MATERIALISE NV (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

Line Label Object Class Period Type Balance Report ElementName
1 0001 - Document - Document and entity information Network

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http://www.materialise.com/20171231/role/DocumentAndEntityInformation
2 Implied Table Table

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implied:Table
3 Document and entity information [abstract] Abstract mtls:DocumentAndEntityInformationAbstract
4 Document type Concept (Submission Type) For Period dei:DocumentType
5 Amendment flag Concept (Yes/No) For Period dei:AmendmentFlag
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
14 Entity current reporting status Concept (Yes/No) For Period dei:EntityCurrentReportingStatus
15 Entity filer category Concept (Filer Category) For Period dei:EntityFilerCategory
16 Entity common stock shares outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
17 0011 - Statement - Consolidated income statements Network

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http://www.materialise.com/20171231/role/ConsolidatedIncomeStatements
18 Consolidated income statements [table] Table

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mtls:ConsolidatedIncomeStatementsTable
19 Legal entity [axis] Axis dei:LegalEntityAxis
20 Consolidated entity [member] Member mtls:ConsolidatedEntityMember
21 Consolidated income statements Abstract ifrs-full:IncomeStatementAbstract
22 Consolidated income statements [line item] Abstract mtls:ConsolidatedIncomeStatementsLineItemsAbstract
23 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
24 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
25 Gross profit Concept (Monetary) For Period Credit ifrs-full:GrossProfit
26 Research and development expenses Concept (Monetary) For Period Debit ifrs-full:ResearchAndDevelopmentExpense
27 Sales and marketing expenses Concept (Monetary) For Period Debit ifrs-full:SalesAndMarketingExpense
28 General and administrative expenses Concept (Monetary) For Period Debit ifrs-full:AdministrativeExpense
29 Net other operating income / (expenses) Concept (Monetary) For Period Credit ifrs-full:OtherGainsLosses
30 Operating (loss) profit Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
31 Financial expenses Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
32 Financial income Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
33 Share in loss of joint venture Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
34 (Loss) profit before taxes Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
35 Total tax expense (income) Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
36 Net loss for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
37 Net (loss) profit attributable to: Abstract ifrs-full:ProfitLossAttributableToAbstract
38 The owners of the parent Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
39 Profit (loss) attributable to non-controlling interest Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
40 0011 - Statement - Consolidated income statements Network

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http://www.materialise.com/20171231/role/ConsolidatedIncomeStatements
41 Implied Table Table

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implied:Table
42 Consolidated income statements Abstract ifrs-full:IncomeStatementAbstract
43 Consolidated income statements [line item] Abstract mtls:ConsolidatedIncomeStatementsLineItemsAbstract
44 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
45 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
46 Gross profit Concept (Monetary) For Period Credit ifrs-full:GrossProfit
47 Research and development expenses Concept (Monetary) For Period Debit ifrs-full:ResearchAndDevelopmentExpense
48 Sales and marketing expenses Concept (Monetary) For Period Debit ifrs-full:SalesAndMarketingExpense
49 General and administrative expenses Concept (Monetary) For Period Debit ifrs-full:AdministrativeExpense
50 Net other operating income / (expenses) Concept (Monetary) For Period Credit ifrs-full:OtherGainsLosses
51 Operating (loss) profit Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
52 Financial expenses Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
53 Financial income Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
54 Share in loss of joint venture Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
55 (Loss) profit before taxes Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
56 Income taxes Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
57 Net (loss) profit of the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
58 Net (loss) profit attributable to: Abstract ifrs-full:ProfitLossAttributableToAbstract
59 The owners of the parent Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
60 Non-controlling interest Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
61 0012 - Statement - Consolidated income statements (Parenthetical) Network

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http://www.materialise.com/20171231/role/ConsolidatedIncomeStatementsParenthetical
62 Implied Table Table

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implied:Table
63 Earnings per share attributable to ordinary owners of the parent [abstract] Abstract ifrs-full:BasicAndDilutedEarningsPerShareAbstract
64 Basic Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
65 Diluted Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
66 0013 - Statement - Consolidated statements of comprehensive income Network

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http://www.materialise.com/20171231/role/ConsolidatedStatementsOfComprehensiveIncome
67 Consolidated statements of comprehensive income [table] Table

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mtls:StatemenzOfComprehensiveIncomeTable
68 Legal entity [axis] Axis dei:LegalEntityAxis
69 Consolidated entity [member] Member mtls:ConsolidatedEntityMember
70 Consolidated statements of comprehensive income [line items] LineItems mtls:StatemenzOfComprehensiveIncomeLineItems
71 Net (loss) profit of the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
72 Exchange differences on translation of foreign operations Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationNetOfTax
73 Other comprehensive (loss) income, net of taxes Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
74 Total comprehensive (loss) income of the year, net of taxes Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
75 Total comprehensive (loss) income attributable to: Abstract ifrs-full:ComprehensiveIncomeAttributableToAbstract
76 The owners of the parent Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent
77 Non-controlling interest Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests
78 0014 - Statement - Consolidated statement of financial position Network

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http://www.materialise.com/20171231/role/ConsolidatedStatementOfFinancialPosition
79 Consolidated statement of financial position [table] Table

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mtls:ConsolidatedStatementOfFinancialPositionTable
80 Legal entity [axis] Axis dei:LegalEntityAxis
81 Consolidated entity [member] Member mtls:ConsolidatedEntityMember
82 Consolidated Statement Of Financial Position Abstract ifrs-full:StatementOfFinancialPositionAbstract
83 Consolidated statement of financial position [line items] Abstract mtls:ConsolidatedStatementOfFinancialPositionLineItemsAbstract
84 Assets [Abstract] Abstract ifrs-full:AssetsAbstract
85 Non-current Assets [Abstract] Abstract ifrs-full:NoncurrentAssetsAbstract
86 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
87 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
88 Investments in joint ventures Concept (Monetary) As Of Debit ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates
89 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
90 Other non-current assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
91 Non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
92 Current assets [Abstract] Abstract ifrs-full:CurrentAssetsAbstract
93 Inventories and contracts in progress Concept (Monetary) As Of Debit ifrs-full:Inventories
94 Trade receivables Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
95 Held to maturity investments Concept (Monetary) As Of Debit ifrs-full:CurrentHeldtomaturityInvestments
96 Other current assets Concept (Monetary) As Of Debit ifrs-full:OtherCurrentAssets
97 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
98 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
99 Assets Concept (Monetary) As Of Debit ifrs-full:Assets
100 Equity and liabilities [Abstract] Abstract ifrs-full:EquityAndLiabilitiesAbstract
101 Equity [Abstract] Abstract ifrs-full:EquityAbstract
102 Share capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
103 Share premium Concept (Monetary) As Of Credit ifrs-full:SharePremium
104 Consolidated reserves Concept (Monetary) For Period Credit mtls:ConsolidatedReserves
105 Other comprehensive income Concept (Monetary) As Of Credit ifrs-full:AccumulatedOtherComprehensiveIncome
106 Equity attributable to the owners of the parent Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
107 Non-controlling interest Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
108 Equity Concept (Monetary) As Of Credit ifrs-full:Equity
109 Non-current liabilities [Abstract] Abstract ifrs-full:NoncurrentLiabilitiesAbstract
110 Loans and borrowings Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
111 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
112 Deferred income, non-current liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsNoncurrent
113 Other non-current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
114 Non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
115 Current liabilities [Abstract] Abstract ifrs-full:CurrentLiabilitiesAbstract
116 Current borrowings and current portion of non-current borrowings Concept (Monetary) As Of Credit ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings
117 Trade and other current payables to trade suppliers Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers
118 Tax payables Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesCurrent
119 Deferred income classified as current Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsCurrent
120 Other current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherCurrentLiabilities
121 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
122 Equity and liabilities Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
123 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
124 0014 - Statement - Consolidated statement of financial position Network

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http://www.materialise.com/20171231/role/ConsolidatedStatementOfFinancialPosition
125 Implied Table Table

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implied:Table
126 Consolidated Statement Of Financial Position Abstract ifrs-full:StatementOfFinancialPositionAbstract
127 Consolidated statement of financial position [line items] Abstract mtls:ConsolidatedStatementOfFinancialPositionLineItemsAbstract
128 Assets [Abstract] Abstract ifrs-full:AssetsAbstract
129 Non-current Assets [Abstract] Abstract ifrs-full:NoncurrentAssetsAbstract
130 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
131 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
132 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
133 Investments in joint ventures Concept (Monetary) As Of Debit ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates
134 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
135 Other non-current assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
136 Total non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
137 Current assets [Abstract] Abstract ifrs-full:CurrentAssetsAbstract
138 Inventories and contracts in progress Concept (Monetary) As Of Debit ifrs-full:Inventories
139 Trade receivables Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
140 Held to maturity investments Concept (Monetary) As Of Debit ifrs-full:CurrentHeldtomaturityInvestments
141 Other current assets Concept (Monetary) As Of Debit ifrs-full:OtherCurrentAssets
142 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
143 Total current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
144 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
145 Equity and liabilities [Abstract] Abstract ifrs-full:EquityAndLiabilitiesAbstract
146 Equity [Abstract] Abstract ifrs-full:EquityAbstract
147 Share capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
148 Share premium Concept (Monetary) As Of Credit ifrs-full:SharePremium
149 Consolidated reserves Concept (Monetary) For Period Credit mtls:ConsolidatedReserves
150 Other comprehensive income Concept (Monetary) As Of Credit ifrs-full:AccumulatedOtherComprehensiveIncome
151 Equity attributable to the owners of the parent Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
152 Non-controlling interest Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
153 Total equity Concept (Monetary) As Of Credit ifrs-full:Equity
154 Non-current liabilities [Abstract] Abstract ifrs-full:NoncurrentLiabilitiesAbstract
155 Loans and borrowings Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
156 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
157 Deferred income Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsNoncurrent
158 Other non-current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
159 Total non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
160 Current liabilities [Abstract] Abstract ifrs-full:CurrentLiabilitiesAbstract
161 Loans and borrowings Concept (Monetary) As Of Credit ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings
162 Trade payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers
163 Tax payables Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesCurrent
164 Deferred income Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsCurrent
165 Other current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherCurrentLiabilities
166 Total current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
167 Total equity and liabilities Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
168 0015 - Statement - Consolidated statement of changes in equity Network

