Loma Negra Compania Industrial Argentina Sociedad Anonima (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

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6 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
7 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
8 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
9 Trading Symbol Concept (Text/String) For Period dei:TradingSymbol
10 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
11 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
12 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
13 Entity Well-known Seasoned Issuer Concept (Yes/No) For Period dei:EntityWellKnownSeasonedIssuer
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22 Gross profit Concept (Monetary) For Period Credit ifrs-full:GrossProfit
23 Share of profit (loss) of associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
24 Selling and administrative expenses Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
25 Other gains and losses Concept (Monetary) For Period Credit ifrs-full:OtherGainsLosses
26 Tax on debits and credits to bank accounts Concept (Monetary) For Period Debit loma:PaymentsToTaxPaidOnBankTransaction
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30 Financial expenses Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
31 Profit before tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
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33 Current Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
34 Deferred Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
35 NET PROFIT FOR THE YEAR Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
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40 TOTAL OTHER COMPREHENSIVE (LOSS) INCOME Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax
41 TOTAL COMPREHENSIVE INCOME Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
42 Net Profit (loss) for the year attributable to: Abstract ifrs-full:ProfitLossAttributableToAbstract
43 Owners of the Company Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
44 Non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
45 NET PROFIT Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
46 Total comprehensive income (loss) attributable to: Abstract ifrs-full:ComprehensiveIncomeAttributableToAbstract
47 Owners of the Company Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent
48 Non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests
49 TOTAL COMPREHENSIVE INCOME Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
50 Earnings per share (basic and diluted) Concept (Share) For Period ifrs-full:BasicAndDilutedEarningsLossPerShare
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54 ASSETS Abstract ifrs-full:AssetsAbstract
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56 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
57 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
58 Investments Concept (Monetary) As Of Debit ifrs-full:InvestmentAccountedForUsingEquityMethod
59 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
60 Inventories Concept (Monetary) As Of Debit ifrs-full:NoncurrentInventories
61 Other receivables Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentReceivables
62 Trade accounts receivable Concept (Monetary) As Of Debit ifrs-full:NoncurrentTradeReceivables
63 Total non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
64 Current assets Abstract ifrs-full:CurrentAssetsAbstract
65 Inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
66 Other receivables Concept (Monetary) As Of Debit ifrs-full:OtherCurrentReceivables
67 Trade accounts receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
68 Investments Concept (Monetary) As Of Debit ifrs-full:CurrentInvestments
69 Cash and banks Concept (Monetary) As Of Debit ifrs-full:Cash
70 Total current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
71 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
72 SHAREHOLDERS' EQUITY AND LIABILITIES Abstract ifrs-full:EquityAndLiabilitiesAbstract
73 Capital stock and other capital related accounts Concept (Monetary) As Of Credit loma:CapitalStockAndOtherCapitalRelatedAccounts
74 Reserves Concept (Monetary) As Of Credit ifrs-full:CapitalReserve
75 Retained earnings Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
76 Accumulated other comprehensive income Concept (Monetary) As Of Credit ifrs-full:AccumulatedOtherComprehensiveIncome
77 Equity attributable to the owners of the Company Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
78 Non-controlling interests Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
79 Total shareholders' equity Concept (Monetary) As Of Credit ifrs-full:Equity
80 LIABILITIES Abstract ifrs-full:LiabilitiesAbstract
81 Non-current liabilities Abstract ifrs-full:NoncurrentLiabilitiesAbstract
82 Borrowings Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
83 Accounts payable Concept (Monetary) As Of Credit ifrs-full:NoncurrentPayables
84 Provisions Concept (Monetary) As Of Credit ifrs-full:NoncurrentProvisions
85 Tax liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesNoncurrent
86 Other liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
87 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
88 Total non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
89 Current liabilities Abstract ifrs-full:CurrentLiabilitiesAbstract
90 Borrowings Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
91 Accounts payable Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
92 Advances from customers Concept (Monetary) As Of Credit ifrs-full:CurrentDepositsFromCustomers
93 Salaries and social security payables Concept (Monetary) As Of Credit loma:SalariesAndSocialSecurityPayables
94 Tax liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilities
95 Other liabilities Concept (Monetary) As Of Credit ifrs-full:OtherCurrentLiabilities
96 Total current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
97 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
98 Total shareholders' equity and liabilities Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
99 1005 - Statement - Consolidated Statement of Changes in Equity Network

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100 Statement of changes in equity [table] Table

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 ifrs-full:StatementOfChangesInEquityTable
101 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
102 Equity [member] Member ifrs-full:EquityMember
103 Capital Stock [member] Member ifrs-full:IssuedCapitalMember
104 Adjustment to Capital [member] Member loma:AdjustmentToCapitalMember
105 Share Premium [member] Member ifrs-full:SharePremiumMember
106 Other capital adjustments [member] Member loma:OtherCapitalAdjustmentsMember
107 Merger Premium [member] Member ifrs-full:MergerReserveMember
108 Legal reserve [member] Member loma:LegalProceedingsReserveMember
109 Environmental reserve [member] Member loma:OtherEnvironmentRelatedReserveMember
110 Future Dividends Reserve [member] Member loma:FutureDividendsReserveMember
111 Cash flow hedging reserve [member] Member ifrs-full:ReserveOfCashFlowHedgesMember
112 Exchange Differences on Translating Foreign Operations [member] Member ifrs-full:ReserveOfExchangeDifferencesOnTranslationMember
113 Retained Earnings [member] Member ifrs-full:RetainedEarningsMember
114 Equity Attributable to Owners of the Company [member] Member ifrs-full:EquityAttributableToOwnersOfParentMember
115 Non-controlling Interests [member] Member ifrs-full:NoncontrollingInterestsMember
116 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
117 Beginning balance Concept (Monetary) As Of Credit ifrs-full:Equity
118 Distribution of cash dividends Concept (Monetary) For Period Debit ifrs-full:DividendsPaid
119 Partial release of optional reserve for future Dividends Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughOtherDistributionsToOwners
120 Increase in optional reserve for future dividends Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughOtherContributionsByOwners
121 Issuance of common stock from initial public offering, net of issuance costs Concept (Monetary) For Period Credit ifrs-full:IssueOfEquity
122 Other comprehensive income Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
123 Business combination under common control Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary
124 NET PROFIT FOR THE YEAR Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
125 Ending balance Concept (Monetary) As Of Credit ifrs-full:Equity
126 1006 - Statement - Consolidated Statement of Cash Flows Network

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128 Statement of cash flows [abstract] Abstract ifrs-full:StatementOfCashFlowsAbstract
129 CASH FLOWS FROM OPERATING ACTIVITIES Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
130 NET PROFIT FOR THE YEAR Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
131 Adjustments to reconcile net profit to net cash provided by operating activities Abstract ifrs-full:AdjustmentsForReconcileProfitLossAbstract
132 Income tax expense Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncomeTaxExpense
133 Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense
134 Provisions Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForProvisions
135 Interest Concept (Monetary) For Period Debit loma:AdjustmentsForIncreaseDecreaseInInterest
136 Share of profit (loss) of associates Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForUndistributedProfitsOfAssociates
137 Investment income recognized in profit Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForInterestIncome
138 Exchange rate differences Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains
139 Gain on disposal of Property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment
140 Changes in operating assets and liabilities Abstract loma:ChangesInOperatingAssetsAndLiabilitiesAbstract
141 Inventories Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInInventories
142 Other receivables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInOtherOperatingReceivables
143 Trade accounts receivable Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAccountReceivable
144 Advances from customers Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInDepositsFromCustomers
145 Accounts payable Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables
146 Salaries and social security payables Concept (Monetary) For Period Debit loma:AdjustmentsForIncreaseDecreaseInSalariesAndSocialSecurityPayables
147 Provisions Concept (Monetary) For Period Debit loma:AdjustmentsForIncreaseDecreaseInProvisions
148 Tax liabilities Concept (Monetary) For Period Debit loma:AdjustmentsForIncreaseDecreaseInIncomeTaxExpense
149 Other liabilities Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInOtherLiabilities
150 Cash generated from operations Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperations
151 Income tax paid Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidClassifiedAsOperatingActivities
152 Net cash generated by operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
153 CASH FLOWS FROM INVESTING ACTIVITIES Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
154 Proceeds from disposal of Property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
155 Payments to acquire Property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
156 Payments to acquire intangible assets Concept (Monetary) For Period Credit ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities
157 Interest received Concept (Monetary) For Period Debit ifrs-full:InterestReceivedClassifiedAsInvestingActivities
158 Contributions to F.F.F.S.F.I. (Note 38) Concept (Monetary) For Period Credit ifrs-full:PaymentsForDevelopmentProjectExpenditure
159 Cash from business combinations under common control Concept (Monetary) For Period Debit loma:CashFromBusinessCombinationsUnderCommonControl
160 Net cash used in investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
161 CASH FLOWS FROM FINANCING ACTIVITIES Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
162 Proceeds from borrowings Concept (Monetary) For Period Debit ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities
163 Interest paid Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsFinancingActivities
164 Dividends paid Concept (Monetary) For Period Credit ifrs-full:DividendsPaidClassifiedAsFinancingActivities
165 Repayment of borrowings Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities
166 Proceeds from initial public offering, net of issuance costs Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
167 Net cash generated by (used in) financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
168 Net increase (decrease) in cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges
169 Cash and cash equivalents at the beginning of the year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
170 Effects of the exchange rate differences on cash and cash equivalents in foreign currency Concept (Monetary) For Period Debit ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
171 Cash and cash equivalents at the end of the year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
172 1007 - Disclosure - Legal Information Network

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176 1008 - Disclosure - Basis of Preperation of the Consolidated Financial Statements Network

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179 Basis of Preperation of the Consolidated Financial Statements Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory
180 1009 - Disclosure - Summary of Significant Accounting Policies Network

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184 1010 - Disclosure - Critical accounting judgments and key sources used for estimating uncertaint Network

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188 1011 - Disclosure - Net Revenue Network

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192 1012 - Disclosure - Cost of Sales Network

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196 1013 - Disclosure - Selling and Administrative Expenses Network

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200 1014 - Disclosure - Other Gains and Losses Network

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204 1015 - Disclosure - Tax on Debits and Credits to Bank Accounts Network

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208 1016 - Disclosure - Finance Costs, Net Network

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212 1017 - Disclosure - Income Tax Expense Network

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216 1018 - Disclosure - Earnings Per Share Network

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218 Profit or loss [abstract] Abstract ifrs-full:IncomeStatementAbstract
219 Earnings Per Share Concept (Text Block (HTML)) For Period ifrs-full:EarningsPerShareExplanatory
220 1019 - Disclosure - Property, Plant and Equipment Network

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224 1020 - Disclosure - Intangible Assets Network

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228 1021 - Disclosure - Investments Network

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232 1022 - Disclosure - Business Combination Under Common Control Network

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236 1023 - Disclosure - Goodwill Network

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240 1024 - Disclosure - Inventories Network

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244 1025 - Disclosure - Parent Company, Other Shareholders, Associates and Other Related Parties Balances and Transactions Network

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248 1026 - Disclosure - Other Recievables Network

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256 1028 - Disclosure - Cash and Banks Network

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260 1029 - Disclosure - Capital Stock and Other Capital Related Accounts Network

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264 1030 - Disclosure - Accumulated Other Comprehensive Income Network

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272 1032 - Disclosure - Accounts Payable Network

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277 Implied Table Table

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278 Text block1 [abstract] Abstract loma:TextBlock1Abstract
279 Provisions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfProvisionsExplanatory
280 1034 - Disclosure - Tax Liabilities Network

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281 Implied Table Table

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282 Text block1 [abstract] Abstract loma:TextBlock1Abstract
283 Tax Liabilities Concept (Text Block (HTML)) For Period loma:DisclosureOfTaxLiabilitiesExplanatory
284 1035 - Disclosure - Other Liabilities Network

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285 Implied Table Table

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286 Text block1 [abstract] Abstract loma:TextBlock1Abstract
287 Other Liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherLiabilitiesExplanatory
288 1036 - Disclosure - Cash and Cash Equivalents Network

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289 Implied Table Table

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290 Text block1 [abstract] Abstract loma:TextBlock1Abstract
291 Cash and Cash Equivalents Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashAndCashEquivalentsExplanatory
292 1037 - Disclosure - Non-cash Transactions Network

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293 Implied Table Table

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294 Text block1 [abstract] Abstract loma:TextBlock1Abstract
295 Non-cash Transactions Concept (Text Block (HTML)) For Period loma:DisclosureOfNonCashTransactionsExplanatory
296 1038 - Disclosure - Segment Information Network

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297 Implied Table Table

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298 Text block1 [abstract] Abstract loma:TextBlock1Abstract
299 Segment Information Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory
300 1039 - Disclosure - Financial Instruments Network

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301 Implied Table Table

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302 Text block1 [abstract] Abstract loma:TextBlock1Abstract
303 Financial Instruments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialInstrumentsExplanatory
304 1040 - Disclosure - Guarantees Granted to Subsidiaries Network

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305 Implied Table Table

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306 Text block1 [abstract] Abstract loma:TextBlock1Abstract
307 Guarantees Granted to Subsidiaries Concept (Text Block (HTML)) For Period loma:DisclosureOfGuaranteesGrantedToSubsidiariesExplanatory
308 1041 - Disclosure - Restricted Assets Network

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309 Implied Table Table

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310 Text block1 [abstract] Abstract loma:TextBlock1Abstract
311 Restricted Assets Concept (Text Block (HTML)) For Period loma:DisclosureOfRestrictedAssetsExplanatory
312 1042 - Disclosure - Commitments Network

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313 Implied Table Table

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314 Text block1 [abstract] Abstract loma:TextBlock1Abstract
315 Commitments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCommitmentsExplanatory
316 1043 - Disclosure - Investment Projects Network

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317 Implied Table Table

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318 Text block1 [abstract] Abstract loma:TextBlock1Abstract
319 Investment Projects Concept (Text Block (HTML)) For Period loma:DisclosureOfInvestmentProjectsExplanatory
320 1044 - Disclosure - Receivable From Railway Program Execution Unit Network

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321 Implied Table Table

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322 Text block1 [abstract] Abstract loma:TextBlock1Abstract
323 Receivable From Railway Program Execution Unit Concept (Text Block (HTML)) For Period loma:DisclosureReceivableFromRailwayProgramExecutionUnitExplanatory
324 1045 - Disclosure - Trust of Administration Network

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325 Implied Table Table

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326 Text block1 [abstract] Abstract loma:TextBlock1Abstract
327 Trust of Administration Concept (Text Block (HTML)) For Period loma:DisclosureTrustOfAdministrationTextBlock
328 1046 - Disclosure - Restrictions to Dividends Distribution Network

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329 Implied Table Table

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330 Text block1 [abstract] Abstract loma:TextBlock1Abstract
331 Restrictions to Dividends Distribution Concept (Text Block (HTML)) For Period loma:DisclosureRestrictionsToDividendsDistributionExplanatory
332 1047 - Disclosure - Subsequent Events Network

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333 Implied Table Table

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334 Text block1 [abstract] Abstract loma:TextBlock1Abstract
335 Subsequent Events Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEventsAfterReportingPeriodExplanatory
336 1048 - Disclosure - Condensed Unconsolidated Financial Information Network

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337 Implied Table Table

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338 Text block1 [abstract] Abstract loma:TextBlock1Abstract
339 Condensed Unconsolidated Financial Information Concept (Text Block (HTML)) For Period loma:DisclosureOfUnconsolidatedAndSeparateFinancialStatementsExplanatory
340 1049 - Disclosure - Basis of Preperation of the Consolidated Financial Statements (Policies) Network

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341 Implied Table Table

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342 Text block1 [abstract] Abstract loma:TextBlock1Abstract
343 Compliance status Concept (Text Block (HTML)) For Period loma:DescriptionOfAccountingPolicyForComplianceStatusExplanatory
344 Basis of preparation Concept (Text Block (HTML)) For Period loma:DescriptionOfAccountingPolicyForBasisOfPreparationExplanatory
345 Current and non-current classification Concept (Text Block (HTML)) For Period loma:DescriptionOfAccountingPolicyForCurrentAndNoncurrentClassificationExplanatory
346 Use of estimates Concept (Text Block (HTML)) For Period loma:DescriptionOfAccountingPolicyForUseOfEstimatesExplanatory
347 Application of new and revised International Financial Reporting Standards Concept (Text Block (HTML)) For Period loma:DescriptionOfAccountingPolicyForApplicationOfNewInternationalFinancialReportingStandardsExplanatory
348 Basis of consolidation Concept (Text Block (HTML)) For Period loma:DescriptionOfAccountingPolicyForBasisOfConsolidationExplanatory
349 Revenue recognition Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue
350 Sale of goods Concept (Text Block (HTML)) For Period loma:DescriptionOfAccountingPolicyForCostOfGoodsSoldExplanatory
351 Services rendered Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForServiceConcessionArrangementsExplanatory
352 Income from dividends and interest income Concept (Text Block (HTML)) For Period loma:DescriptionOfAccountingPolicyForIncomeFromDividendsAndInterestIncomeExplanatory
353 Goodwill Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForGoodwillExplanatory
354 Investments in associates Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForInvestmentInAssociates
355 Investment in other company Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatory
356 Leasing Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForLeasesExplanatory
357 Foreign currency and functional currency Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFunctionalCurrencyExplanatory
358 Borrowing costs Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForBorrowingCostsExplanatory
359 Taxation Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
360 Property, plant and equipment Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
361 Intangible assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory
362 Impairment of tangible and intangible assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory
363 Inventories Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForMeasuringInventories
364 Provisions Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForProvisionsExplanatory
365 Environmental restoration Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEnvironmentRelatedExpenseExplanatory
366 Financial instruments Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory
367 Financial assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialAssetsExplanatory
368 Financial liabilities and equity instruments Concept (Text Block (HTML)) For Period loma:DescriptionOfAccountingPolicyForFinancialLiabilitiesAndEquityInstrumentsExplanatory
369 Derivative financial instruments Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory
370 Short-term and other long-term employee benefits Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory
371 1050 - Disclosure - Basis of Preperation of the Consolidated Financial Statements (Tables) Network

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372 Statement [Table] Table

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373 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
374 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
375 Yguaz Cementos S.A. [member] Member loma:YguazuCementosSAMember
376 Ferrosur Roca S.A. [member] Member loma:FerrosurRocaSAMember
377 Statement [Line Items] LineItems us-gaap:StatementLineItems
378 Summary of Significant Investments in Subsidiaries Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory
379 Summary of Financial Information on Ferrosur Roca S A Concept (Text Block (HTML)) For Period loma:DisclosureOfSummarizedFinancialInformationOnSubsidiariesExplanatory
380 1051 - Disclosure - Summary of Significant Accounting Policies (Tables) Network