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http://www.materialise.com/20171231/role/ConsolidatedStatementOfChangesInEquity
169 Consolidated statement of changes in equity [Table] Table

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ifrs-full:StatementOfChangesInEquityTable
170 Consolidated statement of changes in equity [Axis] Axis ifrs-full:ComponentsOfEquityAxis
171 Total equity [Member] Member ifrs-full:EquityMember
172 Total equity attributable to the owners of the parents [member] Member ifrs-full:EquityAttributableToOwnersOfParentMember
173 Share capital [Member] Member ifrs-full:ClassesOfShareCapitalMember
174 Share premium [Member] Member ifrs-full:SharePremiumMember
175 Reserves [member] Member mtls:ConsolidatedReservesMember
176 Other comprehensive income [Member] Member ifrs-full:AccumulatedOtherComprehensiveIncomeMember
177 Non-controlling interest [Member] Member ifrs-full:NoncontrollingInterestsMember
178 Consolidated statement of changes in equity [Line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
179 At beginnig of the period Concept (Monetary) As Of Credit ifrs-full:Equity
180 Net loss for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
181 Other comprehensive income Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
182 Total comprehensive income (loss) Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
183 Tranfer share capital to share premium - correction Concept (Monetary) For Period Debit mtls:TransferShareCapitalToSharePremium
184 Capital increase in cash Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughOtherContributionsByOwners
185 Capital increase through excercise of warrants Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughExerciseOfWarrantsEquity
186 Acquisition NCI Mobelife Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary
187 Equity-settled share-based payment expense Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
188 At end of the period Concept (Monetary) As Of Credit ifrs-full:Equity
189 0016 - Statement - Consolidated cash flow statements Network

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http://www.materialise.com/20171231/role/ConsolidatedCashFlowStatements
190 Consolidated cash flow statements [table] Table

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mtls:StatementOfCashFlowTable
191 Consolidated cash flow statements [axis] Axis mtls:ConsolidatedCashFlowStatementsAxis
192 Entity domain [member] Member dei:EntityDomain
193 Consolidated entity [member] Member mtls:ConsolidatedEntityMember
194 Consolidated cash flow statements [line items] LineItems mtls:ConsolidatedCashFlowStatementsLineItems
195 Operating activities Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
196 Net (loss) profit of the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
197 Depreciation of property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDepreciationExpense
198 Amortization of intangible assets Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForAmortisationExpense
199 Impairment of goodwill Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForImpairmentLossRecognisedInProfitOrLossGoodwill
200 Share-based payment expense Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForSharebasedPayments
201 Loss (gain) on disposal of property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment
202 Government grants Concept (Monetary) For Period Credit mtls:AdjustmentsForGovernmentGrants
203 Movement in provisions Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForProvisions
204 Movement reserve for bad debt Concept (Monetary) For Period Debit mtls:AdjustmentsForMovementReserveBadDebt
205 Financial income Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForFinanceIncome
206 Finance expense Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForFinanceCosts
207 Impact of foreign currencies Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains
208 Impact of foreign currencies Concept (Monetary) For Period Debit mtls:ImpactOfForeignCurrencies
209 Share in loss of joint venture Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
210 Income taxes and deferred taxes Concept (Monetary) For Period Debit mtls:AdjustmentForDeferredIncomeTaxesExpenseIncome
211 Fair value adjustment contingent consideration Concept (Monetary) For Period Credit mtls:FairValueAdjustmentContingentConsideration
212 Other Concept (Monetary) For Period Debit ifrs-full:OtherAdjustmentsForNoncashItems
213 Increase in trade receivables and other receivables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables
214 Decrease (increase) in inventories Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInInventories
215 Adjustments for increase (decrease) in trade and other payables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables
216 Income tax paid Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities
217 Net cash flow from operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
218 Investing activities Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
219 Purchase of property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
220 Purchase of intangible assets Concept (Monetary) For Period Credit ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities
221 Proceeds from the sale of property, plant and equipment (net) Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
222 Acquisition of subsidiary (net of cash) Concept (Monetary) For Period Credit ifrs-full:OtherCashPaymentsToAcquireEquityOrDebtInstrumentsOfOtherEntitiesClassifiedAsInvestingActivities
223 Investments in joint-ventures Concept (Monetary) For Period Credit ifrs-full:OtherCashPaymentsToAcquireInterestsInJointVenturesClassifiedAsInvestingActivities
224 Investments in investments held to maturity Concept (Monetary) For Period Credit mtls:OtherCashPaymentsToAcquireInvestmentsInInvestmentsHeldToMaturity
225 Interest received Concept (Monetary) For Period Debit ifrs-full:InterestReceivedClassifiedAsInvestingActivities
226 Net cash flow used in investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
227 Financing activities Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
228 Proceeds from loans and borrowings and convertible debt Concept (Monetary) For Period Debit ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities
229 Repayment of loans and borrowings Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities
230 Repayment of finance leases Concept (Monetary) For Period Credit ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities
231 Proceeds from the exercise of warrants Concept (Monetary) For Period Debit mtls:ProceedsFromExcerciseOfWarrants
232 Capital increase in subsidiary by non-controlling interest Concept (Monetary) For Period Debit mtls:ProceedsFromContributionsByCapitalIncreaseOfNonControllingInterests
233 Purchase of non-controlling interest Concept (Monetary) For Period Credit mtls:PaymentsForPurchaseOfNonControllingInterest
234 Contribution unpaid capital non-controlling interest Concept (Monetary) For Period Debit ifrs-full:ProceedsFromContributionsOfNoncontrollingInterests
235 Capital increase in parent company Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
236 Direct attributable expense capital increase Concept (Monetary) For Period Credit ifrs-full:PaymentsForShareIssueCosts
237 Interest paid Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsFinancingActivities
238 Other financial income (expense) Concept (Monetary) For Period Debit ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities
239 Net cash flow from (used in) financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
240 Net increase of cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges
241 Cash and cash equivalents at beginning of the period Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
242 Exchange rate differences on cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
243 Cash and cash equivalents at end of the period Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
244 1001 - Disclosure - Corporate information Network

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http://www.materialise.com/20171231/role/CorporateInformationTextBlock
245 Implied Table Table

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implied:Table
246 Corporate information [abstract] Abstract mtls:corporateInformationAbstract
247 Disclosure of notes and other explanatory information [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNotesAndOtherExplanatoryInformationExplanatory
248 1002 - Disclosure - Basis of preparation Network

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http://www.materialise.com/20171231/role/BasisOfPreparationTextBlock
249 Implied Table Table

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implied:Table
250 Basis of preparation Abstract mtls:BasisOfPreperation
251 Disclosure of basis of preparation of financial statements [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory
252 1003 - Disclosure - Summary of significant accounting policies Network

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http://www.materialise.com/20171231/role/SummaryOfSignificantAccountingPolicies
253 Implied Table Table

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implied:Table
254 Summary of significant accounting policies [abstract] Abstract mtls:summaryOfSignificantAccountingPoliciesAbstract
255 Disclosure of significant accounting policies [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory
256 1004 - Disclosure - Business combinations Network

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http://www.materialise.com/20171231/role/BusinessCombinationsTextBlock
257 Implied Table Table

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implied:Table
258 Disclosure of detailed information about business combination [abstract] Abstract ifrs-full:DisclosureOfBusinessCombinationsAbstract
259 Disclosure of business combinations [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBusinessCombinationsExplanatory
260 Disclosure of detailed information about business combinations [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory
261 Explanation of any changes in recognised amounts of contingent consideration Concept (Text/String) For Period ifrs-full:ExplanationOfAnyChangesInRecognisedAmountsOfContingentConsideration
262 1005 - Disclosure - Goodwill Network

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http://www.materialise.com/20171231/role/GoodwillTextBlock
263 Implied Table Table

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implied:Table
264 Disclosure of goodwill [abstract] Abstract mtls:disclosureOfGoodwillAbstract
265 Disclosure of goodwill [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGoodwillExplanatory
266 1006 - Disclosure - Intangible assets Network

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http://www.materialise.com/20171231/role/IntangibleAssetsTextBlock
267 Implied Table Table