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381 Implied Table Table

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382 Text block1 [abstract] Abstract loma:TextBlock1Abstract
383 Disclosure Of Accounting Policy And Other Classification Adjustments Concept (Text Block (HTML)) For Period loma:DisclosureOfAccountingPolicyAndOtherClassificationAdjustmentsExplanatory
384 Disclosure of information about unconsolidated structured entities controlled by investment entity Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationAboutUnconsolidatedStructuredEntitiesControlledByInvestmentEntityExplanatory
385 1052 - Disclosure - Critical accounting judgments and key sources used for estimating uncertaint (Tables) Network

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386 Implied Table Table

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387 Text block1 [abstract] Abstract loma:TextBlock1Abstract
388 Disclosure of Estimated Useful Life for Property Plant and Equipment and Other Intangible Assets Concept (Text Block (HTML)) For Period loma:DisclosureOfPropertyPlantAndEquipmentAndOtherIntangibleEstimatedUsefulLifeExplanatory
389 1053 - Disclosure - Net Revenue (Tables) Network

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390 Implied Table Table

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391 Text block1 [abstract] Abstract loma:TextBlock1Abstract
392 Disclosure of Net Revenue Concept (Text Block (HTML)) For Period loma:DisclosureOfNetRevenueExplanatory
393 1054 - Disclosure - Cost of Sales (Tables) Network

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394 Implied Table Table

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395 Text block1 [abstract] Abstract loma:TextBlock1Abstract
396 Disclosure of Cost of Sale Concept (Text Block (HTML)) For Period loma:DisclosureOfDetailedInformationAboutCostOfSalesExplanatory
397 Disclosure of Expenses Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfExpensesExplanatory
398 1055 - Disclosure - Selling and Administrative Expenses (Tables) Network

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399 Implied Table Table

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400 Text block1 [abstract] Abstract loma:TextBlock1Abstract
401 Disclosure of selling, general and administrative expenses Concept (Text Block (HTML)) For Period loma:DisclosureOfDetailedInformationAboutSellingGeneralAndAdministrativeExpensesExplanatory
402 1056 - Disclosure - Other Gains and Losses (Tables) Network

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403 Implied Table Table

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404 Text block1 [abstract] Abstract loma:TextBlock1Abstract
405 Summary of Detailed Information About Other Gains and Losses Concept (Text Block (HTML)) For Period loma:DisclosureOfDetailedInformationAboutOtherGainsAndLossesExplanatory
406 1057 - Disclosure - Finance Costs, Net (Tables) Network

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407 Implied Table Table

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408 Text block1 [abstract] Abstract loma:TextBlock1Abstract
409 Summary of Finance Costs Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinanceIncomeExpenseExplanatory
410 1058 - Disclosure - Income Tax Expense (Tables) Network

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411 Statement [Table] Table

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412 Consolidated Entities [Axis] Axis us-gaap:ConsolidatedEntitiesAxis
413 Consolidated Entities [Domain] Member us-gaap:ConsolidatedEntitiesDomain
414 Loma Negra C.I.A.S.A. [member] Member us-gaap:ParentCompanyMember
415 Statement [Line Items] LineItems us-gaap:StatementLineItems
416 Summary of Income Tax Expense Concept (Text Block (HTML)) For Period loma:DisclosureOfComponentsOfIncomeTaxExpenseExplanatory
417 Summary of Income Tax Expense, Current and Deferred Concept (Text Block (HTML)) For Period loma:DisclosureOfCurrentAndDeferredComponentsOfIncomeTaxExplanatory
418 Summary of Deferred Income Tax charged to Income Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDeferredTaxesExplanatory
419 Summary of Unrecognised Taxable Temporary Difference Associated with Investment and Interest Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory
420 1059 - Disclosure - Earnings Per Share (Tables) Network

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421 Implied Table Table

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422 Profit or loss [abstract] Abstract ifrs-full:IncomeStatementAbstract
423 Summary of Earnings and Weighted Average Number of Ordinary Shares used in Calculation of Basic Earnings per Share Concept (Text Block (HTML)) For Period loma:DisclosureOfEarningsPerShareBasicAndDilutedExplanatory
424 1060 - Disclosure - Property, Plant and Equipment (Tables) Network

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425 Implied Table Table

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426 Text block1 [abstract] Abstract loma:TextBlock1Abstract
427 Summary of Property, Plant and Equipment Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory
428 1061 - Disclosure - Intangible Assets (Tables) Network

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429 Implied Table Table

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430 Text block1 [abstract] Abstract loma:TextBlock1Abstract
431 Schedule of Intangible Assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory
432 Summary of Changes in Intangible Assets Concept (Text Block (HTML)) For Period loma:DisclosureOfReconciliationOfChangesInIntangibleAssetsExcludingGoodwilExplanatory
433 1062 - Disclosure - Investments (Tables) Network

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434 Implied Table Table

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435 Text block1 [abstract] Abstract loma:TextBlock1Abstract
436 Summary of Investments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutInvestmentPropertyExplanatory
437 Summary of Share of Profit (Loss) Concept (Text Block (HTML)) For Period loma:DisclosureOfShareOfProfitLossOfJointVenturesExplanatory
438 1063 - Disclosure - Business Combination Under Common Control (Tables) Network

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439 Statement [Table] Table

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440 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
441 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
442 Yguaz Cementos S.A. [member] Member loma:YguazuCementosSAMember
443 Statement [Line Items] LineItems us-gaap:StatementLineItems
444 Summary of Business Combination Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory
445 Summary of Transactions Recognised Separately From Acquisition of Assets and Assumption of Liabilities in Business Combination Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationExplanatory
446 Summary of Cash Generated by Acquisition of Subsidiaries Concept (Text Block (HTML)) For Period loma:DisclosureOfCashGeneratedByAcquisitionOfSubsidiariesExplanatory
447 1064 - Disclosure - Goodwill (Tables) Network

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448 Implied Table Table

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449 Text block1 [abstract] Abstract loma:TextBlock1Abstract
450 Summary of Goodwill Concept (Text Block (HTML)) For Period loma:DisclosureOfCarryingValueOfGoodwillExplanatory
451 Summary of Goodwill Allocated to Cash Generating Units Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory
452 1065 - Disclosure - Inventories (Tables) Network

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453 Implied Table Table

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454 Text block1 [abstract] Abstract loma:TextBlock1Abstract
455 Summary of Inventories Concept (Text Block (HTML)) For Period loma:ScheduleOfInventoriesExplanatory
456 1066 - Disclosure - Parent Company, Other Shareholders, Associates and Other Related Parties Balances and Transactions (Tables) Network

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457 Implied Table Table

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458 Text block1 [abstract] Abstract loma:TextBlock1Abstract
459 Schedule of Outstanding Balances Between the Group and the Parent Company, Other Shareholders, Associates and Other Related Parties Concept (Text Block (HTML)) For Period loma:DisclosureOfOutstandingBalancesForRelatedPartyTransactionsExplanatory
460 Summary of Balances of Related Party Transactions Concept (Text Block (HTML)) For Period loma:DisclosureOfDetailedInformationOfRelatedPartyExplanatory
461 Disclosure of Transactions Between the Group and Parent Companies, Associates and Related Parties Concept (Text Block (HTML)) For Period loma:DisclosureOfSummaryOfRelatedPartyTransactionsExplanatory
462 Disclosure of Dividend Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDividendsExplanatory
463 1067 - Disclosure - Other Recievables (Tables) Network

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464 Implied Table Table

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465 Text block1 [abstract] Abstract loma:TextBlock1Abstract
466 Summary of Other Receivables Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory
467 1068 - Disclosure - Trade Accounts Receivable (Tables) Network

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468 Implied Table Table

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469 Text block1 [abstract] Abstract loma:TextBlock1Abstract
470 Summary of Trade Accounts Receivables Concept (Text Block (HTML)) For Period loma:DisclosureOfTradeReceivableExplanatory
471 Summary of Maturities of Accounts Receivable Concept (Text Block (HTML)) For Period loma:DisclosureOfAgingOfAccountsReceivablesExplanatory
472 Summary of Financial Assets That Are Either Past Due or Impaired Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialAssetsThatAreEitherPastDueOrImpairedExplanatory
473 Summary of Changes in Allowance for Doubtful Accounts Concept (Text Block (HTML)) For Period loma:DisclosureOfChangesInAllowanceForDoubtfulAccountsExplanatory
474 1069 - Disclosure - Cash and Banks (Tables) Network

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475 Implied Table Table

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476 Text block1 [abstract] Abstract loma:TextBlock1Abstract
477 Schedule of cash and banks Concept (Text Block (HTML)) For Period loma:DisclosureOfCashAndBankBalancesExplanatory
478 1070 - Disclosure - Capital Stock and Other Capital Related Accounts (Tables) Network

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479 Implied Table Table

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480 Text block1 [abstract] Abstract loma:TextBlock1Abstract
481 Disclosure of detailed information of capital stock and other capital related accounts Concept (Text Block (HTML)) For Period loma:DisclosureOfDetailedInformationOfCapitalStockAndOtherCapitalRelatedAccountsExplanatory
482 Disclosure of issued paid in and registered capital Concept (Text Block (HTML)) For Period loma:DisclosureOfIssuedPaidinAndRegisteredCapitalExplanatory
483 1071 - Disclosure - Accumulated Other Comprehensive Income (Tables) Network

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484 Implied Table Table

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485 Text block1 [abstract] Abstract loma:TextBlock1Abstract
486 Schedule of Accumulated Other Comprehensive Income Concept (Text Block (HTML)) For Period loma:DisclosureOfDetailedInformationAboutAccumulatedOtherComprehensiveIncomeLossExplanatory
487 1072 - Disclosure - Borrowings (Tables) Network

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488 Statement [Table] Table

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489 Consolidated Entities [Axis] Axis us-gaap:ConsolidatedEntitiesAxis
490 Consolidated Entities [Domain] Member us-gaap:ConsolidatedEntitiesDomain
491 Loma Negra C.I.A.S.A. [member] Member us-gaap:ParentCompanyMember
492 Statement [Line Items] LineItems us-gaap:StatementLineItems
493 Summary of Composition of Borrowings Concept (Text Block (HTML)) For Period loma:DisclosureOfCompositionOfBorrowingsExplanatory
494 Summary of Detail Information of Borrowings Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory
495 Schedule of Movements of Borrowings Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesExplanatory
496 Maturity Schedule of Long-term Loans Concept (Text Block (HTML)) For Period loma:DisclosureOfMaturityOfBorrowingsExplanatory
497 1073 - Disclosure - Accounts Payable (Tables) Network

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498 Statement [Table] Table

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499 Consolidated Entities [Axis] Axis us-gaap:ConsolidatedEntitiesAxis
500 Consolidated Entities [Domain] Member us-gaap:ConsolidatedEntitiesDomain
501 Loma Negra C.I.A.S.A. [member] Member us-gaap:ParentCompanyMember
502 Statement [Line Items] LineItems us-gaap:StatementLineItems
503 Summary of Accounts Payable Concept (Text Block (HTML)) For Period loma:DisclosureOfDetailedInformationAboutAccountsPayableExplanatory
504 1074 - Disclosure - Provisions (Tables) Network

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505 Statement [Table] Table

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506 Consolidated Entities [Axis] Axis us-gaap:ConsolidatedEntitiesAxis
507 Consolidated Entities [Domain] Member us-gaap:ConsolidatedEntitiesDomain
508 Loma Negra C.I.A.S.A. [member] Member us-gaap:ParentCompanyMember
509 Statement [Line Items] LineItems us-gaap:StatementLineItems
510 Summary of Other Provisions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherProvisionsExplanatory
511 Summary of Changes in Provisions Concept (Text Block (HTML)) For Period loma:DisclosureOfChangesInProvisionExplanatory
512 1075 - Disclosure - Tax Liabilities (Tables) Network

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513 Statement [Table] Table

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514 Consolidated Entities [Axis] Axis us-gaap:ConsolidatedEntitiesAxis
515 Consolidated Entities [Domain] Member us-gaap:ConsolidatedEntitiesDomain
516 Loma Negra C.I.A.S.A. [member] Member us-gaap:ParentCompanyMember
517 Statement [Line Items] LineItems us-gaap:StatementLineItems
518 Summary of Information About Tax Liabilities Concept (Text Block (HTML)) For Period loma:DisclosureOfDetailedInformationAboutTaxLiabilitiesExplanatory
519 1076 - Disclosure - Other Liabilities (Tables) Network

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520 Statement [Table] Table

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521 Consolidated Entities [Axis] Axis us-gaap:ConsolidatedEntitiesAxis
522 Consolidated Entities [Domain] Member us-gaap:ConsolidatedEntitiesDomain
523 Loma Negra C.I.A.S.A. [member] Member us-gaap:ParentCompanyMember
524 Statement [Line Items] LineItems us-gaap:StatementLineItems
525 Disclosure of Other Liabilities Concept (Text Block (HTML)) For Period loma:DisclosureOfDetailedInformationAboutOtherLiabilitiesExplanatory
526 1077 - Disclosure - Cash and Cash Equivalents (Tables) Network

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527 Implied Table Table

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528 Text block1 [abstract] Abstract loma:TextBlock1Abstract
529 Disclosure of Detailed Information About Cash and Cash Equivalents Concept (Text Block (HTML)) For Period loma:DisclosureOfDetailedInformationAboutCashAndCashEquivalentsExplanatory
530 1078 - Disclosure - Non-cash Transactions (Tables) Network

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531 Implied Table Table

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532 Text block1 [abstract] Abstract loma:TextBlock1Abstract
533 Summary of Non-cash Transactions Concept (Text Block (HTML)) For Period loma:DisclosureOfSignificantNoncashTransactionsExplanatory
534 1079 - Disclosure - Segment Information (Tables) Network

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535 Implied Table Table

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536 Text block1 [abstract] Abstract loma:TextBlock1Abstract
537 Summary of Segment Information Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOperatingSegmentsExplanatory
538 Summary of Geographical Information Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGeographicalAreasExplanatory
539 1080 - Disclosure - Financial Instruments (Tables) Network

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540 Statement [Table] Table

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541 Consolidated Entities [Axis] Axis us-gaap:ConsolidatedEntitiesAxis
542 Consolidated Entities [Domain] Member us-gaap:ConsolidatedEntitiesDomain
543 Loma Negra C.I.A.S.A. [member] Member us-gaap:ParentCompanyMember
544 Statement [Line Items] LineItems us-gaap:StatementLineItems
545 Summary of Net Debt to Equity Ratio Concept (Text Block (HTML)) For Period loma:DisclosureOfNetDebtToEquityRatioExplanatory
546 Summary of Financial Instruments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory
547 Summary of Monetary Assets and Liabilities Denominated in Foreign Currency Concept (Text Block (HTML)) For Period loma:DisclosureOfFinancialInstrumentsAtForeignExchangeRiskExplanatory
548 Disclosure of Foreign Currency Sensitivity Analysis Concept (Text Block (HTML)) For Period loma:DisclosureOfForeignCurrencySensitivityAnalysisExplanatory
549 Summary of Interest Rate Risk Management Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsExplanatory
550 Schedule of Contractual Maturity for Non-derivative Financial Liabilities with Agreed Repayment Periods Concept (Text Block (HTML)) For Period ifrs-full:MaturityAnalysisForNonderivativeFinancialLiabilities
551 Schedule of Financial Assets and Financial Liabilities are Measured at Fair Value on a Recurring Basis Concept (Text Block (HTML)) For Period loma:DisclosureOfNetDerivativeContractsMeasuredAtFairValueUsingSignificantUnobservableInputsExplanatory
552 1081 - Disclosure - Condensed Unconsolidated Financial Information (Tables) Network

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553 Implied Table Table

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555 Summary of Information AboutUnconsolidated Structured Entities Concept (Text Block (HTML)) For Period loma:DisclosureOfInformationAboutUnconsolidatedStructuredEntitiesExplanatory
556 1082 - Disclosure - Legal Information - Additional Information (Detail) Network

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557 Disclosure Of General Information About Financial Statements [Table] Table

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561 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
562 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
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565 Fiscal year Concept (xbrli:durationItemType) For Period loma:FiscalYearsInOperation
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567 Number of plants Concept (Integer) For Period loma:NumberOfPlants
568 Concession period Concept (xbrli:durationItemType) For Period loma:ConcessionsAgreementPeriod
569 Concession extension period Concept (xbrli:durationItemType) For Period loma:ConcessionExtensionPeriod
570 Percentage of ownership held by parent company Concept (Percent) For Period loma:PercentageOfOwnershipHeldByParent
571 Name of ultimate parent company Concept (Text/String) For Period ifrs-full:NameOfParentEntity
572 Increase in number of authorized shares Concept (Shares) For Period loma:IncreaseInNumberOfSharesAuthorised
573 Shares transferred Concept (Shares) As Of loma:NumberOfSharesTransferred
574 Number of shares held by parent company Concept (Shares) As Of loma:NumberOfSharesHeldByParent
575 Share price Concept (Share) For Period loma:ShareIssuePrice
576 Capital stock Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
577 Number of common shares issued Concept (Shares) As Of ifrs-full:NumberOfSharesIssuedAndFullyPaid
578 Par value per share Concept (Share) As Of ifrs-full:ParValuePerShare
579 Number of votes per share Concept (Integer) For Period loma:NumberOfVotesPerShare
580 1083 - Disclosure - Basis of Preparation of the Consolidated Financial Statements - Summary of Significant Investments in Subsidiaries (Detail) Network

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581 Disclosure of subsidiaries [table] Table

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584 Cofesur S.A. [member] Member loma:CofesurSAMember
585 Ferrosur Roca S.A. [member] Member loma:FerrosurRocaSAMember
586 Recycomb S.A.U. [member] Member loma:RecycombSAUMember
587 Yguaz Cementos S.A. [member] Member loma:YguazuCementosSAMember
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591 Percentage of direct and indirect equity interest rate Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
592 1084 - Disclosure - Basis of Preparation of the Consolidated Financial Statements - Summary of Significant Investments in Subsidiaries (Parenthetical) (Detail) Network

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593 Disclosure of subsidiaries [table] Table

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598 Interest acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
599 1085 - Disclosure - Basis of Preparation of the Consolidated Financial Statements - Summary of Financial Information on Yguazu Cementos S A (Detail) Network

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600 Disclosure of subsidiaries [table] Table