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268 Disclosure of detailed information about intangible assets [abstract] Abstract ifrs-full:DisclosureOfIntangibleAssetsAbstract
269 Disclosure of intangible assets [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIntangibleAssetsExplanatory
270 1007 - Disclosure - Property, plant & equipment Network

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http://www.materialise.com/20171231/role/PropertyPlantAndEquipmentTextBlock
271 Implied Table Table

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272 Disclosure of detailed information about property, plant and equipment [abstract] Abstract ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
273 Disclosure of property, plant and equipment [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory
274 1008 - Disclosure - Investments in joint ventures Network

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http://www.materialise.com/20171231/role/InvestmentsInJointVentures
275 Implied Table Table

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implied:Table
276 Disclosure of joint ventures [abstract] Abstract ifrs-full:DisclosureOfJointVenturesAbstract
277 Disclosure of joint ventures [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfJointVenturesExplanatory
278 1009 - Disclosure - Inventory Network

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http://www.materialise.com/20171231/role/Inventory
279 Implied Table Table

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280 Inventory [abstract] Abstract mtls:inventoryAbstract
281 Disclosure of Inventories [text block] Concept (Text Block (HTML)) For Period mtls:disclosureOfInventoriesTextBlock
282 Disclosure Other assets [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfOtherAssetsTextBlock
283 1010 - Disclosure - Other assets Network

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http://www.materialise.com/20171231/role/OtherAssets
284 Implied Table Table

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285 Other assets [abstract] Abstract mtls:OtherAssetsAbstract
286 Disclosure of other non-current assets [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfOtherNoncurrentAssetsTextBlockExplanatory
287 Disclosure of other current assets [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfOtherCurrentAssetsTextBlockExplanatory
288 1011 - Disclosure - Trade receivables Network

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289 Implied Table Table

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290 Trade and other receivables [abstract] Abstract ifrs-full:TradeAndOtherReceivablesAbstract
291 Disclosure of trade and other receivables [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory
292 1012 - Disclosure - Cash and cash equivalents Network

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293 Implied Table Table

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294 Cash and cash equivalents [abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
295 Disclosure of cash and cash equivalents [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashAndCashEquivalentsExplanatory
296 1013 - Disclosure - Equity Network

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297 Implied Table Table

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298 Equity [Abstract] Abstract ifrs-full:EquityAbstract
299 Disclosure of share capital, reserves and other equity interest [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory
300 1015 - Disclosure - Loans and borrowings Network

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301 Implied Table Table

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302 Debt instruments held [abstract] Abstract ifrs-full:DebtInstrumentsHeldAbstract
303 Disclosure of loans and advances to banks [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfLoansAndAdvancesToBanksExplanatory
304 1016 - Disclosure - Other non-current liabilities Network

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305 Implied Table Table

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306 Miscellaneous non-current liabilities [abstract] Abstract ifrs-full:MiscellaneousNoncurrentLiabilitiesAbstract
307 Disclosure of other non-current liabilities [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherNoncurrentLiabilitiesExplanatory
308 1017 - Disclosure - Tax payables Network

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309 Implied Table Table

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310 Tax payables [abstract] Abstract mtls:TaxPayablesAbstract
311 Disclosure of tax payables [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfTaxPayablesTextBlockExplanatory
312 1018 - Disclosure - Deferred income Network

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313 Implied Table Table

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314 Accruals and deferred income [abstract] Abstract ifrs-full:AccrualsAndDeferredIncomeAbstract
315 Disclosure of deferred income [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDeferredIncomeExplanatory
316 1019 - Disclosure - Other current liabilities Network

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317 Implied Table Table

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318 Miscellaneous current liabilities [abstract] Abstract ifrs-full:MiscellaneousCurrentLiabilitiesAbstract
319 Disclosure of other current liabilities [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherCurrentLiabilitiesExplanatory
320 1020 - Disclosure - Fair value Network

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321 Implied Table Table

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322 Disclosure of fair value of financial assets [abstract] Abstract mtls:DisclosureFairValueFinancialAssetsAbstract
323 Disclosure of fair value of financial instruments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueOfFinancialInstrumentsExplanatory
324 1021 - Disclosure - Segment information Network

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325 Implied Table Table

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326 Disclosure of operating segments [abstract] Abstract ifrs-full:DisclosureOfOperatingSegmentsAbstract
327 Disclosure of operating segments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOperatingSegmentsExplanatory
328 1022 - Disclosure - Income and expenses Network

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329 Implied Table Table

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330 Disclosure of income and expenses [abstract] Abstract mtls:disclosureIncomeAndExpensesAbstract
331 Disclosure of income and expenses [text block] Concept (Text Block (HTML)) For Period mtls:disclosureIncomeAndExpensesTextBlock
332 Disclosure of revenue [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRevenueExplanatory
333 1023 - Disclosure - Earnings per share Network

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334 Implied Table Table

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335 Earnings per share [abstract] Abstract ifrs-full:EarningsPerShareAbstract
336 Disclosure of earnings per share [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEarningsPerShareExplanatory
337 1024 - Disclosure - Commitments and contingent liabilities Network

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338 Implied Table Table

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339 Capital commitments [abstract] Abstract ifrs-full:CapitalCommitmentsAbstract
340 Disclosure of commitments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCommitmentsExplanatory
341 1025 - Disclosure - Risks Network

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342 Implied Table Table

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343 Risks [abstract] Abstract mtls:risksAbstract
344 Disclosure of financial risk management [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialRiskManagementExplanatory
345 1026 - Disclosure - Related party transactions Network

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346 Implied Table Table

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347 Related party transactions [abstract] Abstract ifrs-full:OutstandingBalancesForRelatedPartyTransactionsAbstract
348 Disclosure of related party [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRelatedPartyExplanatory
349 1027 - Disclosure - Events subsequent to the statement of financial position date Network

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350 Implied Table Table

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351 Disclosure of non-adjusting events after reporting period [abstract] Abstract ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract
352 Disclosure of events after reporting period [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEventsAfterReportingPeriodExplanatory
353 1028 - Disclosure - Overview of consolidated entities Network

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354 Implied Table Table

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355 Overview of consolidated entites [abstract] Abstract mtls:overviewOfConsolidatedEntitiesAbstract
356 Disclosure of interests in subsidiaries [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInterestsInSubsidiariesExplanatory
357 2001 - Disclosure - Basis of preparation (Policies) Network

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358 Implied Table Table

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359 Summary of significant accounting policies [abstract] Abstract mtls:summaryOfSignificantAccountingPoliciesAbstract
360 Disclosure of basis of consolidation [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBasisOfConsolidationExplanatory
361 Description of accounting policy for transactions with non-controlling interests [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForTransactionsWithNoncontrollingInterestsExplanatory
362 Description of accounting policy for foreign currency translation [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory
363 Description of accounting policy for business combinations and goodwill [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForBusinessCombinationsAndGoodwillExplanatory
364 Description of accounting policy for investments in joint ventures [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForInvestmentsInJointVentures
365 Description of accounting policy for property, plant and equipment [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
366 Description of accounting policy for leases [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForLeasesExplanatory
367 Description of accounting policy for borrowing costs [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForBorrowingCostsExplanatory
368 Description of accounting policy for research and development expense [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForResearchAndDevelopmentExpenseExplanatory
369 Description of accounting policy for intangible assets other than goodwill [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory
370 Description of accounting policy for impairment of non-financial assets [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory
371 Description of accounting policy for inventory and contract in progress [text block] Concept (Text Block (HTML)) For Period mtls:DescriptionOfAccountingPolicyForInventoryAndContractInProgressExplanatory
372 Description of accounting policy for financial assets [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialAssetsExplanatory
373 Description of accounting policy for financial liabilities [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialLiabilitiesExplanatory
374 Description of accounting policy for issued capital [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIssuedCapitalExplanatory
375 Description of accounting policy for provisions [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForProvisionsExplanatory
376 Description of accounting policy for employee benefits [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEmployeeBenefitsExplanatory
377 Description of accounting policy for share-based payment transactions [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory
378 Description of accounting policy for recognition of revenue [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue
379 Description of accounting policy for government grants [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForGovernmentGrants
380 Description of accounting policy for finance income and costs [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinanceIncomeAndCostsExplanatory
381 Description of accounting policy for income tax [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
382 Description of accounting policy for taxes other than income tax [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForTaxesOtherThanIncomeTaxExplanatory
383 Disclosure of expected impact of initial application of new standards or interpretations [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations
384 Disclosure of accounting judgements and estimates [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAccountingJudgementsAndEstimatesExplanatory
385 Description of judgements, and changes in judgements, that significantly affect determination of amount and timing of revenue from contracts with customers Concept (Text/String) For Period ifrs-full:DescriptionOfJudgementsAndChangesInJudgementsThatSignificantlyAffectDeterminationOfAmountAndTimingOfRevenueFromContractsWithCustomers
386 Description of judgements, and changes in judgements, that significantly impact the recognition of internally generated intangible assets [text block] Concept (Text Block (HTML)) For Period mtls:descriptionOfJudgementsAndChangesInJudgementsThatSignificantlyImpactTheRecognitionOfInternallyGeneratedIntangibleAssetsTextBlock
387 Description of judgements, and changes in judgements, that significantly impact the determination of the fair values in the accounting for share based payment transactions [text block] Concept (Text Block (HTML)) For Period mtls:descriptionOfJudgementsAndChangesInJudgementsThatSignificantlyImpactTheDeterminationOfTheFairValuesInTheAccountingForShareBasedPaymentTransactionsTextBlock
388 Description of judgements, and changes in judgements, that significantly impact the recognition of deferred tax assets [text block] Concept (Text Block (HTML)) For Period mtls:descriptionOfJudgementsAndChangesInJudgementsThatSignificantlyImpactTheRecognitionOfDeferredTaxAssetsTextBlock
389 Description of judgements, and changes in judgements, that significantly impact the impairment of goodwill, intangible assets and property, plant and equipment [text block] Concept (Text Block (HTML)) For Period mtls:descriptionOfJudgementsAndChangesInJudgementsThatSignificantlyImpactTheImpairmentOfGoodwillIntangibleAssetsAndPropertyPlantAndEquipmentTextBlock
390 Description of judgements, and changes in judgements, that significantly impact the determination of the fair values in the accounting for business combinations [text block] Concept (Monetary) As Of mtls:descriptionOfJudgementsAndChangesInJudgementsThatSignificantlyImpactTheDeterminationOfTheFairValuesInTheAccountingForBusinessCombinationsTextBlock
391 Disclosure of initial application of standards or interpretations [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfInitialApplicationOfStandardsOrInterpretations
392 3002 - Disclosure - Basis of preparation (Tables) Network

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393 Implied Table Table

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394 Basis of preparation Abstract mtls:BasisOfPreperation
395 Disclosure of reclassifications or changes in presentation [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReclassificationsOrChangesInPresentationExplanatory
396 3003 - Disclosure - IFRS 15 tables (Tables) Network

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397 Implied Table Table

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398 IFRS 15 catch-up adjustment [abstract] Abstract mtls:IfrsCatchUpAdjustmentAbstract
399 IFRS 15 catch-up adjustment [text block] Concept (Text Block (HTML)) For Period mtls:IfrsCatchUpTextBlock
400 3004 - Disclosure - Business combinations (Tables) Network

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401 Implied Table Table

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402 Disclosure of detailed information about business combination [abstract] Abstract ifrs-full:DisclosureOfBusinessCombinationsAbstract
403 Acquisition of Aldema [text block] Concept (Text Block (HTML)) For Period mtls:acquisitionOfAldemaTableTextBlock
404 Acquisition of Cenat [text block] Concept (Text Block (HTML)) For Period mtls:acquisitionOfCenatTableTextBlock
405 Acquisition of E-prototypy [text block] Concept (Text Block (HTML)) For Period mtls:acquisitionOfEprototypyTableTextBlock
406 Acquisition of Orthoview [text block] Concept (Text Block (HTML)) For Period mtls:acquisitionOfOrthoviewTableTextBlock
407 Acquisition of ACTech [text block] Concept (Text Block (HTML)) For Period mtls:AcquisitionOfAcTechTableTextBlock
408 3005 - Disclosure - Goodwill (Tables) Network

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409 Implied Table Table

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410 Non-current Assets [Abstract] Abstract ifrs-full:NoncurrentAssetsAbstract
411 Disclosure of information for cash-generating units [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory
412 Disclosure of reconciliation of changes in goodwill [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillExplanatory
413 3006 - Disclosure - Intangible assets (Tables) Network

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414 Implied Table Table

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415 Disclosure of detailed information about intangible assets [abstract] Abstract ifrs-full:DisclosureOfIntangibleAssetsAbstract
416 Disclosure of detailed information about intangible assets [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutIntangibleAssetsExplanatory
417 3007 - Disclosure - Property, plant and equipment (Tables) Network

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418 Implied Table Table

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419 Disclosure of detailed information about property, plant and equipment [abstract] Abstract ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
420 Disclosure of detailed information about property, plant and equipment [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory
421 3008 - Disclosure - Investments in joint ventures (Tables) Network

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422 Implied Table Table

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423 Disclosure of joint ventures [abstract] Abstract ifrs-full:DisclosureOfJointVenturesAbstract
424 Disclosure of joint ventures tables [text block] Concept (Text Block (HTML)) For Period mtls:disclosureOfJointVenturesTablesTextBlock
425 Disclosure of movement carrying value of joint venture [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfMovementCarryingValueOfJointVentureTextBlock
426 3009 - Disclosure - Inventories and other assets (Tables) Network

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427 Implied Table Table

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428 Inventory [abstract] Abstract mtls:inventoryAbstract
429 Disclosure of other non-current assets table [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherNoncurrentAssetsExplanatory
430 Disclosure of inventories [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInventoriesExplanatory
431 Disclosure of other current assets table [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherCurrentAssetsExplanatory
432 Disclosure of other assets [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherAssetsExplanatory
433 3011 - Disclosure - Trade receivables (Tables) Network

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434 Implied Table Table

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435 Trade and other receivables [abstract] Abstract ifrs-full:TradeAndOtherReceivablesAbstract
436 Disclosure of trade receivables [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfTradeReceivablesTextBlock
437 Disclosure of impairment loss (reversal of impairment loss) on trade receivables [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfImpairmentLossreversalOfImparementLossOnTradeReceivablesTextBlock
438 3012 - Disclosure - Cash and cash equivalents (Tables) Network

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439 Implied Table Table

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440 Cash and cash equivalents [abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
441 Disclosure of cash and cash equivalents tables [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfCashAndCashEquivalentsTablesTextBlock
442 3013 - Disclosure - Equity (Tables) Network

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443 Implied Table Table

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444 Equity [Abstract] Abstract ifrs-full:EquityAbstract
445 Disclosure of classes of share capital [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfClassesOfShareCapitalExplanatory
446 Disclosure of reserves within equity [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReservesAndOtherEquityInterestExplanatory
447 3014 - Disclosure - Share based payment plans (Tables) Network

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448 Implied Table Table

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449 Disclosure of terms and conditions of share-based payment arrangement [abstract] Abstract ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract
450 Disclosure of terms and conditions of share-based payment plan arrangements of the parent [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfTermsAndConditionsOfShareBasedPaymentPlanArrangementsOfTheParentTextBlock
451 Disclosure of terms and conditions of share-based payment plan arrangements of the 2013 warrant plan [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfTermsAndConditionsOfShareBasedPaymentPlanArrangementsOfTheTwothousandthirteenWarrantPlanTextBlock
452 Disclosure of terms and conditions of share-based payment plan arrangements of the IPO warrant plan [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfTermsAndConditionsOfShareBasedPaymentPlanArrangementsOfTheIpoWarrantPlanTextBlock
453 Disclosure of terms and conditions of share-based payment plan arrangements of the 2015 warrant plan [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfTermsAndConditionsOfShareBasedPaymentPlanArrangementsOfTheTwothousandfifteenWarrantPlanTextBlock
454 Disclosure of inputs into the model of equity settled share-based payment plans [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfInputsIntoTheModelOfEquitySettledShareBasedPaymentPlansTextBlock
455 Disclosure of terms and conditions of share-based payment plan arrangements of the cash-settled plans [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfTermsAndConditionsOfShareBasedPaymentPlanArrangementsOfTheCashSettledPlansTextBlock
456 Disclosure of inputs into the model of cash settled share-based payment plans [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfInputsIntoTheModelOfCashSettledShareBasedPaymentPlansTextBlock
457 Disclosure of terms and conditions of share-based payment plan arrangements of the Rapidfit+ plan [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfTermsAndConditionsOfShareBasedPaymentPlanArrangementsOfTheRapidfitPlanTextBlock
458 Disclosure of inputs into the model of the Rapidfit+ plan [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfInputsIntoTheModelOfTheRapidfitPlanTextBlock
459 3015 - Disclosure - Loans and borrowings (Tables) Network

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460 Implied Table Table

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461 Debt instruments held [abstract] Abstract ifrs-full:DebtInstrumentsHeldAbstract
462 Disclosure of detailed information about borrowings [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory
463 Disclosure of reconciliation of liabilities arising from financing activities [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesExplanatory
464 3016 - Disclosure - Other non-current liabilities (Tables) Network

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465 Implied Table Table

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466 Miscellaneous non-current liabilities [abstract] Abstract ifrs-full:MiscellaneousNoncurrentLiabilitiesAbstract
467 Disclosure other non-current liabilities [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfOtherNonCurrentLiabilitiesTablesTextBlock
468 3017 - Disclosure - Deferred income (Tables) Network

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469 Implied Table Table

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470 Accruals and deferred income [abstract] Abstract ifrs-full:AccrualsAndDeferredIncomeAbstract
471 Disclosure of information about deferred income [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfDeferredIncomeTableExplanatory
472 3018 - Disclosure - Other current liabilities (Tables) Network

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473 Implied Table Table

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474 Miscellaneous current liabilities [abstract] Abstract ifrs-full:MiscellaneousCurrentLiabilitiesAbstract
475 Disclosure of other current liabilities [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherCurrentLiabilitiesExplanatory
476 3019 - Disclosure - Fair value (Tables) Network