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601 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
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604 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
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606 Non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
607 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
608 Non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
609 Equity attributable to the owners of the Company Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
610 Non-controllinginterests Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
611 Net revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
612 Finance cost, net Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
613 Depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
614 Income tax Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
615 Profit for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
616 Net cash generated by operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
617 Net cash used in investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
618 Net cash used in financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
619 1086 - Disclosure - Basis of Preparation of the Consolidated Financial Statements - Summary of Financial Information on Yguazu Cementos S A (Parenthetical) (Detail) Network

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620 Disclosure of subsidiaries [table] Table

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621 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
622 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
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624 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
625 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
626 1087 - Disclosure - Basis of Preparation of the Consolidated Financial Statements - Summary of Financial Information on Ferrosur Roca S A (Detail) Network

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627 Disclosure of subsidiaries [table] Table

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628 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
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630 Ferrosur Roca S.A. [member] Member loma:FerrosurRocaSAMember
631 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
632 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
633 Non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
634 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
635 Non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
636 Equity attributable to the owners of the Company Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
637 Non-controllinginterests Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
638 Net revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
639 Finance costs, net Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
640 Depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
641 Income tax Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
642 Profit or (loss) for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
643 Net cash generated by operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
644 Net cash used in investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
645 Net cash (used in) generated by financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
646 1088 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail) Network

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647 Disclosure of significant accounting policies [table] Table

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650 2019 [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
651 2020 and beyond [member] Member loma:LaterThanTwoYearsMember
652 Unconsolidated structured entities controlled by investment entity [axis] Axis ifrs-full:UnconsolidatedStructuredEntitiesControlledByInvestmentEntityAxis
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654 Ferrosur Roca Management Trust [member] Member loma:FerrosurRocaManagementTrustMember
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656 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
657 Yguaz Cementos S.A. [member] Member loma:YguazuCementosSAMember
658 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
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665 Yguaz Cementos S.A. [member] Member loma:YguazuCementosSAMember
666 Ferrosur Roca S.A. [member] Member loma:FerrosurRocaSAMember
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668 Ranges [member] Member ifrs-full:RangesMember
669 Top of Range [member] Member ifrs-full:TopOfRangeMember
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671 Goodwill impairment loss Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossGoodwill
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673 Tax rate at the end of each year Concept (Percent) For Period loma:PercentageOfTaxableAssetsDuringPeriod
674 Income tax withholding rate Concept (Percent) For Period loma:TaxWithholdingPercentage
675 Percentage of single and final tax payment on dividend Concept (Percent) For Period loma:PercentageOfSingleAndFinalTaxPaymentOnDividend
676 Personal assets tax rate Concept (Percent) For Period loma:PersonalAssetsTaxRate
677 Other receivables Concept (Monetary) As Of Debit ifrs-full:OtherReceivables
678 Dividend withholding percentage Concept (Percent) For Period loma:DividendsWithholdingTaxPercentage
679 Proportion of ownership interest in subsidiary Concept (Percent) For Period loma:ProportionOfOwnershipInterestInSubsidiaryValuedAtCost
680 Business combination under common control Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary
681 Proportion of equity interest in subsidiary Concept (Percent) For Period loma:AcquisitionOfEquityInterest
682 Interest acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
683 Legal reserve as percentage of net income Concept (Percent) For Period loma:LegalReserveAsPercentageOfNetIncome
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685 Proportion of ownership interest in subsidiary Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
686 Proportion of noncontrolling interest held Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestsHeldByNoncontrollingInterests
687 1089 - Disclosure - Summary of Significant Accounting Policies - Disclosure of Accounting Policy And Other Classification Adjustments (Detail) Network

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688 Disclosure of associates [table] Table

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689 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
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692 Disclosure of associates and joint ventures [line items] LineItems loma:DisclosureOfAssociatesAndJointVenturesLineItems
693 Net revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
694 Finance costs, net Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
695 Depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
696 Income tax Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
697 Profit or (loss) for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
698 Net cash generated by (used in) operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
699 Net cash used in investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
700 Net cash (used in) generated by financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
701 1090 - Disclosure - Summary of Significant Accounting Policies - Disclosure of Information About Unconsolidated Structured Entities Controlled by Investment Entity (Detail) Network

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702 Disclosure of information about unconsolidated structured entities controlled by investment entity [table] Table

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703 Unconsolidated structured entities controlled by investment entity [axis] Axis ifrs-full:UnconsolidatedStructuredEntitiesControlledByInvestmentEntityAxis
704 Unconsolidated structured entities controlled by investment entity [member] Member ifrs-full:UnconsolidatedStructuredEntitiesControlledByInvestmentEntityMember
705 Ferrosur Roca Management Trust [member] Member loma:FerrosurRocaManagementTrustMember
706 Disclosure of information about unconsolidated structured entities controlled by investment entity [line items] LineItems ifrs-full:DisclosureOfInformationAboutUnconsolidatedStructuredEntitiesControlledByInvestmentEntityLineItems
707 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
708 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
709 Equity Concept (Monetary) As Of Credit ifrs-full:Equity
710 Income for the year Concept (Monetary) For Period Credit ifrs-full:Revenue
711 1091 - Disclosure - Critical Accounting Judgments and Key Sources Used for Estimating Uncertain - Additional Information (Detail) Network

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712 Implied Table Table

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713 Reconciliation of changes in goodwill [abstract] Abstract ifrs-full:ReconciliationOfChangesInGoodwillAbstract
714 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
715 Goodwill impairment loss Concept (Monetary) As Of Credit loma:GoodwillAccumulatedImpairment
716 1092 - Disclosure - Critical Accounting Judgement and Key Sources used for Estimating Uncertaint - Disclosure of Estimated Useful Life for Property Plant and Equipment and Other Intangible Assets (Detail) Network

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717 Disclosure of detailed information about property, plant and equipment [table] Table

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718 Range [axis] Axis ifrs-full:RangeAxis
719 Ranges [member] Member ifrs-full:RangesMember
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721 Top of Range [member] Member ifrs-full:TopOfRangeMember
722 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
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724 Quarries [member] Member ifrs-full:MiningAssetsMember
725 Quarries - Cost of surface excavations [member] Member ifrs-full:TangibleExplorationAndEvaluationAssetsMember
726 Plants and Buildings [member] Member loma:PlantBuildingsMember
727 Machinery, Equipment and Spare Parts [member] Member ifrs-full:MachineryMember
728 Furniture and fixtures [member] Member ifrs-full:FixturesAndFittingsMember
729 Tools and Devices [member] Member loma:ToolsAndDevicesMember
730 Transport and Load Vehicles [member] Member loma:TransportAndLoadVehiclesMember
731 Classes of intangible assets and goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsAndGoodwillAxis
732 Intangible assets and goodwill [member] Member ifrs-full:IntangibleAssetsAndGoodwillMember
733 Software [member] Member ifrs-full:ComputerSoftwareMember
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735 Estimated useful life for property plant and equipment and other intangible assets Concept (Text/String) For Period ifrs-full:UsefulLivesOrDepreciationRatesPropertyPlantAndEquipment
736 Estimated useful life for property plant and equipment and other intangible assets Concept (Text/String) For Period ifrs-full:UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwill
737 1093 - Disclosure - Net Revenue - Disclosure of Net Revenue (Detail) Network

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738 Implied Table Table

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742 External customers Concept (Monetary) For Period Credit loma:RevenueFromExternalCustomers
743 Services rendered Concept (Monetary) For Period Credit ifrs-full:RevenueFromRenderingOfServices
744 (-) Bonus / Discounts Concept (Monetary) For Period Debit loma:DiscountsAndSalesReturns
745 Total Concept (Monetary) For Period Credit ifrs-full:Revenue
746 1094 - Disclosure - Cost of Sales - Disclosure of Cost of Sale (Detail) Network

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747 Disclosure Of Cost Of Sales [table] Table

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752 Currency translation differences Concept (Monetary) For Period Debit loma:TaxEffectOnForeignCurrencyTranslationDifferences
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757 Inventories Concept (Monetary) As Of Debit loma:InventoriesCurrentAndNoncurrent
758 Finished products Concept (Monetary) As Of Debit loma:FinishedGoodsCurrentAndNoncurrent
759 Products in progress Concept (Monetary) As Of Debit loma:WorkInProgressCurrentAndNoncurrent
760 Raw materials, materials, spare parts and fuels Concept (Monetary) As Of Debit loma:RawMaterialsMaterialsSparePartsFuelsAndTransitCurrentAndNoncurrent
761 Acquisition of inventories from business combination under common control (Note 16) Concept (Monetary) As Of Debit ifrs-full:InventoryRecognisedAsOfAcquisitionDate
762 1095 - Disclosure - Cost of Sales - Disclosure of Production Expenses (Detail) Network

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763 Disclosure Of Expenses By Nature [Table] Table

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768 Fees and compensation for services Concept (Monetary) For Period Debit ifrs-full:ProfessionalFeesExpense
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770 Transport and travelling expenses Concept (Monetary) For Period Debit ifrs-full:TransportationExpense
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773 Depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss
774 Preservation and maintenance costs Concept (Monetary) For Period Debit ifrs-full:RepairsAndMaintenanceExpense
775 Communications Concept (Monetary) For Period Debit ifrs-full:CommunicationExpense
776 Leases Concept (Monetary) For Period Debit ifrs-full:InterestExpenseOnFinanceLeases
777 Employee benefits Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
778 Water, natural gas and energy services Concept (Monetary) For Period Debit ifrs-full:FuelAndEnergyExpense
779 Freight Concept (Monetary) For Period Debit loma:FreightCosts1
780 Thermal energy Concept (Monetary) For Period Debit loma:ThermalEnergy
781 Insurance Concept (Monetary) For Period Debit ifrs-full:InsuranceExpense
782 Packaging Concept (Monetary) For Period Debit loma:PackagingExpense
783 Electrical power Concept (Monetary) For Period Debit loma:ElectricalPower
784 Contractors Concept (Monetary) For Period Debit loma:ContractorsExpense
785 Tolls Concept (Monetary) For Period Debit loma:Tolls
786 Canon Concept (Monetary) For Period Debit loma:CanonLoss
787 Security Concept (Monetary) For Period Debit loma:SecurityServices
788 Others Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
789 Total Concept (Monetary) For Period Debit loma:ProductionAndManufacturingExpenses
790 1096 - Disclosure - Selling and Administrative Expenses - Disclosure Of Selling General And Administrative Expenses Table (Detail) Network

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791 Disclosure Of Selling And Administrative Expenses [Table] Table

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*

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792 Income Statement Location1 [Axis] Axis loma:IncomeStatementLocation1Axis
793 Income Statement Location1 [Domain] Member loma:IncomeStatementLocation1Domain
794 Selling and administrative expenses [member] Member loma:SellingAndAdministrativeExpensesMember
795 Disclosure of selling and administrative expenses [line items] LineItems loma:DisclosureOfSellingAndAdministrativeExpensesLineItems
796 Managers, directors and trustees' fees Concept (Monetary) For Period Debit ifrs-full:DirectorsRemunerationExpense
797 Fees and compensation for services Concept (Monetary) For Period Debit ifrs-full:ProfessionalFeesExpense
798 Salaries, wages and social security charges Concept (Monetary) For Period Debit ifrs-full:WagesAndSalaries
799 Transport and travelling expenses Concept (Monetary) For Period Debit ifrs-full:TransportationExpense
800 Data processing Concept (Monetary) For Period Debit loma:DataProcessingExpenses
801 Advertising expenses Concept (Monetary) For Period Debit ifrs-full:AdvertisingExpense
802 Taxes, contributions and commissions Concept (Monetary) For Period Debit ifrs-full:FeeAndCommissionExpense
803 Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss
804 Preservation and maintenance costs Concept (Monetary) For Period Debit ifrs-full:RepairsAndMaintenanceExpense
805 Communications Concept (Monetary) For Period Debit ifrs-full:CommunicationExpense
806 Leases Concept (Monetary) For Period Debit ifrs-full:InterestExpenseOnFinanceLeases
807 Employee benefits Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
808 Water, natural gas and energy services Concept (Monetary) For Period Debit ifrs-full:FuelAndEnergyExpense
809 Freight Concept (Monetary) For Period Debit loma:FreightCosts1
810 Insurance Concept (Monetary) For Period Debit ifrs-full:InsuranceExpense
811 Allowance for doubtful accounts Concept (Monetary) For Period Debit loma:AdjustmentsForAllowanceForDoubtfulAccounts
812 Security Concept (Monetary) For Period Debit loma:SecurityServices
813 Others Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
814 Total Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
815 1097 - Disclosure - Other Gains and Losses - Summary of Other Gains And Losses Table (Detail) Network

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816 Implied Table Table

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817 Analysis of income and expense [abstract] Abstract ifrs-full:AnalysisOfIncomeAndExpenseAbstract
818 Gain on disposal of Property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:GainsOnDisposalsOfPropertyPlantAndEquipment
819 Donations Concept (Monetary) For Period Debit ifrs-full:DonationsAndSubsidiesExpense
820 Technical assistance and services provided Concept (Monetary) For Period Credit ifrs-full:RevenueFromRenderingOfTelecommunicationServices
821 Gain on tax credits acquired Concept (Monetary) For Period Credit loma:GainOnTaxCreditsAcquired
822 Canon recovery - Ferrosur Roca S.A. (Note 39) Concept (Monetary) For Period Credit ifrs-full:PropertyDevelopmentAndProjectManagementIncome
823 Contingencies Concept (Monetary) For Period Debit loma:AdjustmentsForProvisionForContingencies
824 Result from U.E.P.F.P. - Ferrosur Roca S.A. (Note 38) Concept (Monetary) For Period Credit ifrs-full:GainsOnLitigationSettlements
825 Service fee from ADS Depositary bank Concept (Monetary) For Period Credit loma:IncomeFromServiceFees
826 Leases Concept (Monetary) For Period Credit ifrs-full:SellingProfitLossOnFinanceLeases
827 Miscellaneous Concept (Monetary) For Period Credit ifrs-full:OtherOperatingIncomeExpense
828 Total Concept (Monetary) For Period Credit ifrs-full:OtherGainsLosses
829 1098 - Disclosure - Tax on Debits and Credits to Bank Accounts - Additional Information (Detail) Network

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830 Implied Table Table

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831 Disclosure of Tax on debits and credits to bank accounts [abstract] Abstract loma:DisclosureOfTaxOnDebitsAndCreditsToBankAccountsAbstract
832 General tax rate for credits and debits Concept (Percent) For Period loma:GeneralTaxRateForCreditsAndDebits
833 Percentage of amount levied on credits payment to be taken into account for income tax calculation Concept (Percent) For Period loma:PercentageOfAmountLeviedOnCreditTakenIntoAccountForCalculatingIncomeTax
834 Percentage of credits included in profit or loss Concept (Percent) For Period loma:PercentageOfCreditsIncludedInProfitOrLoss
835 Percentage of debits included in profit or loss Concept (Percent) For Period loma:PercentageOfDebitsIncludedInProfitOrLoss
836 1099 - Disclosure - Finance Costs, Net - Summary of Finance Income Costs (Detail) Network

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837 Implied Table Table

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838 Disclosure of finance income costs [abstract] Abstract loma:DisclosureOfFinanceIncomeCostsAbstract
839 Exchange rate differences Abstract ifrs-full:ExchangeDifferencesOnTranslationAbstract
840 Foreign exchange gains Concept (Monetary) For Period Credit ifrs-full:NetForeignExchangeGain
841 Foreign exchange losses Concept (Monetary) For Period Debit ifrs-full:NetForeignExchangeLoss
842 Total Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
843 Financial income Abstract loma:FinanceIncomeAbstract
844 Interest from short-term investments Concept (Monetary) For Period Credit ifrs-full:InvestmentIncome
845 Interest from loans to related parties Concept (Monetary) For Period Credit ifrs-full:CashAdvancesAndLoansMadeToRelatedParties
846 Unwinding of discounts on receivables Concept (Monetary) For Period Credit loma:UnwindingOfDiscountsOnReceivables
847 Total Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
848 Financial expenses Abstract ifrs-full:ExpenseByNatureAbstract
849 Interest on borrowings Concept (Monetary) For Period Debit ifrs-full:InterestExpenseOnBorrowings
850 Interest on borrowings with related parties Concept (Monetary) For Period Debit ifrs-full:CashAdvancesAndLoansFromRelatedParties
851 Unwinding of discounts on provisions and liabilities Concept (Monetary) For Period Debit ifrs-full:ExpenseDueToUnwindingOfDiscountOnProvisions
852 Others Concept (Monetary) For Period Debit ifrs-full:OtherFinanceCost
853 Total Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
854 1100 - Disclosure - Income Tax Expense - Summary of Income Tax Expense (Detail) Network

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855 Implied Table Table

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856 Major components of tax expense (income) [abstract] Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
857 Profit before income tax expense Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
858 Statutory rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
859 Income tax at statutory rate Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
860 Adjustments for calculation of the effective income tax: Abstract ifrs-full:ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract
861 Effect of different statutory income tax rate in Paraguay Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome
862 Expenses of capital issue Concept (Monetary) For Period Debit loma:TaxEffectOfCapitalIssue
863 Share of profit (loss) of associates Concept (Monetary) For Period Debit loma:TaxEffectOfShareOfResultsOfAssociates
864 Change in tax rate (note 3.7.3) Concept (Monetary) For Period Debit ifrs-full:TaxEffectFromChangeInTaxRate
865 Other non-taxable income or non-deductible expense, net Concept (Monetary) For Period Debit ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
866 Income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
867 1101 - Disclosure - Income Tax Expense - Summary of Income Tax Expense (Parenthetical) (Detail) Network

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868 Disclosure Of Income Taxes [Table] Table

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869 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
870 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
871 Argentina [member] Member country:AR
872 Paraguay [member] Member country:PY
873 Disclosure Of Income Taxes [Line Items] LineItems loma:DisclosureOfIncomeTaxesLineItems
874 Statutory rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
875 1102 - Disclosure - Income Tax Expense - Summary of Income Tax Expense, Current and Deferred (Detail) Network

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876 Implied Table Table

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877 Major components of tax expense (income) [abstract] Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
878 Current Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
879 Deferred Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
880 Income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
881 1103 - Disclosure - Income Tax Expense - Summary of Deferred Income Tax (Detail) Network

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882 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