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477 Implied Table Table

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478 Disclosure of fair value of financial assets [abstract] Abstract mtls:DisclosureFairValueFinancialAssetsAbstract
479 Disclosure of fair value measurement of assets [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueMeasurementOfAssetsExplanatory
480 Disclosure of fair value measurement of liabilities [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueMeasurementOfLiabilitiesExplanatory
481 3020 - Disclosure - Segment information (Tables) Network

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482 Implied Table Table

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483 Disclosure of operating segments [abstract] Abstract ifrs-full:DisclosureOfOperatingSegmentsAbstract
484 Disclosure segment information [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfOperatingSegmentsTableTextBlock
485 Disclosure of segment EBITDA [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfSegmentEbitdaTextBlock
486 Disclosure of geographical areas [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGeographicalAreasExplanatory
487 3021 - Disclosure - Income and expenses (Tables) Network

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488 Implied Table Table

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489 Disclosure of income and expenses [abstract] Abstract mtls:disclosureIncomeAndExpensesAbstract
490 Disclosure of revenue by geographical area [text block] Concept (Text Block (HTML)) For Period mtls:revenueByGeographicalAreaTablesTextBlock
491 Disclosure of revenue by category [text block] Concept (Text Block (HTML)) For Period mtls:revenueByCategoryTablesTextBlock
492 Disclosure of cost of sales table [text block] Concept (Text Block (HTML)) For Period mtls:disclosureOfCostOfSalesTablesTextBlock
493 Disclosure of research and development expenses [text block] Concept (Text Block (HTML)) For Period mtls:disclosureOfResearchAndDevelopmentExpensesTablesTextBlock
494 Disclosure of sales and marketing expenses [text block] Concept (Text Block (HTML)) For Period mtls:disclosureOfSalesAndMarketingExpensesTablesTextBlock
495 Disclosure of general and administrative expenses [text block] Concept (Text Block (HTML)) For Period mtls:disclosureOfGeneralAndAdministrativeExpensesTablesTextBlock
496 Disclosure of net other operating income (expense) [text block] Concept (Text Block (HTML)) For Period mtls:disclosureOfNetOtherOperatingIncomeExpenseTablesTextBlock
497 Disclosure of payroll expenses [text block] Concept (Text Block (HTML)) For Period mtls:disclosureOfPayrollExpenseTablesTextBlock
498 Disclosure of financial expenses [text block] Concept (Text Block (HTML)) For Period mtls:disclosureOfFinancialExpensesTablesTextBlock
499 Disclosure of financial income [text block] Concept (Text Block (HTML)) For Period mtls:disclosureOfFinancialIncomeTablesTextBlock
500 3022 - Disclosure - Earnings per share (Tables) Network

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501 Implied Table Table

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502 Earnings per share [abstract] Abstract ifrs-full:EarningsPerShareAbstract
503 Net profit (loss) used for the earnings per share calculation [text block] Concept (Text Block (HTML)) For Period mtls:NetProfitLossUsedForTheEarningsPerShareCalculationTextBlock
504 Share data used for the earnings per share calculation [text block] Concept (Text Block (HTML)) For Period mtls:ShareDataUsedForTheEarningsPerShareCalculationTextBlock
505 Earnings per share [text block] Concept (Text Block (HTML)) For Period ifrs-full:EarningsPerShareExplanatory
506 3022 - Disclosure - Income tax and deferred tax (Tables) Network

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507 Implied Table Table

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508 Income tax and deferred tax [abstract] Abstract mtls:IncomeTaxAndDeferredTaxAbstract
509 Disclosure 0f income tax and deferred tax [text block] Concept (Text Block (HTML)) For Period mtls:DisclosureOfIncomeTaxAndDeferredTaxExplanatory
510 Disclosure of income tax [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIncomeTaxExplanatory
511 Disclosure of deferred taxes [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDeferredTaxesExplanatory
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518 3024 - Disclosure - Risks (Tables) Network

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537 4002 - Disclosure - Summary of significant accounting policies Narrative (Detail) Network

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544 4003 - Disclosure - IFRS 15 tables (Detail) Network

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571 4008 - Disclosure - Business combinations - ACTech (Details) Network

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601 4009 - Disclosure - Business combinations - ACTech Narrative (Detail) Network

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623 4010 - Disclosure - Business combinations - Aldema (Detail) Network

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641 4011 - Disclosure - Business combinations - Aldema Narrative (Detail) Network

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http://www.materialise.com/20171231/role/BusinessCombinationsAldemaNarrativeDetails
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654 4012 - Disclosure - Business combinations - Cenat (Detail) Network

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678 4013 - Disclosure - Business combinations - Cenat Narrative (Detail) Network

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707 4014 - Disclosure - Business combinations - MAT PL (Detail) Network

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735 4015 - Disclosure - Business combinations - Orthoview (Detail) Network

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769 4021 - Disclosure - Goodwill (Detail) Network

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http://www.materialise.com/20171231/role/Goodwill
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781 4021 - Disclosure - Goodwill (Detail) Network

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788 CGU: OrthoView Concept (Monetary) As Of Debit mtls:GoodwillAllocatedToCGUOrthoView
789 CGU: MAT NV Manufacturing (Metal) Concept (Monetary) As Of Debit mtls:GoodwillAllocatedToCGUMatNvManufacturing
790 Total Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
791 4022 - Disclosure - Goodwill - Movement table (Detail) Network

*

*

http://www.materialise.com/20171231/role/GoodwillMovementTableDetail
792 Disclosure of reconciliation of changes in intangible assets and goodwill [table] Table

*

*

ifrs-full:DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillTable
793 Methods of generation [axis] Axis ifrs-full:MethodsOfGenerationAxis
794 Carrying amount [member] Member ifrs-full:CarryingAmountMember
795 Gross carrying amount [member] Member ifrs-full:GrossCarryingAmountMember
796 Accumulated impairment [member] Member ifrs-full:AccumulatedImpairmentMember
797 Orthoview Member mtls:UnitOrthoviewMember
798 Adv. Mach. Member mtls:AdvMachMember
799 e-Prototypy Member mtls:UnitEprototypyMember
800 Marcam Member mtls:MacramMember
801 Cenat Member mtls:UnitCenatMember
802 Mat Metal Member mtls:MatMetalMember
803 ACTech Member mtls:AcTechMember
804 Disclosure of reconciliation of changes in intangible assets and goodwill [line items] LineItems ifrs-full:DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems
805 Goodwill, beginning balance Concept (Monetary) As Of Debit ifrs-full:Goodwill
806 Additional recognition, goodwill Concept (Monetary) For Period Debit ifrs-full:AdditionalRecognitionGoodwill
807 Impairment of goodwill Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossGoodwill
808 Increase (decrease) through net exchange differences, goodwill Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesGoodwill
809 Goodwill, At, ending balance Concept (Monetary) As Of Debit ifrs-full:Goodwill
810 4023 - Disclosure - Goodwill - Movement table Narrative (Detail) Network

*

*

http://www.materialise.com/20171231/role/GoodwillMovementTableNarrativeDetail
811 Disclosure of reconciliation of changes in intangible assets and goodwill [table] Table

*

*

ifrs-full:DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillTable
812 Methods of generation [axis] Axis ifrs-full:MethodsOfGenerationAxis
813 Carrying amount [member] Member ifrs-full:CarryingAmountMember
814 Orthoview Member mtls:UnitOrthoviewMember
815 e-Prototypy Member mtls:UnitEprototypyMember
816 Disclosure of reconciliation of changes in intangible assets and goodwill [line items] LineItems ifrs-full:DisclosureOfReconciliationOfChangesInIntangibleAssetsAndGoodwillLineItems
817 Increase (decrease) through net exchange differences, goodwill Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesGoodwill
818 4024 - Disclosure - Goodwill - Impairment (Detail) Network

*

*

http://www.materialise.com/20171231/role/GoodwillImpairment
819 Disclosure of information for cash-generating units [table] Table

*

*

ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesTable
820 Cash-generating units [axis] Axis ifrs-full:IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis
821 MAT NV SAM BE Member mtls:UnitMatNvSamBeMember
822 e-Prototypy Member mtls:UnitEprototypyMember
823 Rapidfit+ (USA) Member mtls:UnitRapidfitMember
824 Orthoview Member mtls:UnitOrthoviewMember
825 MAT NV AMS BE Member mtls:UnitMatNvAmsBeMember
826 ACTech Member mtls:AcTechMember
827 Disclosure of information for cash-generating units [line items] LineItems ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesLineItems
828 Discount rate Concept (Percent) As Of ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections
829 Perpetual growth rate Concept (Percent) As Of ifrs-full:DescriptionOfGrowthRateUsedToExtrapolateCashFlowProjections
830 Recoverable amount Concept (Monetary) As Of Debit ifrs-full:RecoverableAmountOfAssetOrCashgeneratingUnit
831 Carrying value Concept (Monetary) As Of Debit mtls:CarryingAmountOfAssetOrCashgeneratingUnit
832 Excess Concept (Monetary) As Of Debit ifrs-full:AmountByWhichUnitsRecoverableAmountExceedsItsCarryingAmount
833 Discount rate increase Concept (Percent) As Of mtls:DiscountRateIncreaseForSensitivityAnalysis
834 Perpetual growth rate decrease Concept (Percent) As Of mtls:PerpetualGrowthrateDecreaseForSensitivityAnalysis
835 Perpetual growth rate Concept (Percent) As Of mtls:PerpetualGrowthrateForSensitivityAnalysis
836 4025 - Disclosure - Intangible assets (Detail) Network

*

*

http://www.materialise.com/20171231/role/IntangibleAssets
837 Disclosure of detailed information about intangible assets [table] Table

*

*

ifrs-full:DisclosureOfIntangibleAssetsTable
838 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
839 Total Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
840 Patents and licenses Member ifrs-full:LicencesAndFranchisesMember
841 Software Member ifrs-full:ComputerSoftwareMember
842 Acquired customers and technology Member mtls:TechnologybasedandCustomerrelatedIntangibleAssetsMember
843 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
844 Gross carrying amount [member] Member ifrs-full:GrossCarryingAmountMember
845 Accumulated depreciation and amortisation [member] Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
846 Carrying amount [member] Member ifrs-full:CarryingAmountMember
847 Disclosure of detailed information about intangible assets [line items] LineItems ifrs-full:DisclosureOfIntangibleAssetsLineItems
848 Intangible assets at beginning of period Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
849 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
850 Acquisition of a subsidiary Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
851 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsIntangibleAssetsOtherThanGoodwill
852 Transfer between accounts Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill
853 Currency translation Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill
854 Other Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughOtherChangesIntangibleAssetsOtherThanGoodwill
855 Intangible assets at end of period Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
856 Amortisation, intangible assets other than goodwill Concept (Monetary) For Period ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill
857 4027 - Disclosure - Remaining amortization period on intangibles resulting from business combinations (Detail) Network

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*

http://www.materialise.com/20171231/role/RemainingAmortizationPeriodOnIntangiblesResultingFromBusinessCombinations
858 Disclosure of detailed information about intangible assets [table] Table

*

*

ifrs-full:DisclosureOfIntangibleAssetsTable
859 Methods of generation [axis] Axis ifrs-full:MethodsOfGenerationAxis
860 Internally generated [member] Member ifrs-full:InternallyGeneratedMember
861 e-Prototypy Member mtls:UnitEprototypyMember
862 Orthoview Member mtls:UnitOrthoviewMember
863 ACTech Member mtls:AcTechMember
864 Cenat Member mtls:UnitCenatMember
865 General Member mtls:GeneralGeneratedMember
866 Disclosure of detailed information about intangible assets [abstract] Abstract ifrs-full:DisclosureOfIntangibleAssetsAbstract
867 Remaining amortization method [line items] Abstract mtls:RemainingAmortizationPeriodOnIntangiblesResultingFromBusinessCombinationsAbstract
868 Additions other than through business combinations, intangible assets other than goodwill Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
869 Remaining amortization period software related intangible assets acquisition Concept (Decimal) As Of mtls:RemainingAmortizationPeriodSoftwareRelatedIntangibleAssetsAcquisitionAcTech
870 Remaining amortization period patent and licenses related intangible assets acquisition Concept (Decimal) As Of mtls:RemainingAmortizationPeriodPatentAndLicensesRelatedIntangibleAssetsAcquisitionAcTech
871 Remaining amortization period customer related intangible assets acquisition Concept (Decimal) As Of mtls:RemainingAmortizationPeriodCustomerRelatedIntangibleAssetsAcquisitionAcTech
872 Capitalized software development expenditure net of funding Concept (Monetary) As Of Debit mtls:CapitalizedSoftwareDevelopmentExpenditureNetOfFunding
873 Remaining amortization period technology related intangible assets acquisition Concept (Decimal) As Of mtls:RemainingAmortizationPeriodTechnologyRelatedIntangibleAssetsAcquisition
874 4027 - Disclosure - Remaining amortization period on intangibles resulting from business combinations (Detail) Network

*

*

http://www.materialise.com/20171231/role/RemainingAmortizationPeriodOnIntangiblesResultingFromBusinessCombinations
875 Implied Table Table

*

*

implied:Table
876 Disclosure of detailed information about intangible assets [abstract] Abstract ifrs-full:DisclosureOfIntangibleAssetsAbstract
877 Remaining amortization method [line items] Abstract mtls:RemainingAmortizationPeriodOnIntangiblesResultingFromBusinessCombinationsAbstract
878 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
879 Remaining amortization period software related intangible assets acquisition Concept (Decimal) As Of mtls:RemainingAmortizationPeriodSoftwareRelatedIntangibleAssetsAcquisitionAcTech
880 Remaining amortization period patent and licenses related intangible assets acquisition Concept (Decimal) As Of mtls:RemainingAmortizationPeriodPatentAndLicensesRelatedIntangibleAssetsAcquisitionAcTech
881 Remaining amortization period customer related intangible assets acquisition Concept (Decimal) As Of mtls:RemainingAmortizationPeriodCustomerRelatedIntangibleAssetsAcquisitionAcTech
882 Capitalized software development expenditure net of funding Concept (Monetary) As Of Debit mtls:CapitalizedSoftwareDevelopmentExpenditureNetOfFunding
883 Remaining amortization period technology related intangible assets acquisition Concept (Decimal) As Of mtls:RemainingAmortizationPeriodTechnologyRelatedIntangibleAssetsAcquisition
884 4028 - Disclosure - Property, plant and equipment (Detail) Network

*

*

http://www.materialise.com/20171231/role/PropertyPlantAndEquipment
885 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
886 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
887 Total Member ifrs-full:PropertyPlantAndEquipmentMember
888 Land and buildings Member ifrs-full:LandAndBuildingsMember
889 Plant and equipment Member ifrs-full:MachineryMember
890 Leased assets Member mtls:LeasedAssetsMember
891 Construction in progress Member ifrs-full:ConstructionInProgressMember
892 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
893 Gross carrying amount [member] Member ifrs-full:GrossCarryingAmountMember
894 Accumulated depreciation and amortisation [member] Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
895 Carrying amount [member] Member ifrs-full:CarryingAmountMember
896 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
897 Property, plant and equipment beginning of period Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
898 Depreciation charge for the year Concept (Monetary) For Period ifrs-full:DepreciationPropertyPlantAndEquipment
899 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
900 Acquired from business combinations Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment
901 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsPropertyPlantAndEquipment
902 Transfers Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment
903 Currency Translation Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment
904 Other Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment
905 Property, plant and equipment end of period Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
906 4030 - Disclosure - Capital expenditures (Detail) Network

*

*

http://www.materialise.com/20171231/role/CapitalExpenditures
907 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
908 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
909 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
910 Land and buildings [member] Member ifrs-full:LandAndBuildingsMember
911 Machinery [member] Member ifrs-full:MachineryMember
912 Leased assets [member] Member mtls:LeasedAssetsMember
913 Construction in progress [member] Member ifrs-full:ConstructionInProgressMember
914 Disclosure of detailed information about property, plant and equipment [abstract] Abstract ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
915 Capital expenditures [line items] Abstract mtls:CapitalExpendituresAbstract
916 new machines and installations acquired and leased Concept (Monetary) As Of Debit mtls:IncreaseThroughNewMachinesAndInstallationsPropertyPlantAndEquipment
917 computer and IT infrastructure Concept (Monetary) As Of Debit mtls:IncreaseThroughComputerEquipmentPropertyPlantAndEquipment
918 acquired land in Leuven Concept (Monetary) As Of Debit mtls:IncreaseThroughAcquiredLandPropertyPlantAndEquipment
919 acquired to Poland Concept (Monetary) As Of Debit mtls:IncreaseThroughAcquiredLandPolandPropertyPlantAndEquipment
920 new building constructions Concept (Monetary) As Of Debit mtls:IncreaseThroughBuildingConstructionsPropertyPlantAndEquipment
921 Increase through other acquisitions Concept (Monetary) As Of Debit mtls:IncreaseThroughOtherAcquisitionsPropertyPlantAndEquipment
922 AUC under land and building Concept (Monetary) As Of Debit mtls:LandAndBuildingsInAssetsUnderConstructionPropertyPlantAndEquipment
923 Finance leases - machines, net Concept (Monetary) As Of Debit mtls:TotalNetFinanceLeasesMachineryPropertyPlantAndEquipment
924 Finance leases - building, net Concept (Monetary) As Of mtls:TotalNetFinanceLeasesBuildingsPropertyPlantAndEquipment
925 Finance leases - total, net Concept (Monetary) As Of Debit mtls:TotalNetFinanceLeasesPropertyPlantAndEquipment
926 Borrowing costs capitalised Concept (Monetary) For Period ifrs-full:BorrowingCostsCapitalised
927 Property, plant and equipment, pledged as security Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipmentPledgedAsSecurity
928 New finance leases Concept (Monetary) As Of Debit mtls:AdditionsFinanceLeasesPropertyPlantAndEquipment
929 Increase through leased motor vehicles Concept (Monetary) As Of Debit mtls:IncreaseThroughLeasedMotorVehicles
930 Net loss on disposal of property, plant and equipment Concept (Monetary) For Period Debit mtls:NetLossOnDisposalOfPPE
931 Total accumulated depreciation finance leases machinery property, plant and equipment Concept (Monetary) As Of Credit mtls:TotalAccumulatedDepreciationFinanceLeasesMachineryPropertyPlantAndEquipment
932 Additions finance leases motor vehicles property, plant and equipment Concept (Monetary) As Of Credit mtls:AdditionsFinanceLeasesMotorVehiclesPropertyPlantAndEquipment
933 Land and buildings pledges as security Concept (Monetary) As Of Debit mtls:LandAndBuildingsPledgesAsSecurity
934 4030 - Disclosure - Capital expenditures (Detail) Network