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883 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
884 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
885 Carryforward subsidiary tax losses [member] Member loma:DeferredTaxAssetsCarryforwardSubsidiaryTaxLossesMember
886 Provisions [member] Member loma:DeferredTaxAssetsProvisionsMember
887 Trade accounts receivable [member] Member loma:DeferredTaxAssetsTradeAccountsReceivableMember
888 Others [member] Member loma:DeferredTaxAssetsOthersMember
889 Accounts payable and investments [member] Member loma:DeferredTaxLiabilitiesAccountsPayableAndInvestmentsMember
890 Other receivables [member] Member loma:DeferredTaxLiabilitiesOtherReceivablesMember
891 Property, plant and equipment [member] Member loma:DeferredTaxLiabilitiesPropertyPlantAndEquipmentMember
892 Others [member] Member loma:DeferredTaxLiabilitiesOthersMember
893 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
894 Assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
895 Liabilities Concept (Monetary) As Of Credit ifrs-full:NetDeferredTaxLiabilities
896 Total Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
897 1104 - Disclosure - Income Tax Expense - Summary of Unrecognized Taxable Temporary Difference Associated with Investment and Interest (Detail) Network

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898 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

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899 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
900 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
901 Subsidiaries [member] Member ifrs-full:SubsidiariesMember
902 Associates [member] Member ifrs-full:AssociatesMember
903 Others [member] Member ifrs-full:OtherRelatedPartiesMember
904 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
905 Total Concept (Monetary) As Of ifrs-full:TemporaryDifferencesAssociatedWithInvestmentsInSubsidiariesBranchesAndAssociatesAndInterestsInJointVentures
906 1105 - Disclosure - Earnings Per Share - Summary of Earnings and Weighted Average Number of Ordinary Shares used in Calculation of Basic Earnings per Share (Detail) Network

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907 Implied Table Table

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908 Earnings per share [abstract] Abstract ifrs-full:EarningsPerShareAbstract
909 Net profit attributable to Owners of the Company-Earnings used in the calculation of basic earnings per share Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
910 Weighted average number of ordinary shares for purposes of basic and diluted earnings per share Concept (Shares) For Period ifrs-full:WeightedAverageShares
911 Basic and diluted earnings per share Concept (Share) For Period ifrs-full:BasicAndDilutedEarningsLossPerShare
912 1106 - Disclosure - Earnings Per Share - Summary of Earnings and Weighted Average Number of Ordinary Shares used in Calculation of Basic Earnings per Share (Parenthetical) (Detail) Network

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913 Implied Table Table

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914 Earnings per share [abstract] Abstract ifrs-full:EarningsPerShareAbstract
915 Weighted average number of outstanding shares Concept (Shares) For Period ifrs-full:WeightedAverageShares
916 1107 - Disclosure - Property of Plant and Equipment - Summary of Property, Plant and Equipment (Detail) Network

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917 Disclosure of detailed information about property, plant and equipment [table] Table

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918 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
919 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
920 Land [member] Member ifrs-full:LandMember
921 Plant and buildings [member] Member ifrs-full:LandAndBuildingsMember
922 Machinery, equipment and spare parts [member] Member loma:MachineryEquipmentAndSparePartsMember
923 Transport and Load Vehicles [member] Member loma:TransportAndLoadVehiclesMember
924 Furniture and fixtures [member] Member ifrs-full:FixturesAndFittingsMember
925 Quarries [member] Member ifrs-full:MiningPropertyMember
926 Tools and Devices [member] Member loma:ToolsAndDevicesMember
927 Work in progress [member] Member ifrs-full:ConstructionInProgressMember
928 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
929 Carrying amount [member] Member ifrs-full:CarryingAmountMember
930 Gross carrying amount [member] Member ifrs-full:GrossCarryingAmountMember
931 Accumulated depreciation and amortisation [member] Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
932 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
933 Property Plant and Equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
934 Property Plant and Equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
935 1108 - Disclosure - Property of Plant and Equipment - Summary of Breakdown of Property, Plant and Equipment (Detail) Network

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936 Disclosure of detailed information about property, plant and equipment [table] Table

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937 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
938 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
939 Land [member] Member ifrs-full:LandMember
940 Plant and buildings [member] Member ifrs-full:LandAndBuildingsMember
941 Machinery, equipment and spare parts [member] Member loma:MachineryEquipmentAndSparePartsMember
942 Transport and Load Vehicles [member] Member loma:TransportAndLoadVehiclesMember
943 Furniture and fixtures [member] Member ifrs-full:FixturesAndFittingsMember
944 Quarries [member] Member ifrs-full:MiningPropertyMember
945 Tools and Devices [member] Member loma:ToolsAndDevicesMember
946 Work in progress [member] Member ifrs-full:ConstructionInProgressMember
947 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
948 Carrying amount [member] Member ifrs-full:CarryingAmountMember
949 Gross carrying amount [member] Member ifrs-full:GrossCarryingAmountMember
950 Accumulated depreciation and amortisation [member] Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
951 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
952 Beginning balance Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
953 Effect of foreign currency exchange differences Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment
954 Business combination under common control (Note 16) Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment
955 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
956 Depreciation charge Concept (Monetary) For Period Debit loma:IncreaseDecreaseDepreciationPropertyPlantAndEquipment
957 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsPropertyPlantAndEquipment
958 Transfers Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesPropertyPlantAndEquipment
959 Ending balance Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
960 1109 - Disclosure - Intangible Assets - Schedule of Intangible Assets (Detail) Network

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961 Disclosure of detailed information about intangible assets [table] Table

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962 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
963 Intangible assets other than goodwill [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
964 Software [member] Member ifrs-full:ComputerSoftwareMember
965 Mining rights [member] Member ifrs-full:MiningRightsMember
966 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
967 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
968 1110 - Disclosure - Intangible Assets - Summary of Changes in Intangible Assets (Detail) Network

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969 Disclosure of detailed information about intangible assets [table] Table

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970 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
971 Intangible assets other than goodwill [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
972 Software [member] Member ifrs-full:ComputerSoftwareMember
973 Mining rights [member] Member ifrs-full:MiningRightsMember
974 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
975 Carrying amount [member] Member ifrs-full:CarryingAmountMember
976 Gross carrying amount [member] Member ifrs-full:GrossCarryingAmountMember
977 Accumulated depreciation and amortisation [member] Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
978 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
979 Balances as of January 1, 2016 Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
980 Effect of foreign currency Exchange differences Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill
981 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
982 Business combination under common control (Note 16) Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
983 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsIntangibleAssetsOtherThanGoodwill
984 Amortization Concept (Monetary) For Period ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill
985 Balances as of December 31, 2016 Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
986 1111 - Disclosure - Investments- Summary of Investments (Detail) Network

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987 Disclosure of detailed information about investment property [table] Table

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988 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
989 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
990 Yguaz Cementos S.A. [member] Member loma:YguazuCementosSAMember
991 Currency [Axis] Axis us-gaap:CurrencyAxis
992 All Currencies [Domain] Member currency:AllCurrenciesDomain
993 In Argentina Pesos [member] Member currency:ARS
994 In US Dollars [member] Member currency:USD
995 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
996 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
997 InterCement Brasil S.A. [member] Member loma:InterCementBrasilSAMember
998 Disclosure of detailed information about investment property [line items] LineItems ifrs-full:DisclosureOfInvestmentPropertyLineItems
999 Non-current Concept (Monetary) As Of Debit loma:NoncurrentInvestments
1000 In other companies Cementos del Plata S.A. Concept (Monetary) For Period Credit loma:InvestmentInJointVenture
1001 Total Concept (Monetary) As Of Debit ifrs-full:InvestmentProperty
1002 Total Concept (Monetary) For Period Credit loma:ShareOfProfitLossesOfJointVentures
1003 In foreign currency Concept (Monetary) As Of Debit ifrs-full:ShorttermInvestmentsClassifiedAsCashEquivalents
1004 Loans to related parties - InterCement Brasil S:A. (Note 19) Concept (Monetary) For Period Credit ifrs-full:CashAdvancesAndLoansMadeToRelatedParties
1005 Total Concept (Monetary) As Of Debit ifrs-full:CurrentInvestments
1006 1112 - Disclosure - Investments- Summary of Investments (Parenthetical) (Detail) Network

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1007 Disclosure of detailed information about investment property [table] Table

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1008 Currency [Axis] Axis us-gaap:CurrencyAxis
1009 All Currencies [Domain] Member currency:AllCurrenciesDomain
1010 In Argentina Pesos [member] Member currency:ARS
1011 In US Dollars [member] Member currency:USD
1012 In Guarani [member] Member currency:PYG
1013 Investment Type [Axis] Axis us-gaap:InvestmentTypeAxis
1014 Investments [Domain] Member us-gaap:InvestmentTypeCategorizationMember
1015 Bonds [member] Member us-gaap:BondsMember
1016 Mutual funds [member] Member loma:MutualFundsMember
1017 Disclosure of detailed information about investment property [line items] LineItems ifrs-full:DisclosureOfInvestmentPropertyLineItems
1018 Short-term investments Concept (Monetary) As Of Debit ifrs-full:ShorttermInvestmentsClassifiedAsCashEquivalents
1019 Accrued interest annual nominal rate Concept (Percent) For Period loma:AccruedInterestAnnualNominalRate
1020 1113 - Disclosure - Investments- Additional Information (Detail) Network

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1021 Disclosure of detailed information about investment property [table] Table

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1022 Range [axis] Axis ifrs-full:RangeAxis
1023 Ranges [member] Member ifrs-full:RangesMember
1024 Bottom of Range [member] Member ifrs-full:BottomOfRangeMember
1025 Top of Range [member] Member ifrs-full:TopOfRangeMember
1026 Disclosure of detailed information about investment property [line items] LineItems ifrs-full:DisclosureOfInvestmentPropertyLineItems
1027 Short term investment period Concept (xbrli:durationItemType) For Period loma:ShortTermInvestmentPeriod
1028 1114 - Disclosure - Business Combination Under Common Control - Summary of Business Combination (Detail) Network

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1029 Disclosure of detailed information about business combination [table] Table

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1030 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1031 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1032 Yguaz Cementos S.A. [member] Member loma:YguazuCementosSAMember
1033 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
1034 Principal Activity Concept (Text/String) For Period ifrs-full:DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities
1035 Principal place of business Concept (Text/String) For Period ifrs-full:PrincipalPlaceOfBusiness
1036 Proportion of ownership interest/voting right held by the Group Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
1037 1115 - Disclosure - Business Combination Under Common Control - Additional Information (Detail) Network

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1038 Disclosure of detailed information about business combination [table] Table

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1039 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1040 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1041 Yguaz Cementos S.A. [member] Member loma:YguazuCementosSAMember
1042 InterCement Brasil S.A. [member] Member loma:InterCementBrasilSAMember
1043 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1044 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1045 Subsidiaries [member] Member ifrs-full:SubsidiariesMember
1046 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
1047 Business acquisition number of shares acquired Concept (Decimal) As Of ifrs-full:NumberOfInstrumentsOrInterestsIssuedOrIssuable
1048 Percentage of subscribed and paid-in share capital acquired Concept (Percent) For Period loma:PercentageOfSubscribedAndPaidinShareCapitalAcquired
1049 Nominal value per share acquired Concept (Share) As Of ifrs-full:ParValuePerShare
1050 Business acquisition transaction amount Concept (Monetary) As Of Credit ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred
1051 Transaction amount settled with loan proceeds Concept (Monetary) For Period Debit loma:TransactionAmountSettledWithLoanProceeds
1052 Acquisition costs Concept (Monetary) For Period Debit loma:AcquisitionRelatedCosts
1053 Proportion of ownership interest held Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
1054 Contingent consideration Concept (Monetary) As Of Credit ifrs-full:LiabilitiesIncurred
1055 Share of profit (loss) of associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
1056 Business acquisition percentage of ownership interests acquired Concept (Percent) As Of loma:PercentageOfEquityInterestAcquired
1057 Purchases of additional share acquired Concept (Percent) For Period loma:PurchasesOfAdditionalShareAcquired
1058 Business acquisition percentage of ownership interests acquired, assumed beginning of the annual reporting period Concept (Percent) As Of loma:PercentageOfVotingEquityInterestsAcquiredCombinedEntity
1059 Increase in additional profit acquired Concept (Monetary) For Period Credit loma:IncreaseDecreaseInProfitLossOfCombinedEntity
1060 Additional profit acquired Concept (Monetary) For Period Credit ifrs-full:ProfitLossOfCombinedEntity
1061 Increase in revenue Concept (Monetary) For Period Credit loma:IncreaseDecreaseInRevenueOfCombinedEntity
1062 Net revenue Concept (Monetary) For Period Credit ifrs-full:RevenueOfCombinedEntity
1063 Non-controlling interest Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate
1064 1116 - Disclosure - Business Combination Under Common Control - Transactions Recognised Separately from Acquisition of Assets and Assumption of Liabilities in Business Combination (Detail) Network

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 http://imetrix.edgar-online.com/taxonomy/role/DisclosureBusinessCombinationUnderCommonControlTransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination
1065 Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [table] Table

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1066 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
1067 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
1068 Yguaz Cementos S.A. [member] Member loma:YguazuCementosSAMember
1069 Disclosure of transactions recognised separately from acquisition of assets and assumption of liabilities in business combination [line items] LineItems ifrs-full:DisclosureOfTransactionsRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombinationLineItems
1070 Inventories Concept (Monetary) As Of Debit ifrs-full:InventoryRecognisedAsOfAcquisitionDate
1071 Trade accounts receivable Concept (Monetary) As Of Debit loma:TradeAndOtherCurrentReceivablesNetRecognisedAsOfAcquisitionDate
1072 Other receivables Concept (Monetary) As Of Debit loma:OtherReceivablesCurrentRecognisedAsOfAcquisitionDate
1073 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalentsRecognisedAsOfAcquisitionDate
1074 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate
1075 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IdentifiableIntangibleAssetsRecognisedAsOfAcquisitionDate
1076 Trade accounts receivable Concept (Monetary) As Of Debit loma:TradeAndOtherNonCurrentReceivablesNetRecognisedAsOfAcquisitionDate
1077 Other receivables Concept (Monetary) As Of Debit loma:OtherReceivableNoncurrentRecognisedAsOfAcquisitionDate
1078 Trade and other payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayablesRecognisedAsOfAcquisitionDate
1079 Borrowings Concept (Monetary) As Of Credit ifrs-full:BorrowingsRecognisedAsOfAcquisitionDate
1080 Payroll and social security payables Concept (Monetary) As Of Credit loma:PayrollAndSocialSecurityPayablesRecognisedAsOfAcquisitionDate
1081 Tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate
1082 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeRecognisedAsOfAcquisitionDate
1083 Net Assets Concept (Monetary) As Of Debit ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed
1084 1117 - Disclosure - Business Combination Under Common Control - Summary of Cash Generated by Acquisition of Subsidiaries (Detail) Network

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1085 Disclosure Of Cash Generated By Acquisition Of Subsidiaries [Table] Table

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 loma:DisclosureOfCashGeneratedByAcquisitionOfSubsidiariesTable
1086 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1087 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1088 Subsidiaries [member] Member ifrs-full:SubsidiariesMember
1089 Disclosure Of Cash Generated By Acquisition Of Subsidiaries [line items] LineItems loma:DisclosureOfCashGeneratedByAcquisitionOfSubsidiariesLineItems
1090 Consideration paid in cash Concept (Monetary) For Period Credit ifrs-full:ConsiderationPaidReceived
1091 Less: Cash and cash equivalents acquired Concept (Monetary) For Period Debit ifrs-full:CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013
1092 Net cash received from acquisition of subsidiaries Concept (Monetary) For Period Credit loma:PaymentsForAcquisitionsNetOfCashAcquired
1093 Consideration (Note 31) Concept (Monetary) As Of Credit ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred
1094 Plus: Previous equity interest Concept (Monetary) As Of Credit loma:PreviousEquityInterest
1095 Plus: Non-controlling interest Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterestInAcquireeRecognisedAtAcquisitionDate
1096 Less: Net assets at book value Concept (Monetary) As Of Debit ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed
1097 Other capital adjustments Concept (Monetary) As Of Credit ifrs-full:OtherEquityInterest
1098 1118 - Disclosure - Goodwill - Summary of Goodwill (Detail) Network

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 http://imetrix.edgar-online.com/taxonomy/role/DisclosureGoodwillSummaryOfGoodwill
1099 Disclosure of information for cash-generating units [table] Table

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1100 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1101 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1102 Cofesur S.A. [member] Member loma:CofesurSAMember
1103 Recycomb S.A.U. [member] Member loma:RecycombSAUMember
1104 La Preferida de Olavarria S.A. [member] Member loma:LaPreferidaDeOlavarraSAMember
1105 Disclosure of information for cash-generating units [line items] LineItems ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems
1106 Total Concept (Monetary) As Of Debit ifrs-full:Goodwill
1107 1119 - Disclosure - Goodwill - Summary of Goodwill Allocated to Cash Generating Units (Detail) Network

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1108 Disclosure of information for cash-generating units [table] Table

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*

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1109 Cash-generating units [axis] Axis ifrs-full:IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis
1110 Entity's total for cash-generating units [member] Member ifrs-full:EntitysTotalForCashgeneratingUnitsMember
1111 Railroad [member] Member loma:RailroadCashGeneratingUnitMember
1112 Aggregates [member] Member ifrs-full:AggregateNotSignificantIndividualAssetsOrCashgeneratingUnitsMember
1113 Others [member] Member loma:OtherCashGeneratingUnitMember
1114 Disclosure of information for cash-generating units [line items] LineItems ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems
1115 Total Concept (Monetary) As Of Debit ifrs-full:Goodwill
1116 1120 - Disclosure - Inventories - Summary of Inventories (Detail) Network

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*

 http://imetrix.edgar-online.com/taxonomy/role/DisclosureInventoriesSummaryOfInventories
1117 Implied Table Table

*

*

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1118 Classes of current inventories [abstract] Abstract ifrs-full:ClassesOfInventoriesAbstract
1119 Spare parts Concept (Monetary) As Of Debit loma:NonCurrentSpareParts
1120 Allowance for obsolete inventories Concept (Monetary) As Of Credit loma:AllowanceForObsolescenceInventory
1121 Total Concept (Monetary) As Of Debit ifrs-full:NoncurrentInventories
1122 Finished products Concept (Monetary) As Of Debit ifrs-full:FinishedGoods
1123 Products in progress Concept (Monetary) As Of Debit ifrs-full:WorkInProgress
1124 Raw materials, materials and spare parts Concept (Monetary) As Of Debit ifrs-full:CurrentRawMaterialsAndCurrentProductionSupplies
1125 Inventory in transit Concept (Monetary) As Of Debit ifrs-full:CurrentInventoriesInTransit
1126 Fuels Concept (Monetary) As Of Debit ifrs-full:CurrentFuel
1127 Total Concept (Monetary) As Of Debit ifrs-full:Inventories
1128 1121 - Disclosure - Parent Company, Other Shareholders, Associates and Other Related Parties Balances and Transactions - Schedule of Outstanding Balances Between the Group and the Parent Company, Other Shareholders, Associates and Other Related Parties (Detail) Network