*

*

http://www.materialise.com/20171231/role/CapitalExpenditures
935 Implied Table Table

*

*

implied:Table
936 Disclosure of detailed information about property, plant and equipment [abstract] Abstract ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
937 Capital expenditures [line items] Abstract mtls:CapitalExpendituresAbstract
938 new machines and installations acquired and leased Concept (Monetary) As Of Debit mtls:IncreaseThroughNewMachinesAndInstallationsPropertyPlantAndEquipment
939 computer and IT infrastructure Concept (Monetary) As Of Debit mtls:IncreaseThroughComputerEquipmentPropertyPlantAndEquipment
940 acquired land in Leuven Concept (Monetary) As Of Debit mtls:IncreaseThroughAcquiredLandPropertyPlantAndEquipment
941 acquired to Poland Concept (Monetary) As Of Debit mtls:IncreaseThroughAcquiredLandPolandPropertyPlantAndEquipment
942 new building constructions Concept (Monetary) As Of Debit mtls:IncreaseThroughBuildingConstructionsPropertyPlantAndEquipment
943 Increase through other acquisitions Concept (Monetary) As Of Debit mtls:IncreaseThroughOtherAcquisitionsPropertyPlantAndEquipment
944 AUC under land and building Concept (Monetary) As Of Debit mtls:LandAndBuildingsInAssetsUnderConstructionPropertyPlantAndEquipment
945 Finance leases - machines, net Concept (Monetary) As Of Debit mtls:TotalNetFinanceLeasesMachineryPropertyPlantAndEquipment
946 Finance leases - building, net Concept (Monetary) As Of mtls:TotalNetFinanceLeasesBuildingsPropertyPlantAndEquipment
947 Finance leases - total, net Concept (Monetary) As Of Debit mtls:TotalNetFinanceLeasesPropertyPlantAndEquipment
948 Borrowing costs capitalised Concept (Monetary) For Period ifrs-full:BorrowingCostsCapitalised
949 Property, plant and equipment, pledged as security Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipmentPledgedAsSecurity
950 New finance leases Concept (Monetary) As Of Debit mtls:AdditionsFinanceLeasesPropertyPlantAndEquipment
951 Increase through leased motor vehicles Concept (Monetary) As Of Debit mtls:IncreaseThroughLeasedMotorVehicles
952 Net loss on disposal of PPE Concept (Monetary) For Period Debit mtls:NetLossOnDisposalOfPPE
953 Total accumulated depreciation finance leases machinery property, plant and equipment Concept (Monetary) As Of Credit mtls:TotalAccumulatedDepreciationFinanceLeasesMachineryPropertyPlantAndEquipment
954 Additions finance leases motor vehicles property, plant and equipment Concept (Monetary) As Of Credit mtls:AdditionsFinanceLeasesMotorVehiclesPropertyPlantAndEquipment
955 Land and buildings pledges as security Concept (Monetary) As Of Debit mtls:LandAndBuildingsPledgesAsSecurity
956 4031 - Disclosure - Investment in associates and joint ventures (Detail) Network

*

*

http://www.materialise.com/20171231/role/InvestmentInAssociatesAndJointVentures
957 Disclosure of joint ventures [table] Table

*

*

ifrs-full:DisclosureOfJointVenturesTable
958 Joint ventures [axis] Axis ifrs-full:JointVenturesAxis
959 Entity's total for joint ventures [member] Member ifrs-full:EntitysTotalForJointVenturesMember
960 Disclosure of joint ventures [line items] LineItems ifrs-full:DisclosureOfJointVenturesLineItems
961 Shareholders' Equity Concept (Monetary) As Of Credit ifrs-full:Equity
962 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
963 Non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
964 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
965 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
966 Non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
967 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
968 Net loss for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
969 4032 - Disclosure - Investment in associates and joint ventures Nattarive (Detail) Network

*

*

http://www.materialise.com/20171231/role/InvestmentInAssociatesAndJointVenturesNarrativeDetail
970 Disclosure of joint ventures [table] Table

*

*

ifrs-full:DisclosureOfJointVenturesTable
971 Joint ventures [axis] Axis ifrs-full:JointVenturesAxis
972 Entity's total for joint ventures [member] Member ifrs-full:EntitysTotalForJointVenturesMember
973 Disclosure of joint ventures [line items] LineItems ifrs-full:DisclosureOfJointVenturesLineItems
974 IFRS adjustment retained earnings 1/1/2016 Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
975 IFRS adjustment retained earnings 1/1/2016 - 50% Concept (Monetary) As Of Credit mtls:RetainedEarningsAdjustment
976 Carrying value investment in books Concept (Monetary) As Of Debit ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates
977 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
978 Non-current financial liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentFinancialLiabilities
979 Current financial liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentFinancialLiabilities
980 Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
981 Interest income Concept (Monetary) For Period Credit ifrs-full:InterestIncomeOnOtherFinancialAssets
982 Interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
983 Total tax expense (income) Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
984 Unrecognized losses Concept (Monetary) For Period Debit ifrs-full:UnrecognisedShareOfLossesOfJointVentures
985 4033 - Disclosure - Detail movement (Detail) Network

*

*

http://www.materialise.com/20171231/role/DetailMovement
986 Detail movement [table] Table

*

*

mtls:DetailMovementTable
987 Legal entity [axis] Axis dei:LegalEntityAxis
988 Consolidated entity [member] Member mtls:ConsolidatedEntityMember
989 Investments in subsidiaries, joint ventures and associates [abstract] Abstract ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociatesAbstract
990 Detail movement [line items] Abstract mtls:DetailMovementAbstract
991 Additional investment Concept (Monetary) As Of Debit mtls:AdditionInInvestmentsInSubsidiariesJointVenturesAndAssociates
992 Share in loss of joint venture Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
993 Investments in joint ventures Concept (Monetary) As Of Debit ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates
994 4033 - Disclosure - Detail movement (Detail) Network

*

*

http://www.materialise.com/20171231/role/DetailMovement
995 Implied Table Table

*

*

implied:Table
996 Investments in subsidiaries, joint ventures and associates [abstract] Abstract ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociatesAbstract
997 Detail movement [line items] Abstract mtls:DetailMovementAbstract
998 Investments in joint ventures, beginning balance Concept (Monetary) As Of Debit ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates
999 Additional investment Concept (Monetary) As Of Debit mtls:AdditionInInvestmentsInSubsidiariesJointVenturesAndAssociates
1000 Share in loss of joint venture Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
1001 Investments in joint ventures, ending balance Concept (Monetary) As Of Debit ifrs-full:InvestmentsInSubsidiariesJointVenturesAndAssociates
1002 4034 - Disclosure - Inventory and Contracts in Progress (Detail) Network

*

*

http://www.materialise.com/20171231/role/Inventory and Contracts in ProgressDetail
1003 Implied Table Table

*

*

implied:Table
1004 Inventory and contracts in progress [abstract] Abstract mtls:InventoryAbstract
1005 Raw materials Concept (Monetary) As Of Debit ifrs-full:RawMaterials
1006 Work in progress Concept (Monetary) As Of Debit ifrs-full:WorkInProgress
1007 Finished goods Concept (Monetary) As Of Debit ifrs-full:FinishedGoods
1008 Contracts in progress Concept (Monetary) As Of mtls:ContractsInProgress
1009 Total inventories (at cost or net realizable value) Concept (Monetary) As Of Debit ifrs-full:InventoriesAtNetRealisableValue
1010 4035 - Disclosure - Inventory and Contracts in Progress Narrative (Detail) Network

*

*

http://www.materialise.com/20171231/role/InventoryAndContractsInProgressNarrativeDisclosure
1011 Implied Table Table

*

*

implied:Table
1012 Inventory and contracts in progress [abstract] Abstract mtls:InventoryAbstract
1013 Total costs incurred contract in progress Concept (Monetary) For Period Debit mtls:TotalCostsIncurredContractsInProgress
1014 Total profid recognized contracts in progress Concept (Monetary) For Period Credit mtls:TotalProfitRecognizedContractsInProgress
1015 Total contracts in progress included in work in progress Concept (Monetary) As Of Debit mtls:TotalContractsInProgressIncludedInWorkInProgress
1016 Total amount inventory written off as an expense Concept (Monetary) For Period Debit mtls:TotalAmountInventoryWrittenOffAsAnExpense
1017 4037 - Disclosure - Other non-current assets (Detail) Network

*

*

http://www.materialise.com/20171231/role/OtherNoncurrentAssets
1018 Implied Table Table