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1129 Disclosure of transactions between related parties [table] Table

*

*

 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1130 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1131 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1132 InterCement Brasil S.A. [member] Member loma:InterCementBrasilSAMember
1133 Camargo Correa S.A. [member] Member loma:CamargoCorreasaMember
1134 CCCimentos Participacoes LTDA [member] Member loma:CCCimentosParticipacoesLtdaMember
1135 Cimpor Trading e Inversiones S.A. [member] Member loma:CimporTradingeInversionesSAMember
1136 Cimpor Servicios de Apoio a Gestao S.A. [member] Member loma:CimporServiciosdeApoioaGestaoSAMember
1137 Cimpor-Cimentos de Portugal, SGPS, S.A. [member] Member loma:CimporCimentosdePortugalSgpssaMember
1138 Sacopor S.A. [member] Member loma:SacoporSAMember
1139 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1140 Loans (investment) Concept (Monetary) As Of Debit loma:LoansReceivableRelatedPartyTransactions
1141 Trade accounts receivable Concept (Monetary) As Of Debit ifrs-full:AmountsReceivableRelatedPartyTransactions
1142 Other receivables Concept (Monetary) As Of Debit loma:AmountsOtherReceivableRelatedPartyTransactions
1143 Other liabilities - Dividends payable Concept (Monetary) As Of Credit loma:DividendsPayableRelatedPartyTransactions
1144 Accounts payable Concept (Monetary) As Of Credit ifrs-full:AmountsPayableRelatedPartyTransactions
1145 1122 - Disclosure - Parent Company, Other Shareholders, Associates and Other Related Parties Balances and Transactions - Summary of Balances of Related Party Transactios (Detail) Network

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*

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1146 Implied Table Table

*

*

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1147 Outstanding balances for related party transactions [abstract] Abstract ifrs-full:OutstandingBalancesForRelatedPartyTransactionsAbstract
1148 Loans (investment) Concept (Monetary) As Of Debit loma:LoansReceivableRelatedPartyTransactions
1149 Trade accounts receivable Concept (Monetary) As Of Debit ifrs-full:AmountsReceivableRelatedPartyTransactions
1150 Other receivables Concept (Monetary) As Of Debit loma:AmountsOtherReceivableRelatedPartyTransactions
1151 Accounts payable Concept (Monetary) As Of Credit ifrs-full:AmountsPayableRelatedPartyTransactions
1152 Other liabilities - Dividends payable Concept (Monetary) As Of Credit loma:DividendsPayableRelatedPartyTransactions
1153 1123 - Disclosure - Parent Company, Other Shareholders, Associates and Other Related Parties Balances and Transactions - Disclosure of Transactions Between the Group and Parent Companies, Associates and Related Parties (Detail) Network

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*

 http://imetrix.edgar-online.com/taxonomy/role/DisclosureParentCompanyOtherShareholdersAssociatesAndOtherRelatedPartiesBalancesAndTransactionsDisclosureOfTransactionsBetweenTheGroupAndParentCompaniesAssociatesAndRelatedPar_Xa
1154 Disclosure of transactions between related parties [table] Table

*

*

 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1155 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
1156 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1157 Yguaz Cementos S.A. [member] Member loma:YguazuCementosSAMember
1158 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1159 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1160 InterCement Brasil S.A. [member] Member loma:InterCementBrasilSAMember
1161 Cimpor Trading e Inversiones S.A. [member] Member loma:CimporTradingeInversionesSAMember
1162 Cimpor Servicios de Apoio a Gestao S.A. [member] Member loma:CimporServiciosdeApoioaGestaoSAMember
1163 Sacopor S.A. [member] Member loma:SacoporSAMember
1164 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1165 Interest and Exchange rate differences Concept (Monetary) For Period Credit loma:InterestAndExchangeRateDifferencesRelatedPartyTransactions
1166 Sale/(Purchase) of Goods and Services Concept (Monetary) For Period Debit ifrs-full:PurchasesOfGoodsRelatedPartyTransactions
1167 Sale/(Purchase) of Goods and Services Concept (Monetary) For Period Credit ifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions
1168 1124 - Disclosure - Parent Company, Other Shareholders, Associates and Other Related Parties Balances and Transactions - Disclosure of Transactions Between the Group and Parent Companies, Associates and Related Parties (Parenthetical) (Detail) Network

*

*

 http://imetrix.edgar-online.com/taxonomy/role/DisclosureParentCompanyOtherShareholdersAssociatesAndOtherRelatedPartiesBalancesAndTransactionsDisclosureOfTransactionsBetweenTheGroupAndParentCompaniesAssociatesAndRelatedPar_XaParenthetical
1169 Disclosure of transactions between related parties [table] Table

*

*

 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1170 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1171 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1172 InterCement Brasil S.A. [member] Member loma:InterCementBrasilSAMember
1173 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1174 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1175 Yguaz Cementos S.A. [member] Member loma:YguazuCementosSAMember
1176 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
1177 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1178 Yguaz Cementos S.A. [member] Member loma:YguazuCementosSAMember
1179 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1180 Interest payable Concept (Monetary) As Of Credit ifrs-full:InterestPayable
1181 Interest accrued Concept (Monetary) As Of Debit ifrs-full:InterestReceivable
1182 Percentage of interest accrued Concept (Percent) As Of loma:PercentageOfInterestAccrued
1183 Annual interest rate Concept (Percent) For Period loma:AnnualInterestRates
1184 Percentage of interest acquired Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
1185 Percentage of charge equivalent to net sales for service received Concept (Percent) For Period loma:ServiceFeeAsPercentageOfConsolidatedNetRevenue
1186 Consideration transferred Concept (Monetary) As Of Credit ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred
1187 1125 - Disclosure - Parent Company, Other Shareholders, Associates and Other Related Parties Balances and Transactions - Disclosure of Dividend (Detail) Network

*

*

 http://imetrix.edgar-online.com/taxonomy/role/DisclosureParentCompanyOtherShareholdersAssociatesAndOtherRelatedPartiesBalancesAndTransactionsDisclosureOfDividend
1188 Disclosure of transactions between related parties [table] Table

*

*

 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1189 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1190 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1191 InterCement Brasil S.A. [member] Member loma:InterCementBrasilSAMember
1192 CCCimentos Participacoes LTDA [member] Member loma:CCCimentosParticipacoesLtdaMember
1193 Third parties [member] Member loma:ThirdPartiesMember
1194 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1195 Dividends approved Concept (Monetary) For Period Debit ifrs-full:DividendsPaidOrdinaryShares
1196 1126 - Disclosure - Parent Company, Other Shareholders, Associates and Other Related Parties Balances and Transactions - Additional Information (Detail) Network

*

*

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1197 Implied Table Table

*

*

 implied:Table
1198 Related party transactions [abstract] Abstract ifrs-full:RelatedPartyTransactionsAbstract
1199 Key Management fees Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
1200 1127 - Disclosure - Other Receivables - Summary of Other Receivables (Detail) Network

*

*

 http://imetrix.edgar-online.com/taxonomy/role/DisclosureOtherReceivablesSummaryOfOtherReceivables
1201 Implied Table Table

*

*

 implied:Table
1202 Trade and other receivables [abstract] Abstract ifrs-full:TradeAndOtherReceivablesAbstract
1203 Non-current Abstract ifrs-full:NoncurrentReceivablesAbstract
1204 Tax credits Concept (Monetary) As Of Debit loma:TaxCreditsOtherReceivablesNonCurrent
1205 Other receivables to Canon - Ferrosur Roca S.A. (Note 37) Concept (Monetary) As Of Debit loma:OtherReceivablesToRelatedPartyNonCurrent
1206 Advance payment for acquisition of shares (Note 19) Concept (Monetary) As Of Debit loma:AdvancePaymentForAcquisitionOfSharesNonCurrent
1207 Advances to suppliers Concept (Monetary) As Of Credit ifrs-full:NoncurrentAdvances
1208 Guarantee deposits Concept (Monetary) As Of Debit loma:OtherGuaranteeDepositsNonCurrent
1209 Miscellaneous Concept (Monetary) As Of Debit loma:MiscellaneousOtherReceivablesNonCurrent
1210 Total Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentReceivables
1211 Current Abstract ifrs-full:TradeAndOtherCurrentReceivablesAbstract
1212 Tax credits Concept (Monetary) As Of Debit loma:TaxCreditsOtherReceivablesCurrent
1213 Related parties receivables (Note 19) Concept (Monetary) As Of Debit loma:OtherCurrentReceivablesDueFromRelatedParties
1214 Prepaid expenses Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaidExpenses
1215 Guarantee deposits Concept (Monetary) As Of Debit loma:OtherGuaranteeDepositsCurrent
1216 Reimbursement receivables Concept (Monetary) As Of Debit loma:OtherReimbursementReceivablesCurrent
1217 Advances to suppliers Concept (Monetary) As Of Debit ifrs-full:CurrentAdvancesToSuppliers
1218 Salaries advances and loans to employees Concept (Monetary) As Of Debit loma:SalariesAdvancesAndLoansToEmployeesCurrent
1219 Receivables from sales of Property, plant and equipment Concept (Monetary) As Of Debit loma:ReceivablesFromSalesOfPropertyPlantAndEquipmentCurrent
1220 Miscellaneous Concept (Monetary) As Of Debit loma:MiscellaneousOtherReceivablesCurrent
1221 Total Concept (Monetary) As Of Debit ifrs-full:OtherCurrentReceivables
1222 1128 - Disclosure - Other Receivables - Summary of Other Receivables (Parenthetical) (Detail) Network

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*

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1223 Disclosure of Other Receivables [Table] Table

*

*

 loma:DisclosureOfOtherReceivablesTable
1224 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1225 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1226 Cofesur S.A. [member] Member loma:CofesurSAMember
1227 Disclosure of other receivables [line items] LineItems loma:DisclosureOfOtherReceivablesLineItems
1228 Number of shares acquired Concept (Shares) As Of loma:NumberOfSharesAcquired
1229 Interest acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
1230 1129 - Disclosure - Trade Accounts Receivable - Summary of Trade Accounts Receivables (Detail) Network

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*

 http://imetrix.edgar-online.com/taxonomy/role/DisclosureTradeAccountsReceivableSummaryOfTradeAccountsReceivables
1231 Implied Table Table

*

*

 implied:Table
1232 Trade and other receivables [abstract] Abstract ifrs-full:TradeAndOtherReceivablesAbstract
1233 Receivables with U.E.P.F.P. - Ferrosur Roca S.A. (Note 38) Concept (Monetary) As Of Debit loma:NonCurrentReceivableFromRailwayProgram
1234 Accounts receivable Concept (Monetary) As Of Debit loma:NoncurrentAccountsReceivable
1235 Total Concept (Monetary) As Of Debit ifrs-full:NoncurrentTradeReceivables
1236 Accounts receivable Concept (Monetary) As Of Debit loma:CurrentAccountsReceivable
1237 Related parties (Note 19) Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivablesDueFromRelatedParties
1238 Receivable with U.E.P.F.P. - Ferrosur Roca S.A. (Note 38) Concept (Monetary) As Of Debit loma:CurrentReceivableFromRailwayProgram
1239 Accounts receivable in litigation Concept (Monetary) As Of Debit loma:CurrentAccountsReceivableInLitigation
1240 Notes receivables Concept (Monetary) As Of Credit ifrs-full:CurrentNotesAndDebenturesIssuedAndCurrentPortionOfNoncurrentNotesAndDebenturesIssued
1241 Foreign customers Concept (Monetary) As Of Debit loma:CurrentTradeReceivablesFromForeignCustomers
1242 Subtotal Concept (Monetary) As Of Debit loma:CurrentTradeReceivablesGross
1243 Allowance for doubtful accounts Concept (Monetary) As Of Credit loma:AllowanceForDoubtfulAccountsReceivableCurrent1
1244 Total Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
1245 1130 - Disclosure - Trade Accounts Receivable - Additional Information (Detail) Network

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*

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1246 Disclosure Of Trade Accounts Receivables [Table] Table

*

*

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1247 Classes of acquired receivables [axis] Axis ifrs-full:ClassesOfAcquiredReceivablesAxis
1248 Classes of acquired receivables [member] Member ifrs-full:ClassesOfAcquiredReceivablesMember
1249 Cement business [member] Member loma:CementBusinessMember
1250 Concrete business [member] Member loma:ConcreteBusinessMember
1251 Disclosure of trade accounts receivables [line items] LineItems loma:DisclosureOfTradeAccountsReceivablesLineItems
1252 Average credit period Concept (xbrli:durationItemType) For Period loma:CreditPeriods
1253 1131 - Disclosure - Trade Accounts Receivable - Summary of Maturities of Accounts Receivable (Detail) Network

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*

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1254 Disclosure of Accounts receivable [Table] Table

*

*

 loma:DisclosureOfAccountsReceivableTable
1255 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
1256 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
1257 Trade receivables [member] Member ifrs-full:TradeReceivablesMember
1258 Impairment of financial assets [axis] Axis ifrs-full:ImpairmentOfFinancialAssetsAxis
1259 Entity's total for impairment of financial assets [member] Member ifrs-full:EntitysTotalForImpairmentOfFinancialAssetsMember
1260 To become due [member] Member ifrs-full:FinancialAssetsNeitherPastDueNorImpairedMember
1261 Past due status [axis] Axis ifrs-full:PastDueStatusAxis
1262 Past due status [member] Member ifrs-full:PastDueStatusMember
1263 0 to 30 days [member] Member ifrs-full:CurrentMember
1264 31 to 60 days [member] Member ifrs-full:LaterThanOneMonthAndNotLaterThanTwoMonthsMember
1265 61 to 90 days [member] Member ifrs-full:LaterThanTwoMonthsAndNotLaterThanThreeMonthsMember
1266 More than 91 days [member] Member ifrs-full:LaterThanThreeMonthsMember
1267 Disclosure of accounts receivable [line items] LineItems loma:DisclosureOfAccountsReceivableLineItems
1268 Financial assets Concept (Monetary) As Of Debit ifrs-full:FinancialAssets
1269 1132 - Disclosure - Trade Accounts Receivable - Summary of Financial Assets That Are Either Past Due or Impaired (Detail) Network

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1270 Disclosure of financial assets that are either past due or impaired [table] Table

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*

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1271 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
1272 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
1273 Trade receivables [member] Member ifrs-full:TradeReceivablesMember
1274 Impairment of financial assets [axis] Axis ifrs-full:ImpairmentOfFinancialAssetsAxis
1275 Entity's total for impairment of financial assets [member] Member ifrs-full:EntitysTotalForImpairmentOfFinancialAssetsMember
1276 Financial assets past due but not impaired [member] Member ifrs-full:FinancialAssetsPastDueButNotImpairedMember
1277 Financial assets impaired [member] Member ifrs-full:FinancialAssetsImpairedMember
1278 Past due status [axis] Axis ifrs-full:PastDueStatusAxis
1279 Past due status [member] Member ifrs-full:PastDueStatusMember
1280 More than 91 days [member] Member ifrs-full:LaterThanThreeMonthsMember
1281 0 to 30 days [member] Member ifrs-full:CurrentMember
1282 31 to 60 days [member] Member ifrs-full:LaterThanOneMonthAndNotLaterThanTwoMonthsMember
1283 61 to 90 days [member] Member ifrs-full:LaterThanTwoMonthsAndNotLaterThanThreeMonthsMember
1284 Disclosure of financial assets that are either past due or impaired [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsThatAreEitherPastDueOrImpairedLineItems
1285 Financial assets Concept (Monetary) As Of Debit ifrs-full:FinancialAssets
1286 Average age Concept (Decimal) For Period loma:AverageCollectionPeriodOfTradeReceivables
1287 1133 - Disclosure - Trade Accounts Receivable - Summary of Changes in Allowance for Doubtful Accounts (Detail) Network

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1288 Disclosure of financial assets [table] Table

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1294 Effect of foreign currency exchange difference Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesAllowanceAccountForCreditLossesOfFinancialAssets
1295 Increases Concept (Monetary) For Period ifrs-full:AdditionalAllowanceRecognisedInProfitOrLossAllowanceAccountForCreditLossesOfFinancialAssets
1296 Business combination (Note 16) Concept (Monetary) For Period Credit loma:BusinessCombinationAllowanceForDoubtfulAccounts
1297 Uses Concept (Monetary) For Period Debit ifrs-full:UtilisationAllowanceAccountForCreditLossesOfFinancialAssets
1298 Ending balance Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
1299 1134 - Disclosure - Cash and Banks - Schedule of Cash and Banks (Detail) Network

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1300 Cash And Cash Equivalents [Table] Table

*

*

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1304 In US Dollars [member] Member currency:USD
1305 In Reales [member] Member currency:BRL
1306 In Guarani [member] Member currency:PYG
1307 In Euros [member] Member currency:EUR
1308 Disclosure of cash and cash equivalents [line items] LineItems loma:DisclosureOfCashAndCashEquivalentsLineItems
1309 Cash and banks Concept (Monetary) As Of Debit ifrs-full:Cash
1310 1135 - Disclosure - Capital Stock and Other Capital Related Accounts - Summary of Capital Stock and Other Capital Related Accounts (Detail) Network

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1311 Implied Table Table

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*

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1314 Adjustment to capital Concept (Monetary) As Of Credit ifrs-full:AdditionalPaidinCapital
1315 Share premium Concept (Monetary) As Of Credit ifrs-full:SharePremium
1316 Other capital adjustments (Note 16) Concept (Monetary) As Of Credit ifrs-full:OtherEquityInterest
1317 Merger premium Concept (Monetary) As Of Credit loma:MergerPremium
1318 Total Concept (Monetary) As Of Credit loma:CapitalStockAndOtherCapitalRelatedAccounts
1319 1136 - Disclosure - Capital Stock and Other Capital Related Accounts - Summary of Issued, Paid-in and Registered Capital (Detail) Network

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1320 Implied Table Table

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1321 Disclosure of capital stock and other capital related accounts [abstract] Abstract loma:DisclosureOfCapitalStockAndOtherCapitalRelatedAccountsAbstract
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1323 1137 - Disclosure - Capital Stock and Other Capital Related Accounts - Summary of Issued, Paid-in and Registered Capital (Parenthetical) (Detail) Network

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1324 Implied Table Table

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1325 Disclosure of capital stock and other capital related accounts [abstract] Abstract loma:DisclosureOfCapitalStockAndOtherCapitalRelatedAccountsAbstract
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1327 Number of votes per share Concept (Integer) For Period loma:NumberOfVotesPerShare
1328 1138 - Disclosure - Capital Stock and Other Capital Related Accounts - Additional Information (Detail) Network

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1329 Disclosure of capital stock and other capital related accounts [Table] Table

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*

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1332 Cofesur S.A. [member] Member loma:CofesurSAMember
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1336 International Offer [member] Member loma:InternationalOfferMember
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1339 American Depository Scheme [member] Member loma:AmericanDepositorySchemeMember
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1344 Number of shares awarded Concept (Shares) As Of loma:NumberOfNewSharesAwarded
1345 Number of ordinary shares per ADS Concept (Decimal) For Period loma:NumberOfOrdinarySharesPerADS
1346 Subscription price per share Concept (Share) As Of loma:SubscriptionPricePerShare
1347 Proceeds from initial public offering, net of issuance costs Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
1348 Capital stock Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
1349 Number of common shares issued Concept (Shares) As Of ifrs-full:NumberOfSharesIssuedAndFullyPaid
1350 Interest acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
1351 1139 - Disclosure - Accumulated Other Comprehensive Income - Schedule of Accumulated Other Comprehensive Income (Detail) Network

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*

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1352 Disclosure of analysis of other comprehensive income by item [table] Table

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*

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1356 Reserve of change in value of foreign currency basis spreads [member] Member ifrs-full:ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember
1357 Disclosure of analysis of other comprehensive income by item [line items] LineItems ifrs-full:DisclosureOfAnalysisOfOtherComprehensiveIncomeByItemLineItems
1358 Balances at the beginning of the year Concept (Monetary) As Of Credit ifrs-full:AccumulatedOtherComprehensiveIncome
1359 Net change on revaluation of hedging instruments Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges
1360 Exchange differences of the year attributable to the owners of the Company Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
1361 Income tax related to gains/losses recognized in other comprehensive income Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnCashFlowHedgesNetOfTax
1362 Amounts reclassified to (profit) or loss Concept (Monetary) For Period Debit ifrs-full:ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax
1363 Income tax related to amounts reclassified to profit or loss Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLoss
1364 Ending balance Concept (Monetary) As Of Credit ifrs-full:AccumulatedOtherComprehensiveIncome
1365 1140 - Disclosure - Borrowings - Summary of Composition of Borrowings (Detail) Network

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*

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1366 Disclosure of detailed information about borrowings [table] Table

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*

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1369 US Dollar and Guarani [member] Member loma:UsDollarAndPgyMember
1370 In Argentina Pesos [member] Member currency:ARS
1371 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1372 Non-current Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
1373 Current Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
1374 Borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
1375 1141 - Disclosure - Borrowings - Summary of Detail Information of Borrowings (Detail) Network

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*

 http://imetrix.edgar-online.com/taxonomy/role/DisclosureBorrowingsSummaryOfDetailInformationOfBorrowings
1376 Disclosure of detailed information about borrowings [table] Table

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*

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1377 Types of interest rates [axis] Axis ifrs-full:TypesOfInterestRatesAxis
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1380 LIBOR plus 3.75 [member] Member loma:LIBORPlusThreePointSevenFivePercentageMember
1381 LIBOR plus 3.4 [member] Member loma:LIBORPlusThreePointFourPercentageMember
1382 LIBOR plus 2.9 [member] Member loma:LIBORPlusTwoPointNinePercentageMember
1383 LIBOR plus 3.5 [member] Member loma:LIBORPlusThreePointFivePercentageMember
1384 BADLAR plus 4% [member] Member loma:BadlarPlusFourPercentageMember
1385 BADLAR plus 2 % [member] Member loma:BadlarPlusTwoPercentageMember
1386 BADLAR corrected plus 1.65 % [member] Member loma:BadlarCorrectedPlusOnePointSixFivePercentageMember
1387 BADLAR corrected plus 0.5 % [member] Member loma:BadlarCorrectedPlusZeroPointFivePercentageMember
1388 BADLAR corrected plus 4 % [member] Member loma:BadlarCorrectedPlusFourPercentageMember
1389 BADLAR corrected plus 3.95 % [member] Member loma:BadlarCorrectedPlusThreePointNineFiveMember
1390 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1391 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1392 Ferrosur Roca S.A. [member] Member loma:FerrosurRocaSAMember
1393 Yguaz Cementos S.A. [member] Member loma:YguazuCementosSAMember
1394 Recycomb S.A.U. [member] Member loma:RecycombSAUMember
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1400 Banco Supervielle S.A. [member] Member loma:BancoSupervielleSAMember
1401 Banco Patagonia S.A. [member] Member loma:BancoPatagoniaSAMember
1402 Industrial And Commercial Bank Of China [member] Member loma:IndustrialAndCommercialBankOfChinaMember
1403 Itau Unibanco SA [member] Member loma:ItauUnibancoSaMember
1404 Interamerican Development Bank [member] Member loma:InteramericanDevelopmentBankMember
1405 Corporacin Andina de Fomento [member] Member loma:CorporacinAndinaDeFomentoMember
1406 Banco Continental S.A.E.C.A. [member] Member loma:BancoContinentalSAECAMember
1407 Sudameris Bank S.A.E.C.A. [member] Member loma:SudamerisBankSAECAMember
1408 Banco Ita S.A.- Paraguay [member] Member loma:BancoItaSAParaguayMember
1409 Banco Provincia de Buenos Aires [member] Member loma:BancoProvinciaDeBuenosAiresMember
1410 Banco Provincia de Buenos Aires One [member] Member loma:BancoProvinciaDeBuenosAiresOneMember
1411 Banco Provincia de Buenos Aires two [member] Member loma:BancoProvinciaDeBuenosAiresTwoMember
1412 Banco Provincia de Buenos Aires three [member] Member loma:BancoProvinciaDeBuenosAiresThreeMember
1413 HSBC Bank Argentina S.A [member] Member loma:HSBCBankArgentinaSAMember
1414 Banco Santander Rio S.A. [member] Member loma:BancoSantanderRioSAMember
1415 Syndicated bank loans [member] Member loma:SyndicatedBankLoansMember
1416 Bank overdrafts [member] Member loma:BankOverdrafts1Member
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1419 In US Dollars [member] Member currency:USD
1420 In Guarani [member] Member currency:PYG
1421 US Dollar and Guarani [member] Member loma:UsDollarAndPgyMember
1422 In Argentina Pesos [member] Member currency:ARS
1423 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1424 Borrowings interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
1425 Borrowings interest rate basis Concept (Text/String) For Period ifrs-full:BorrowingsInterestRateBasis
1426 Borrowings adjustment to interest rate basis Concept (Percent) As Of ifrs-full:BorrowingsAdjustmentToInterestRateBasis
1427 Due date Concept (Text/String) For Period ifrs-full:BorrowingsMaturity
1428 Amount Concept (Monetary) As Of Credit ifrs-full:Borrowings
1429 1142 - Disclosure - Borrowings - Additional Information - Loma Negra C.I.A.S.A. (Detail) Network

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1430 Disclosure of detailed information about borrowings [table] Table

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*

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1433 In Argentina Pesos [member] Member currency:ARS
1434 In US Dollars [member] Member currency:USD
1435 Consolidated Entities [Axis] Axis us-gaap:ConsolidatedEntitiesAxis
1436 Consolidated Entities [Domain] Member us-gaap:ConsolidatedEntitiesDomain
1437 Loma Negra C.I.A.S.A. [member] Member us-gaap:ParentCompanyMember
1438 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1439 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1440 Banco Provincia de Buenos Aires [member] Member loma:BancoProvinciaDeBuenosAiresMember
1441 Banco Patagonia S.A. [member] Member loma:BancoPatagoniaSAMember
1442 Banco Santander Rio S.A. [member] Member loma:BancoSantanderRioSAMember
1443 Banco Provincia de Buenos Aires One [member] Member loma:BancoProvinciaDeBuenosAiresOneMember
1444 Banco Provincia de Buenos Aires two [member] Member loma:BancoProvinciaDeBuenosAiresTwoMember
1445 Banco Provincia de Buenos Aires three [member] Member loma:BancoProvinciaDeBuenosAiresThreeMember
1446 Industrial And Commercial Bank Of China [member] Member loma:IndustrialAndCommercialBankOfChinaMember
1447 Banco Supervielle S.A. [member] Member loma:BancoSupervielleSAMember
1448 HSBC Bank Argentina S.A [member] Member loma:HSBCBankArgentinaSAMember
1449 Itau Unibanco SA [member] Member loma:ItauUnibancoSaMember
1450 Types of interest rates [axis] Axis ifrs-full:TypesOfInterestRatesAxis
1451 Interest rate types [member] Member ifrs-full:InterestRateTypesMember
1452 BADLAR plus 4% [member] Member loma:BadlarPlusFourPercentageMember
1453 BADLAR corrected plus 1.65 % [member] Member loma:BadlarCorrectedPlusOnePointSixFivePercentageMember
1454 BADLAR corrected plus 4 % [member] Member loma:BadlarCorrectedPlusFourPercentageMember
1455 BADLAR plus 2 % [member] Member loma:BadlarPlusTwoPercentageMember
1456 LIBOR plus 3.4 [member] Member loma:LIBORPlusThreePointFourPercentageMember
1457 Fixed interest rate [member] Member ifrs-full:FixedInterestRateMember
1458 LIBOR plus 3.75 [member] Member loma:LIBORPlusThreePointSevenFivePercentageMember
1459 LIBOR plus 2.9 [member] Member loma:LIBORPlusTwoPointNinePercentageMember
1460 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
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1464 Number of monthly installments Concept (Integer) For Period loma:NumberOfInstallmentsForLoanRepaymentMonthly
1465 Number of loan installments early repayment approved Concept (Integer) For Period loma:NumberOfLoanInstallmentsEarlyRepaymentApproved
1466 Debt forgiveness Concept (Monetary) For Period Debit loma:BorrowingsDecreaseForgiveness
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1469 Due date Concept (Date) For Period loma:BorrowingsMaturityDate
1470 Bank overdrafts Concept (Monetary) As Of Credit ifrs-full:BankOverdraftsClassifiedAsCashEquivalents
1471 1143 - Disclosure - Borrowings - Additional Information - Ferrosur Roca S.A. (Detail) Network

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*

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1472 Disclosure of detailed information about borrowings [table] Table

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*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
1473 Continuing involvement in derecognised financial assets by type of instrument [axis] Axis ifrs-full:ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentAxis
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1475 Guarantees [member] Member ifrs-full:GuaranteesMember
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1478 In Argentina Pesos [member] Member currency:ARS
1479 In US Dollars [member] Member currency:USD
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1481 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1482 Ferrosur Roca S.A. [member] Member loma:FerrosurRocaSAMember
1483 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1484 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1485 Syndicated bank loans [member] Member loma:SyndicatedBankLoansMember
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1487 HSBC Bank Argentina S.A [member] Member loma:HSBCBankArgentinaSAMember
1488 Types of interest rates [axis] Axis ifrs-full:TypesOfInterestRatesAxis
1489 Interest rate types [member] Member ifrs-full:InterestRateTypesMember
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1491 BADLAR corrected plus 0.5 % [member] Member loma:BadlarCorrectedPlusZeroPointFivePercentageMember
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1493 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
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1497 Final balloon payment to be paid Concept (Monetary) As Of Credit loma:BorrowingsPeriodicPaymentTermsBalloonPaymentToBePaid
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1499 Bank overdrafts Concept (Monetary) As Of Credit ifrs-full:BankOverdraftsClassifiedAsCashEquivalents
1500 1144 - Disclosure - Borrowings - Additional Information - Yguazu Cementos S.A. (Detail) Network

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 http://imetrix.edgar-online.com/taxonomy/role/DisclosureBorrowingsAdditionalInformationYguazuCementosSA
1501 Disclosure of detailed information about borrowings [table] Table

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*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
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1504 In Guarani [member] Member currency:PYG
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1510 Sudameris Bank S.A.E.C.A. [member] Member loma:SudamerisBankSAECAMember
1511 Banco Ita S.A.- Paraguay [member] Member loma:BancoItaSAParaguayMember
1512 Interamerican Development Bank [member] Member loma:InteramericanDevelopmentBankMember
1513 Corporacin Andina de Fomento [member] Member loma:CorporacinAndinaDeFomentoMember
1514 IDB and CAF [member] Member loma:IDBAndCAFMember
1515 Paraguayan banks [member] Member loma:ParaguayanBanksMember
1516 Banco Continental S.A.E.C.A. [member] Member loma:BancoContinentalSAECAMember
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1521 Prime rate plus 0.32 [member] Member loma:PrimeRatePlusZeroPointThreeTwoPercentageMember
1522 Prime rate plus 0.82 [member] Member loma:PrimeRatePlusZeroPointEightTwoPercentageMember
1523 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
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1527 Final balloon payment to be paid Concept (Monetary) As Of Credit loma:BorrowingsPeriodicPaymentTermsBalloonPaymentToBePaid
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1531 Borrowings adjustment to interest rate basis Concept (Percent) As Of ifrs-full:BorrowingsAdjustmentToInterestRateBasis
1532 Number of equal installments Concept (Integer) For Period loma:NumberOfInstallmentsForLoanRepayment
1533 1145 - Disclosure - Borrowings - Schedule of Movements of Borrowings (Detail) Network

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*

 http://imetrix.edgar-online.com/taxonomy/role/DisclosureBorrowingsScheduleOfMovementsOfBorrowings
1534 Disclosure of reconciliation of liabilities arising from financing activities [table] Table

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*

 ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable
1535 Liabilities arising from financing activities [axis] Axis ifrs-full:LiabilitiesArisingFromFinancingActivitiesAxis
1536 Liabilities arising from financing activities [member] Member ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember
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1539 Beginning balance Concept (Monetary) As Of Credit ifrs-full:LiabilitiesArisingFromFinancingActivities
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1542 Effect of foreign currency exchange differences Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities
1543 Effect of exchange rate differences Concept (Monetary) For Period Credit loma:IncreaseDecreaseExchangeRateDifferencesLiabilitiesArisingFromFinancingActivities
1544 Interest payments Concept (Monetary) For Period Debit loma:DecreaseThroughRepaymentsInterestLiabilitiesArisingFromFinancingActivities
1545 Principal payments Concept (Monetary) For Period Debit loma:DecreaseThroughRepaymentsPrincipalLiabilitiesArisingFromFinancingActivities
1546 Ending balance Concept (Monetary) As Of Credit ifrs-full:LiabilitiesArisingFromFinancingActivities
1547 1146 - Disclosure - Borrowings - Maturity Schedule of Long-term Loans (Detail) Network

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*

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1548 Disclosure of detailed information about borrowings [table] Table

*

*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
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1552 2020 [member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1553 2021 [member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1554 2022 and beyond [member] Member loma:LaterThanFourYearsMember
1555 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
1556 Borrowings Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
1557 1147 - Disclosure - Accounts Payable - Summary of Accounts Payable (Detail) Network

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*

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1558 Implied Table Table

*

*

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1562 Expense accrual Concept (Monetary) As Of Credit ifrs-full:AccrualsClassifiedAsNoncurrent
1563 Total Concept (Monetary) As Of Credit ifrs-full:NoncurrentPayables
1564 Current Abstract ifrs-full:TradeAndOtherCurrentPayablesAbstract
1565 Suppliers Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers
1566 Related parties (Note 19) Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToRelatedParties
1567 Accounts payable for acquisitions of Property, plant and equipment Concept (Monetary) As Of Credit ifrs-full:CurrentPayablesForPurchaseOfNoncurrentAssets
1568 Expenses accrual Concept (Monetary) As Of Credit ifrs-full:AccrualsClassifiedAsCurrent
1569 Total Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
1570 1148 - Disclosure - Provisions - Summary of Provisions (Detail) Network

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1571 Disclosure of other provisions [table] Table

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1574 Labor and social security [member] Member loma:LaborAndSocialSecurityMember
1575 Environmental restoration [member] Member ifrs-full:ProvisionForDecommissioningRestorationAndRehabilitationCostsMember
1576 Civil and others [member] Member ifrs-full:LegalProceedingsProvisionMember
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1578 Non current provisions Concept (Monetary) As Of Credit ifrs-full:NoncurrentProvisions
1579 1149 - Disclosure - Provisions - Summary of Changes in Provisions (Detail) Network

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1580 Disclosure of other provisions [table] Table

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1583 Labor and social security [member] Member loma:LaborAndSocialSecurityMember
1584 Environmental restoration [member] Member ifrs-full:ProvisionForDecommissioningRestorationAndRehabilitationCostsMember
1585 Civil and others [member] Member ifrs-full:LegalProceedingsProvisionMember
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1589 Uses Concept (Monetary) For Period Debit ifrs-full:ProvisionUsedOtherProvisions
1590 Ending balance Concept (Monetary) As Of Credit ifrs-full:NoncurrentProvisions
1591 1150 - Disclosure - Provisions - Additional Information (Detail) Network

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1592 Disclosure of other provisions [table] Table

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1595 Tax obligations [member] Member loma:TaxObligationsMember
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1597 Administrative obligation [member] Member loma:AdministrativeObligationMember
1598 Disclosure of other provisions [line items] LineItems ifrs-full:DisclosureOfOtherProvisionsLineItems
1599 Estimated amount of cash flow for uncertain contingencies Concept (Monetary) As Of Credit loma:EstimatedAmountOfCashflowForUncertainContingencies
1600 1151 - Disclosure - Tax Liabilities - Summary of Tax Liabilities (Detail) Network

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*

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1601 Disclosure Of Tax Liabilities [Table] Table

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1605 Income tax expense [member] Member loma:IncomeTaxExpenseMember
1606 Value added tax [member] Member loma:ValueAddedTaxMember
1607 Turnover tax [member] Member loma:TurnoverTaxMember
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1614 1152 - Disclosure - Other Liabilities - Disclosure of Other Liabilities (Detail) Network

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1615 Implied Table Table

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*

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1618 Total Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
1619 Termination payment plans Concept (Monetary) As Of Credit ifrs-full:CurrentProvisionsForEmployeeBenefits
1620 Dividends with minority shareholders Concept (Monetary) As Of Credit loma:DividendsPayableCurrent1
1621 Others Concept (Monetary) As Of Credit loma:OtherCurrentLiabilitiesOther
1622 Total Concept (Monetary) As Of Credit ifrs-full:OtherCurrentLiabilities
1623 1153 - Disclosure - Cash and Cash Equivalents - Disclosure of Detailed Information About Cash and Cash Equivalents (Detail) Network

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1624 Implied Table Table

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*

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1627 Short-term investments and others (Note 15) Concept (Monetary) As Of Debit ifrs-full:ShorttermInvestmentsClassifiedAsCashEquivalents
1628 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
1629 1154 - Disclosure - Non-cash Transactions - Summary of Non-cash Transactions (Detail) Network

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*

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1630 Implied Table Table

*

*

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1631 Disclosure Of Non Cash Transactions [Abstract] Abstract loma:DisclosureOfNonCashTransactionsAbstract
1632 Acquisition of Property, plant and equipment financed with trade payables Concept (Monetary) For Period Debit loma:NoncashAcquisitionFixedAssetsFinancedWithTradePayables
1633 Acquisition of 2.36% of interest in Cofesur S.A. Concept (Monetary) For Period Debit loma:NonCashAcquisitionAdvanceInvestmentToAdditionalEquity
1634 Acquisition of interest in Yguazú Cementos S.A. financed with the settlement of loans with related parties (note 16) Concept (Monetary) For Period Debit loma:NonCashAcquisitionOfInterestFinancedWithSettlementOfLoansWithRelatedParties
1635 Accounts payable settlement with amounts receivable under financial leasing Concept (Monetary) For Period Credit loma:NonCashAccountPayableSettlementWithAmountsReceivableUnderFinancialLeasing
1636 Settlement of receivable for acquisition of Property, plant and equipment Concept (Monetary) For Period Debit loma:NonCashSettlementOfReceivableForAcquisitionOfPropertyPlantAndEquipment
1637 1155 - Disclosure - Non-cash Transactions - Summary of Non-cash Transactions (Parenthetical) (Detail) Network

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1638 Disclosure of Significant Non Cash Transaction [Table] Table

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1642 Disclosure of significant non cash transaction [line items] LineItems loma:DisclosureOfSignificantNonCashTransactionLineItems
1643 Interest acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
1644 1156 - Disclosure - Segment Information - Summary of Segment Information (Detail) Network

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1645 Disclosure of operating segments [table] Table

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1653 Cement Segment [member] Member loma:CementSegmentMember
1654 Concrete Segment [member] Member loma:ConcreteSegmentMember
1655 Railroad segment [member] Member loma:RailroadSegmentMember
1656 Aggregates Segment [member] Member loma:AggregatesSegmentMember
1657 All other segments [member] Member ifrs-full:AllOtherSegmentsMember
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1661 Paraguay [member] Member country:PY
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1664 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
1665 Selling administrative expenses and other gains and losses Concept (Monetary) For Period Debit loma:SellingAdministrativeExpensesAndOtherGainsAndLosses
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1668 Share of profit (loss) of associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
1669 Tax on debits and credits banks accounts Concept (Monetary) For Period Debit loma:PaymentsToTaxPaidOnBankTransaction
1670 Finance costs, net Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
1671 Income tax Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1672 Total Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
1673 1157 - Disclosure - Segment Information - Summary of Geographical Information (Detail) Network

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1674 Disclosure of geographical areas [table] Table

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*

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1675 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
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1678 Paraguay [member] Member country:PY
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1680 Non current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
1681 1158 - Disclosure - Segment Information - Additional Information (Detail) Network

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*

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1682 Disclosure of operating segments [table] Table

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*

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1683 Segment consolidation items [axis] Axis ifrs-full:SegmentConsolidationItemsAxis
1684 Entity's total for segment consolidation items [member] Member ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
1685 Operating segments [member] Member ifrs-full:OperatingSegmentsMember
1686 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
1687 Percentage of entity's revenue Concept (Percent) For Period ifrs-full:PercentageOfEntitysRevenue
1688 Number of customers contributing more than ten percent of revenue Concept (Integer) For Period loma:NumberOfCustomersRepresentingTenPercentOrMoreOfSales
1689 1159 - Disclosure - Financial Instruments - Summary of Net Debt to Equity Ratio (Detail) Network

*

*

 http://imetrix.edgar-online.com/taxonomy/role/DisclosureFinancialInstrumentsSummaryOfNetDebtToEquityRatio
1690 Implied Table Table

*

*

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1691 Disclosure of net debt equity ratio [abstract] Abstract loma:DisclosureOfNetDebtEquityRatioAbstract
1692 Debt Concept (Monetary) As Of Credit ifrs-full:Borrowings
1693 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
1694 Net debt Concept (Monetary) As Of Credit ifrs-full:NetDebt
1695 Equity Concept (Monetary) As Of Credit ifrs-full:Equity
1696 Net debt to equity ratio Concept (Pure) For Period loma:NetDebtToEquityRatio
1697 1160 - Disclosure - Financial Instruments - Summary of Financial Instruments (Detail) Network

*

*

 http://imetrix.edgar-online.com/taxonomy/role/DisclosureFinancialInstrumentsSummaryOfFinancialInstruments
1698 Disclosure of detailed information about financial instruments [table] Table

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*

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1701 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
1702 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
1703 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
1704 Cash and banks Concept (Monetary) As Of Debit ifrs-full:Cash
1705 Fair value through profit or loss Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLoss
1706 Held to maturity investments Concept (Monetary) As Of Debit ifrs-full:HeldtomaturityInvestments
1707 Loans and receivables Concept (Monetary) As Of Debit ifrs-full:LoansAndReceivables
1708 Amortized cost Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilitiesAtAmortisedCost
1709 1161 - Disclosure - Financial Instruments - Summary of Monetary Assets and Liabilities Denominated in Foreign Currency (Detail) Network

*

*

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1710 Disclosure of detailed information about financial instruments [table] Table

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*

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1713 In US Dollars [member] Member currency:USD
1714 In Guarani [member] Member currency:PYG
1715 In Euros [member] Member currency:EUR
1716 In Reales [member] Member currency:BRL
1717 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
1718 Financial liabilities Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
1719 Financial assets Concept (Monetary) As Of Debit ifrs-full:FinancialAssets
1720 1162 - Disclosure - Financial Instruments - Additional Information (Detail) Network

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*

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1721 Disclosure Of Interest Rate Risk [table] Table

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*

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1725 LIBOR [Member] Member loma:LIBORMember
1726 Average interest rate [member] Member loma:AverageInterestRateMember
1727 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1728 Equity [member] Member ifrs-full:EquityMember
1729 Additional paid-in capital [member] Member ifrs-full:AdditionalPaidinCapitalMember
1730 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
1731 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
1732 Loan [member] Member loma:LoanMember
1733 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
1734 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
1735 Level 3 of fair value hierarchy [member] Member ifrs-full:Level3OfFairValueHierarchyMember
1736 Disclosure of interest rate risk [line items] LineItems loma:DisclosureOfInterestRateRiskLineItems
1737 Percentage of increase in foreign currency exchange rate Concept (Percent) For Period loma:PercentageOfIncreaseInForeignCurrencyExchangeRate
1738 Borrowing interest rate basis Concept (Percent) As Of ifrs-full:BorrowingsAdjustmentToInterestRateBasis
1739 Increase in financial expense Concept (Monetary) For Period Debit loma:AdjustmentsForFinancialExpenses
1740 Increase (decrease) in working capital Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInWorkingCapital
1741 Increased number of shares Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
1742 Increased capital Concept (Monetary) As Of Credit ifrs-full:AdditionalPaidinCapital
1743 Par value per share Concept (Share) As Of ifrs-full:ParValuePerShare
1744 Stock price Concept (Share) As Of loma:StockPricePerShare
1745 Estimated fair value of loans Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilities
1746 1163 - Disclosure - Financial Instruments - Disclosure of Foreign Currency Sensitivity Analysis - (Detail) Network

*

*

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1747 Disclosure Foreign Currency Sensitivity Analysis [Table] Table

*

*

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1750 US Dollar to Pesos [member] Member loma:UsDollarToPesosMember
1751 Guarani to Pesos [member] Member loma:GuaraniToPesosMember
1752 Disclosure foreign currency sensitivity analysis [line items] LineItems loma:DisclosureForeignCurrencySensitivityAnalysisLineItems
1753 Loss for the year Concept (Monetary) For Period Credit loma:GainsLossesOfForeignCurrencyExchangeDifferences
1754 Decrease in net equity Concept (Monetary) For Period Credit loma:IncreaseDecreaseInEquityThroughForeignCurrencyExchangeExposures
1755 1164 - Disclosure - Financial Instruments - Summary of Interest Rate Risk Management (Detail) Network

*

*

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1756 Disclosure Of Interest Rate Risk [table] Table

*

*

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1762 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
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1764 Disclosure of interest rate risk [line items] LineItems loma:DisclosureOfInterestRateRiskLineItems
1765 Held to maturity investments Concept (Monetary) As Of Debit ifrs-full:HeldtomaturityInvestments
1766 Fair value through profit or loss Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLoss
1767 Loans Concept (Monetary) As Of Debit ifrs-full:LoansAndReceivables
1768 Amortized cost Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilitiesAtAmortisedCost
1769 1165 - Disclosure - Financial Instruments - Schedule of Contractual Maturity for Non-derivative Financial Liabilities with Agreed Repayment Periods (Detail) Network

*

*

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1770 Disclosure of maturity analysis for non-derivative financial liabilities [table] Table

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*

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1772 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1773 Not later than 1 month [member] Member ifrs-full:NotLaterThanOneMonthMember
1774 1-3 months [member] Member ifrs-full:LaterThanOneMonthAndNotLaterThanThreeMonthsMember
1775 3 months to 1 year [member] Member ifrs-full:LaterThanThreeMonthsAndNotLaterThanOneYearMember
1776 1 to 3 years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanThreeYearsMember
1777 3-6 years [member] Member loma:LaterThanThreeYearsAndNotLaterThanSixYearsMember
1778 Range [axis] Axis ifrs-full:RangeAxis
1779 Ranges [member] Member ifrs-full:RangesMember
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1781 Disclosure of maturity analysis for non-derivative financial liabilities [line items] LineItems ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems
1782 Weighted average effective interest rate % Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
1783 Borrowings Concept (Monetary) As Of Credit ifrs-full:BankBorrowingsUndiscountedCashFlows
1784 Non-derivative financial liabilities Concept (Monetary) As Of Credit ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows
1785 1166 - Disclosure - Financial Instruments - Schedule of Financial Assets and Financial Liabilities are Measured at Fair Value on a Recurring Basis (Detail) Network

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1786 Disclosure of fair value measurement of assets [table] Table

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1790 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
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1793 Measurement [axis] Axis ifrs-full:MeasurementAxis
1794 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
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1799 Valuation technique(s) and key input(s) Concept (Text/String) For Period ifrs-full:DescriptionOfValuationTechniquesUsedInFairValueMeasurementAssets
1800 1167 - Disclosure - Guarantees Granted to Subsidiaries - Additional Information (Detail) Network

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1801 Disclosure of detailed information about borrowings [table] Table

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*

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1802 Continuing involvement in derecognised financial assets by type of instrument [axis] Axis ifrs-full:ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentAxis
1803 Types of instrument [member] Member ifrs-full:TypesOfInstrumentMember
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1807 In Argentina Pesos [member] Member currency:ARS
1808 In US Dollars [member] Member currency:USD
1809 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1810 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1811 Ferrosur Roca S.A. [member] Member loma:FerrosurRocaSAMember
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1815 HSBC Bank Argentina S.A [member] Member loma:HSBCBankArgentinaSAMember
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1820 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
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1824 1168 - Disclosure - Restricted Assets - Additional Information (Detail) Network

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1825 Disclosure of restricted assets [table] Table

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1835 Sudameris Bank S.A.E.C.A. [member] Member loma:SudamerisBankSAECAMember
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1842 Land and property pledged as security Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipmentPledgedAsSecurity
1843 Remaining balance of loans owned Concept (Monetary) As Of Credit ifrs-full:UndrawnBorrowingFacilities
1844 1169 - Disclosure - Commitments - Additional Information (Detail) Network

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1845 Disclosure Of Commitments [Table] Table

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1847 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1848 2018 [member] Member ifrs-full:NotLaterThanOneYearMember
1849 2019 [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1850 2020 [member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1851 2020 and beyond [member] Member loma:LaterThanTwoYearsMember
1852 Range [axis] Axis ifrs-full:RangeAxis
1853 Ranges [member] Member ifrs-full:RangesMember
1854 Top of Range [member] Member ifrs-full:TopOfRangeMember
1855 Counterparties [axis] Axis ifrs-full:CounterpartiesAxis
1856 Counterparties [member] Member ifrs-full:CounterpartiesMember
1857 Sinoma International Engenieering Co. Ltd. [member] Member loma:SinomaInternationalEngenieeringCoLtdMember
1858 Disclosure of commitments [line items] LineItems loma:DisclosureOfCommitmentsLineItems
1859 Contractual commitments estimated undiscounted future cash flows Concept (Monetary) As Of Credit loma:ContractualCommitmentsEstimatedUndiscountedFutureCashFlows
1860 Contractual commitment to purchase limestone Concept (Monetary) As Of Credit loma:ContractualCommitmentToPurchaseLimestone
1861 Provision of natural gas commitment Concept (Monetary) As Of Credit loma:PayablesForProvisionOfNaturalGas
1862 Electrical energy consumption commitment annual payment Concept (Monetary) As Of Credit ifrs-full:PayablesForPurchaseOfEnergy
1863 Electrical energy consumption commitment percentage Concept (Percent) For Period loma:ElectricalEnergyConsumptionCommitmentPercentage
1864 Commitment due to agreement Concept (Monetary) As Of Credit loma:CommitmentDueToAgreement
1865 Total commitment after currency translation adjustment Concept (Monetary) As Of Credit loma:CommitmentAfterCurrencyTranslationAdjustment
1866 1170 - Disclosure - Investment Projects - Additional Information (Detail) Network

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1867 Implied Table Table

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1868 Disclosure of detailed information about investment property [abstract] Abstract ifrs-full:DisclosureOfInvestmentPropertyAbstract
1869 New cement plant capacity per day Concept (num:massItemType) For Period loma:CementPlantCapacity
1870 Total project cost Concept (Monetary) For Period Debit loma:ProjectCostNet
1871 Project cost translation adjustment Concept (Monetary) For Period Debit loma:ProjectCostTranslationAdjustment
1872 1171 - Disclosure - Receivable from Railway Program Execution Unit - Additional Information (Detail) Network

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1873 Implied Table Table

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1874 Disclosure of receivables [abstract] Abstract loma:DisclosureOfReceivablesAbstract
1875 Receivable from railway program execution unit Concept (Monetary) As Of Debit loma:NonCurrentReceivableFromRailwayProgram
1876 Valuation of asset Concept (Monetary) As Of Debit loma:CurrentReceivableFromRailwayProgram
1877 1172 - Disclosure - Trust of Administration - Additional Information (Detail) Network

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1878 Implied Table Table

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1879 Disclosure trust of administration [abstract] Abstract loma:DisclosureTrustOfAdministrationAbstract
1880 Annual fee contributions percentage Concept (Percent) For Period loma:AnnualFeeContributionsPercentage
1881 Contributions Concept (Monetary) For Period Credit ifrs-full:PaymentsForDevelopmentProjectExpenditure
1882 Canon recovery Concept (Monetary) For Period Credit ifrs-full:PropertyDevelopmentAndProjectManagementIncome
1883 Improvement of railway Concept (num:lengthItemType) For Period loma:ImprovedDistanceOfRailway
1884 Total amount of investment approved Concept (Monetary) As Of Debit loma:AmountOfInvestmentApproved
1885 1173 - Disclosure - Restrictions to Dividends Distribution - Additional Information (Detail) Network

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1886 Disclosure restrictions to dividends distribution [table] Table

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1887 Range [axis] Axis ifrs-full:RangeAxis
1888 Ranges [member] Member ifrs-full:RangesMember
1889 Bottom of Range [member] Member ifrs-full:BottomOfRangeMember
1890 Disclosure restrictions to dividends distribution [line items] LineItems loma:DisclosureRestrictionsToDividendsDistributionLineItems
1891 Legal reserve percentage with respect to net income Concept (Percent) For Period loma:LegalReservePercentageWithRespectToNetIncomeMinimumThreshold
1892 Legal reserve percentage with respect to net income subscribed capital plus adjustment to capital Concept (Percent) For Period loma:LegalReservePercentageWithRespectToNetIncomeSubscribedCapitalPlusAdjustmentToCapital
1893 Restrictions to dividends distribution ratio before occurrence of substantial event Concept (Pure) For Period loma:RestrictionsToDividendsDistributionRatioBeforeOccurrenceOfSubstantialEvent
1894 Restrictions to dividends distribution ratio after occurrence of substantial event Concept (Pure) For Period loma:RestrictionsToDividendsDistributionRatioAfterOccurrenceOfSubstantialEvent
1895 1174 - Disclosure - Condensed Unconsolidated Financial Information - Disclosure of Information About Unconsolidated Structured Entities (Detail) Network

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1896 Condensed Income Statement [Table] Table

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1897 Consolidated Entities [Axis] Axis us-gaap:ConsolidatedEntitiesAxis
1898 Consolidated Entities [Domain] Member us-gaap:ConsolidatedEntitiesDomain
1899 Loma Negra C.I.A.S.A. [member] Member us-gaap:ParentCompanyMember
1900 Condensed Income Statements, Captions [Line Items] LineItems us-gaap:CondensedIncomeStatementsCaptionsLineItems
1901 Net revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
1902 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
1903 Gross profit Concept (Monetary) For Period Credit ifrs-full:GrossProfit
1904 Share of profit (loss) of associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
1905 Selling and administrative expenses Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
1906 Other gains and losses Concept (Monetary) For Period Credit ifrs-full:OtherGainsLosses
1907 Tax on debits and credits to bank accounts Concept (Monetary) For Period Debit loma:PaymentsToTaxPaidOnBankTransaction
1908 FINANCE COSTS, NET Abstract loma:NetFinanceCostsAbstract
1909 Exchange rate differences Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
1910 Financial income Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
1911 Financial expenses Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
1912 Profit before tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
1913 INCOME TAX EXPENSE Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
1914 Current Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
1915 Deferred Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
1916 NET PROFIT FOR THE YEAR Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
1917 OTHER COMPREHENSIVE INCOME Abstract ifrs-full:OtherComprehensiveIncomeAbstract
1918 Items to be reclassified through profit and loss: Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract
1919 Exchange differences on translating foreign operations Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationNetOfTax
1920 Cash flow hedges Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges
1921 TOTAL OTHER COMPREHENSIVE (LOSS) INCOME Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax
1922 TOTAL COMPREHENSIVE INCOME Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
1923 Earnings per share (basic and diluted) Concept (Share) For Period ifrs-full:BasicAndDilutedEarningsLossPerShare
1924 1175 - Disclosure - Condensed Unconsolidated Financial Information - Condensed Unconsolidated Statements of Financial Position (Detail) Network

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1925 Condensed Balance Sheet Statement [Table] Table

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1926 Consolidated Entities [Axis] Axis us-gaap:ConsolidatedEntitiesAxis
1927 Consolidated Entities [Domain] Member us-gaap:ConsolidatedEntitiesDomain
1928 Loma Negra C.I.A.S.A. [member] Member us-gaap:ParentCompanyMember
1929 Condensed Balance Sheet Statements, Captions [Line Items] LineItems us-gaap:CondensedBalanceSheetStatementsCaptionsLineItems
1930 ASSETS Abstract ifrs-full:AssetsAbstract
1931 Non-current assets Abstract ifrs-full:NoncurrentAssetsAbstract
1932 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1933 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
1934 Investments Concept (Monetary) As Of Debit ifrs-full:InvestmentAccountedForUsingEquityMethod
1935 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
1936 Inventories Concept (Monetary) As Of Debit ifrs-full:NoncurrentInventories
1937 Other receivables Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentReceivables
1938 Trade accounts receivable Concept (Monetary) As Of Debit ifrs-full:NoncurrentTradeReceivables
1939 Total non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
1940 Current assets Abstract ifrs-full:CurrentAssetsAbstract
1941 Inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
1942 Other receivables Concept (Monetary) As Of Debit ifrs-full:OtherCurrentReceivables
1943 Trade accounts receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
1944 Investments Concept (Monetary) As Of Debit ifrs-full:CurrentInvestments
1945 Cash and banks Concept (Monetary) As Of Debit ifrs-full:Cash
1946 Total current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
1947 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
1948 SHAREHOLDERS' EQUITY AND LIABILITIES Abstract ifrs-full:EquityAndLiabilitiesAbstract
1949 Total shareholders' equity Concept (Monetary) As Of Credit ifrs-full:Equity
1950 LIABILITIES Abstract ifrs-full:LiabilitiesAbstract
1951 Non-current liabilities Abstract ifrs-full:NoncurrentLiabilitiesAbstract
1952 Borrowings Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
1953 Accounts payable Concept (Monetary) As Of Credit ifrs-full:NoncurrentPayables
1954 Provisions Concept (Monetary) As Of Credit ifrs-full:NoncurrentProvisions
1955 Tax liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesNoncurrent
1956 Other liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
1957 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
1958 Total non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
1959 Current liabilities Abstract ifrs-full:CurrentLiabilitiesAbstract
1960 Borrowings Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
1961 Accounts payable Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
1962 Advances from customers Concept (Monetary) As Of Credit ifrs-full:CurrentDepositsFromCustomers
1963 Salaries and social security payables Concept (Monetary) As Of Credit loma:SalariesAndSocialSecurityPayables
1964 Tax liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilities
1965 Other liabilities Concept (Monetary) As Of Credit ifrs-full:OtherCurrentLiabilities
1966 Total current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
1967 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
1968 Total shareholders' equity and liabilities Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
1969 1176 - Disclosure - Condensed Unconsolidated Financial Information - Condensed Unconsolidated Statement of Cash Flows (Detail) Network

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1970 Condensed Cash Flow Statement [Table] Table

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1971 Consolidated Entities [Axis] Axis us-gaap:ConsolidatedEntitiesAxis
1972 Consolidated Entities [Domain] Member us-gaap:ConsolidatedEntitiesDomain
1973 Loma Negra C.I.A.S.A. [member] Member us-gaap:ParentCompanyMember
1974 Condensed Cash Flow Statements, Captions [Line Items] LineItems us-gaap:CondensedCashFlowStatementsCaptionsLineItems
1975 CASH FLOWS FROM OPERATING ACTIVITIES Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
1976 NET PROFIT FOR THE YEAR Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
1977 Adjustments to reconcile net profit to net cash provided by operating activities Abstract ifrs-full:AdjustmentsForReconcileProfitLossAbstract
1978 Income tax expense Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncomeTaxExpense
1979 Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense
1980 Provisions Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForProvisions
1981 Interests Concept (Monetary) For Period Debit loma:AdjustmentsForIncreaseDecreaseInInterest
1982 Share of profit (loss) of associates Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForUndistributedProfitsOfAssociates
1983 Investment income recognized in profit Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForInterestIncome
1984 Exchange rate differences Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains
1985 Gain on disposal of Property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment
1986 Changes in operating assets and liabilities Abstract loma:ChangesInOperatingAssetsAndLiabilitiesAbstract
1987 Inventories Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInInventories
1988 Other receivables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInOtherOperatingReceivables
1989 Trade accounts receivable Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAccountReceivable
1990 Advances from customers Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInDepositsFromCustomers
1991 Accounts payable Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables
1992 Salaries and social security payables Concept (Monetary) For Period Debit loma:AdjustmentsForIncreaseDecreaseInSalariesAndSocialSecurityPayables
1993 Provisions Concept (Monetary) For Period Debit loma:AdjustmentsForIncreaseDecreaseInProvisions
1994 Tax liabilities Concept (Monetary) For Period Debit loma:AdjustmentsForIncreaseDecreaseInIncomeTaxExpense
1995 Other liabilities Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInOtherLiabilities
1996 Cash generated from operations Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperations
1997 Income tax paid Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidClassifiedAsOperatingActivities
1998 Net cash generated by operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
1999 CASH FLOWS FROM INVESTING ACTIVITIES Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
2000 Proceeds from disposal of Property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
2001 Payments to acquire Property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
2002 Payments to acquire intangible assets Concept (Monetary) For Period Credit ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities
2003 Investments - Interest received Concept (Monetary) For Period Debit ifrs-full:InterestReceivedClassifiedAsInvestingActivities
2004 Net cash used in investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
2005 CASH FLOWS FROM FINANCING ACTIVITIES Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
2006 Proceeds from borrowings Concept (Monetary) For Period Debit ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities
2007 Interest paid Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsFinancingActivities
2008 Dividends paid Concept (Monetary) For Period Credit ifrs-full:DividendsPaidClassifiedAsFinancingActivities
2009 Repayment of borrowings Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities
2010 Capital increase Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
2011 Net cash used in financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
2012 Net increase (decrease) in cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges
2013 Cash and cash equivalents at the beginning of the year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
2014 Effects of the exchange rate differences on cash and cash equivalents in foreign currency Concept (Monetary) For Period Debit ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
2015 Cash and cash equivalents at the end of the year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
2016 1177 - Disclosure - Condensed Unconsolidated Financial Information - Summary of Composition of Borrowings (Detail) Network

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2017 Disclosure of detailed information about borrowings [table] Table

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2018 Consolidated Entities [Axis] Axis us-gaap:ConsolidatedEntitiesAxis
2019 Consolidated Entities [Domain] Member us-gaap:ConsolidatedEntitiesDomain
2020 Loma Negra C.I.A.S.A. [member] Member us-gaap:ParentCompanyMember
2021 Currency [Axis] Axis us-gaap:CurrencyAxis
2022 All Currencies [Domain] Member currency:AllCurrenciesDomain
2023 In US Dollars [member] Member currency:USD
2024 In Argentina Pesos [member] Member currency:ARS
2025 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
2026 Non-current Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
2027 Current Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
2028 Borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
2029 1178 - Disclosure - Condensed Unconsolidated Financial Information - Summary of Information About Borrowings (Detail) Network

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2030 Disclosure of detailed information about borrowings [table] Table

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2031 Consolidated Entities [Axis] Axis us-gaap:ConsolidatedEntitiesAxis
2032 Consolidated Entities [Domain] Member us-gaap:ConsolidatedEntitiesDomain
2033 Loma Negra C.I.A.S.A. [member] Member us-gaap:ParentCompanyMember
2034 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
2035 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
2036 In US Dollars [member] Member currency:USD
2037 In Argentina Pesos [member] Member currency:ARS
2038 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
2039 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
2040 Banco Supervielle S.A. [member] Member loma:BancoSupervielleSAMember
2041 Industrial And Commercial Bank Of China [member] Member loma:IndustrialAndCommercialBankOfChinaMember
2042 Itau Unibanco SA [member] Member loma:ItauUnibancoSaMember
2043 Banco Provincia de Buenos Aires [member] Member loma:BancoProvinciaDeBuenosAiresMember
2044 Banco Provincia de Buenos Aires One [member] Member loma:BancoProvinciaDeBuenosAiresOneMember
2045 Banco Provincia de Buenos Aires two [member] Member loma:BancoProvinciaDeBuenosAiresTwoMember
2046 Banco Provincia de Buenos Aires three [member] Member loma:BancoProvinciaDeBuenosAiresThreeMember
2047 HSBC Bank Argentina S.A [member] Member loma:HSBCBankArgentinaSAMember
2048 Banco Patagonia S.A. [member] Member loma:BancoPatagoniaSAMember
2049 Banco Santander Rio S.A. [member] Member loma:BancoSantanderRioSAMember
2050 Bank overdrafts [member] Member loma:BankOverdrafts1Member
2051 Types of interest rates [axis] Axis ifrs-full:TypesOfInterestRatesAxis
2052 Interest rate types [member] Member ifrs-full:InterestRateTypesMember
2053 Fixed interest rate [member] Member ifrs-full:FixedInterestRateMember
2054 LIBOR plus 3.4 [member] Member loma:LIBORPlusThreePointFourPercentageMember
2055 LIBOR plus 2.9 [member] Member loma:LIBORPlusTwoPointNinePercentageMember
2056 LIBOR plus 3.75 [member] Member loma:LIBORPlusThreePointSevenFivePercentageMember
2057 BADLAR plus 4% [member] Member loma:BadlarPlusFourPercentageMember
2058 BADLAR plus 2 % [member] Member loma:BadlarPlusTwoPercentageMember
2059 BADLAR corrected plus 1.65 % [member] Member loma:BadlarCorrectedPlusOnePointSixFivePercentageMember
2060 BADLAR corrected plus 4 % [member] Member loma:BadlarCorrectedPlusFourPercentageMember
2061 Disclosure of detailed information about borrowings [line items] LineItems ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsLineItems
2062 Borrowings interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
2063 Borrowings interest rate basis Concept (Text/String) For Period ifrs-full:BorrowingsInterestRateBasis
2064 Borrowings adjustment to interest rate basis Concept (Percent) As Of ifrs-full:BorrowingsAdjustmentToInterestRateBasis
2065 Due date Concept (Text/String) For Period ifrs-full:BorrowingsMaturity
2066 Amount Concept (Monetary) As Of Credit ifrs-full:Borrowings
2067 1179 - Disclosure - Condensed Unconsolidated Financial Information - Summary of Maturity Analysis for Non derivative Financial Liabilities (Detail) Network

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2068 Disclosure of maturity analysis for non-derivative financial liabilities [table] Table

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2069 Consolidated Entities [Axis] Axis us-gaap:ConsolidatedEntitiesAxis
2070 Consolidated Entities [Domain] Member us-gaap:ConsolidatedEntitiesDomain
2071 Loma Negra C.I.A.S.A. [member] Member us-gaap:ParentCompanyMember
2072 Maturity [axis] Axis ifrs-full:MaturityAxis
2073 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
2074 Not later than 1 month [member] Member ifrs-full:NotLaterThanOneMonthMember
2075 1-3 months [member] Member ifrs-full:LaterThanOneMonthAndNotLaterThanThreeMonthsMember
2076 3 months to 1 year [member] Member ifrs-full:LaterThanThreeMonthsAndNotLaterThanOneYearMember
2077 1 to 3 years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanThreeYearsMember
2078 Range [axis] Axis ifrs-full:RangeAxis
2079 Ranges [member] Member ifrs-full:RangesMember
2080 Weighted average [member] Member ifrs-full:WeightedAverageMember
2081 Disclosure of maturity analysis for non-derivative financial liabilities [line items] LineItems ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems
2082 Weighted average effective interest ratE Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
2083 Borrowings Concept (Monetary) As Of Credit ifrs-full:BankBorrowingsUndiscountedCashFlows
2084 Non-derivative financial liabilities Concept (Monetary) As Of Credit ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows
2085 1180 - Disclosure - Condensed Unconsolidated Financial Information - Summary of Accounts Payable (Detail) Network

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2086 Disclosure of Accounts Payable [Table] Table

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2087 Consolidated Entities [Axis] Axis us-gaap:ConsolidatedEntitiesAxis
2088 Consolidated Entities [Domain] Member us-gaap:ConsolidatedEntitiesDomain
2089 Loma Negra C.I.A.S.A. [member] Member us-gaap:ParentCompanyMember
2090 Disclosure Of Accounts Payable [Line Items] LineItems loma:DisclosureOfAccountsPayableLineItems
2091 Non-current Concept (Monetary) As Of Credit ifrs-full:NoncurrentPayablesForPurchaseOfNoncurrentAssets
2092 Accounts payable for investments in Property, plant and equipment Concept (Monetary) As Of Credit ifrs-full:AccrualsClassifiedAsNoncurrent
2093 Total Concept (Monetary) As Of Credit ifrs-full:NoncurrentPayables
2094 1181 - Disclosure - Condensed Unconsolidated Financial Information - Summary of Provisions (Detail) Network

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2095 Disclosure of other provisions [table] Table

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2096 Consolidated Entities [Axis] Axis us-gaap:ConsolidatedEntitiesAxis
2097 Consolidated Entities [Domain] Member us-gaap:ConsolidatedEntitiesDomain
2098 Loma Negra C.I.A.S.A. [member] Member us-gaap:ParentCompanyMember
2099 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
2100 Other provisions [member] Member ifrs-full:OtherProvisionsMember
2101 Labor and social security [member] Member loma:LaborAndSocialSecurityMember
2102 Environmental restoration [member] Member ifrs-full:ProvisionForDecommissioningRestorationAndRehabilitationCostsMember
2103 Civil and others [member] Member ifrs-full:LegalProceedingsProvisionMember
2104 Disclosure of other provisions [line items] LineItems ifrs-full:DisclosureOfOtherProvisionsLineItems
2105 Non current provisions Concept (Monetary) As Of Credit ifrs-full:NoncurrentProvisions
2106 1182 - Disclosure - Condensed Unconsolidated Financial Information - Summary of Information About Other Liabilities (Detail) Network

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2107 Disclosure Of Other Liabilities [Table] Table

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2108 Consolidated Entities [Axis] Axis us-gaap:ConsolidatedEntitiesAxis
2109 Consolidated Entities [Domain] Member us-gaap:ConsolidatedEntitiesDomain
2110 Loma Negra C.I.A.S.A. [member] Member us-gaap:ParentCompanyMember
2111 Disclosure Of Other Liabilities [Line Items] LineItems loma:DisclosureOfOtherLiabilitiesLineItems
2112 Termination payment plans Concept (Monetary) As Of Credit ifrs-full:NoncurrentProvisionsForEmployeeBenefits
2113 Total Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
2114 1183 - Disclosure - Condensed Unconsolidated Financial Information - Summary of Information About Tax Liabilities (Detail) Network

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2115 Disclosure Of Tax Liabilities [Table] Table

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 loma:DisclosureOfTaxLiabilitiesTable
2116 Consolidated Entities [Axis] Axis us-gaap:ConsolidatedEntitiesAxis
2117 Consolidated Entities [Domain] Member us-gaap:ConsolidatedEntitiesDomain
2118 Loma Negra C.I.A.S.A. [member] Member us-gaap:ParentCompanyMember
2119 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
2120 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
2121 Facilities payment plans [member] Member loma:FacilitiesPaymentPlansMember
2122 Disclosure Of Tax Liabilities [Line Items] LineItems loma:DisclosureOfTaxLiabilitiesLineItems
2123 Non-current tax liabilities Abstract loma:CurrentTaxLiabilitiesNoncurrentAbstract
2124 Non-current tax liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesNoncurrent
2125 1184 - Disclosure - Condensed Unconsolidated Financial Information - Summary of Deferred Income Tax charged to Income (Detail) Network

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 http://imetrix.edgar-online.com/taxonomy/role/DisclosureCondensedUnconsolidatedFinancialInformationSummaryOfDeferredIncomeTaxChargedToIncome
2126 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

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 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
2127 Consolidated Entities [Axis] Axis us-gaap:ConsolidatedEntitiesAxis
2128 Consolidated Entities [Domain] Member us-gaap:ConsolidatedEntitiesDomain
2129 Loma Negra C.I.A.S.A. [member] Member us-gaap:ParentCompanyMember
2130 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
2131 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
2132 Provisions [member] Member loma:DeferredTaxAssetsProvisionsMember
2133 Others [member] Member loma:DeferredTaxAssetsOthersMember
2134 Accounts payable and investments [member] Member loma:DeferredTaxLiabilitiesAccountsPayableAndInvestmentsMember
2135 Other receivables [member] Member loma:DeferredTaxLiabilitiesOtherReceivablesMember
2136 Property, plant and equipment [member] Member loma:DeferredTaxLiabilitiesPropertyPlantAndEquipmentMember
2137 Others [member] Member loma:DeferredTaxLiabilitiesOthersMember
2138 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
2139 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
2140 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:NetDeferredTaxLiabilities
2141 Total Deferred income tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
2142 1185 - Disclosure - Condensed Unconsolidated Financial Information - Summary of Unrecognised Taxable Temporary Difference Associated with Investment and Interest (Detail) Network

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 http://imetrix.edgar-online.com/taxonomy/role/DisclosureCondensedUnconsolidatedFinancialInformationSummaryOfUnrecognisedTaxableTemporaryDifferenceAssociatedWithInvestmentAndInterest
2143 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

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 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
2144 Consolidated Entities [Axis] Axis us-gaap:ConsolidatedEntitiesAxis
2145 Consolidated Entities [Domain] Member us-gaap:ConsolidatedEntitiesDomain
2146 Loma Negra C.I.A.S.A. [member] Member us-gaap:ParentCompanyMember
2147 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
2148 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
2149 Subsidiaries [member] Member ifrs-full:SubsidiariesMember
2150 Others [member] Member ifrs-full:OtherRelatedPartiesMember
2151 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
2152 Taxable temporary differences in relation to investments in subsidiaries and associates for which deferred tax liabilities have not been recognized are attributable to the following: Concept (Monetary) As Of ifrs-full:TemporaryDifferencesAssociatedWithInvestmentsInSubsidiariesBranchesAndAssociatesAndInterestsInJointVentures

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