*

*

implied:Table
1019 Other non-current assets [abstract] Abstract ifrs-full:MiscellaneousNoncurrentAssetsAbstract
1020 Tax credits Concept (Monetary) As Of Debit mtls:TaxCreditsOtherNoncurrentAssets
1021 Guarantees and deposits Concept (Monetary) As Of Debit mtls:LongTermGuaranteesAndDeposits
1022 Non-current receivable on joint venture Concept (Monetary) As Of Debit mtls:NonCurrentReceivableOnJointVenture
1023 Other Concept (Monetary) As Of Debit mtls:OtherOtherNoncurrentAssets
1024 Total non-current assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
1025 4038 - Disclosure - Other current assets (Detail) Network

*

*

http://www.materialise.com/20171231/role/OtherCurrentAssets
1026 Implied Table Table

*

*

implied:Table
1027 Miscellaneous current assets [abstract] Abstract ifrs-full:MiscellaneousCurrentAssetsAbstract
1028 Deferred charges Concept (Monetary) As Of Debit mtls:DeferredChargesOtherCurrentAssets
1029 Tax credits Concept (Monetary) As Of Debit mtls:TaxCreditsOtherCurrentAssets
1030 Accrued income Concept (Monetary) As Of Debit ifrs-full:CurrentAccruedIncome
1031 Other tax receivables Concept (Monetary) As Of Debit ifrs-full:CurrentReceivablesFromTaxesOtherThanIncomeTax
1032 Other non-trade receivables Concept (Monetary) As Of Debit ifrs-full:OtherCurrentReceivables
1033 Total current assets Concept (Monetary) As Of Debit ifrs-full:OtherCurrentAssets
1034 4039 - Disclosure - Other current assets Narrative (Detail) Network

*

*

http://www.materialise.com/20171231/role/OtherCurrentAssetsNarrativeDetail
1035 Other current assets Narrative [table] Table

*

*

mtls:OtherCurrentAssetsNarrativeTable
1036 Legal entity [axis] Axis dei:LegalEntityAxis
1037 Consolidated entity [member] Member mtls:ConsolidatedEntityMember
1038 Miscellaneous current assets [abstract] Abstract ifrs-full:MiscellaneousCurrentAssetsAbstract
1039 Miscellaneous current assets Narrative [line items] Abstract mtls:MiscellaneousCurrentAssetsNarrativeLineItemsAbstract
1040 Receivable related to factoring included in non-trade receivables Concept (Monetary) As Of Debit mtls:ReceivableRelatedToFactoringInNonTradeReceivable
1041 Receivable related to factoring included trade receivables Concept (Monetary) As Of Debit mtls:ReceivableRelatedToFactoringInTradeReceivable
1042 Indemnification assets Concept (Monetary) As Of Debit mtls:IndemnificationAssets
1043 4039 - Disclosure - Other current assets Narrative (Detail) Network

*

*

http://www.materialise.com/20171231/role/OtherCurrentAssetsNarrativeDetail
1044 Implied Table Table

*

*

implied:Table
1045 Miscellaneous current assets [abstract] Abstract ifrs-full:MiscellaneousCurrentAssetsAbstract
1046 Miscellaneous current assets Narrative [line items] Abstract mtls:MiscellaneousCurrentAssetsNarrativeLineItemsAbstract
1047 Receivable related to factoring included in non-trade receivables Concept (Monetary) As Of Debit mtls:ReceivableRelatedToFactoringInNonTradeReceivable
1048 Receivable related to factoring included trade receivables Concept (Monetary) As Of Debit mtls:ReceivableRelatedToFactoringInTradeReceivable
1049 Indemnification assets Concept (Monetary) As Of Debit mtls:IndemnificationAssets
1050 4040 - Disclosure - Trade receivables (Detail) Network

*

*

http://www.materialise.com/20171231/role/TableDetail
1051 Trade receivables [table] Table

*

*

mtls:TradeReceivablesTable
1052 Legal entity [axis] Axis dei:LegalEntityAxis
1053 Consolidated entity [member] Member mtls:ConsolidatedEntityMember
1054 Trade and other current receivables [abstract] Abstract ifrs-full:TradeAndOtherCurrentReceivablesAbstract
1055 Trade receivables [line items] Abstract mtls:TradeReceivablesLineItemsAbstract
1056 Trade receivables gross carrying amount Concept (Monetary) As Of Debit mtls:TradeReceivablesGrossCarryingAmount
1057 Amortization receivables Concept (Monetary) As Of Credit mtls:TradeReceivablesAccumulatedAmortization
1058 Trade receivables Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
1059 4040 - Disclosure - Trade receivables (Detail) Network

*

*

http://www.materialise.com/20171231/role/TableDetail
1060 Implied Table Table

*

*

implied:Table
1061 Trade and other current receivables [abstract] Abstract ifrs-full:TradeAndOtherCurrentReceivablesAbstract
1062 Trade receivables [line items] Abstract mtls:TradeReceivablesLineItemsAbstract
1063 Trade receivables Concept (Monetary) As Of Debit mtls:TradeReceivablesGrossCarryingAmount
1064 Amortization receivables Concept (Monetary) As Of Credit mtls:TradeReceivablesAccumulatedAmortization
1065 Total Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
1066 4042 - Disclosure - Movement table bad debt reserve (Detail) Network

*

*

http://www.materialise.com/20171231/role/MovementTableBadDebtReserve
1067 Implied Table Table

*

*

implied:Table
1068 Overview of impairment changes to receivables [abstract] Abstract ifrs-full:ImpairmentLossReversalOfImpairmentLossOnTradeReceivablesAbstract
1069 At the beginning of the period Concept (Monetary) As Of Credit mtls:ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivablesBeginningOfPeriod
1070 Addition Concept (Monetary) For Period Debit ifrs-full:ImpairmentLossRecognisedInProfitOrLossTradeReceivables
1071 Usage Concept (Monetary) As Of Credit mtls:UsageImpairmentLossRecognisedInProfitOrLossTradeReceivables
1072 Reversal Concept (Monetary) For Period Credit ifrs-full:ReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables
1073 At the end of the period Concept (Monetary) For Period Debit ifrs-full:ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossTradeReceivables
1074 4043 - Disclosure - Cash and cash equivalents (Detail) Network

*

*

http://www.materialise.com/20171231/role/CashAndCashEquivalentsAndHeldToMaturityInvestments
1075 Cash and cash equivalents [table] Table

*

*

mtls:CashAndCashEquivalentsTable
1076 Legal entity [axis] Axis dei:LegalEntityAxis
1077 Consolidated entity [member] Member mtls:ConsolidatedEntityMember
1078 Cash and cash equivalents [abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
1079 Cash and cash equivalents [line items] Abstract mtls:CashAndCashEquivalentsLineItemsAbstract
1080 Cash at bank Concept (Monetary) As Of Debit ifrs-full:BalancesWithBanks
1081 Cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashEquivalents
1082 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
1083 4043 - Disclosure - Cash and cash equivalents (Detail) Network

*

*

http://www.materialise.com/20171231/role/CashAndCashEquivalentsAndHeldToMaturityInvestments
1084 Implied Table Table

*

*

implied:Table
1085 Cash and cash equivalents [abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
1086 Cash and cash equivalents [line items] Abstract mtls:CashAndCashEquivalentsLineItemsAbstract
1087 Cash at bank Concept (Monetary) As Of Debit ifrs-full:BalancesWithBanks
1088 Cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashEquivalents
1089 Total Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
1090 4044 - Disclosure - Cash and cash equivalents Narrative (Detail) Network

*

*

http://www.materialise.com/20171231/role/CashAndCashEquivalentsAndHeldToMaturityInvestmentsNarrativeDetails
1091 Implied Table Table

*

*

implied:Table
1092 Cash and cash equivalents [abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
1093 Current restricted cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CurrentRestrictedCashAndCashEquivalents
1094 Months Concept (Decimal) As Of mtls:DurationInvestmentsHeldToMaturity
1095 Restricted bank account from exercise of warrants Concept (Monetary) As Of Debit mtls:RestrictedBankAccountFromExerciseOfWarrants
1096 Amounts from exercise of warrants not executed Concept (Monetary) As Of Debit mtls:AmountsFromExerciseOfWarrantsNotExecuted
1097 4045 - Disclosure - Equity (Detail) Network

*

*

http://www.materialise.com/20171231/role/EquityDetail
1098 Disclosure of classes of share capital [table] Table

*

*

ifrs-full:DisclosureOfClassesOfShareCapitalTable
1099 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1100 Founder Shares [Member] Member mtls:FounderSharesMember
1101 Total number of ordinary shares Member ifrs-full:OrdinarySharesMember
1102 Total shareholders' capital [member] Member mtls:TotalShareholdersCapitalMember
1103 Total share-premium [member] Member mtls:TotalSharePremiumMember
1104 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1105 Outstanding, shares, beginning of period Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1106 Outstanding, beginning of period Concept (Monetary) As Of mtls:OutstandingSharesMonetary
1107 Share capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
1108 Share premium Concept (Monetary) As Of Credit ifrs-full:SharePremium
1109 Transfer share capital to share premium Concept (Monetary) For Period Debit mtls:TransferShareCapitalToSharePremium
1110 Capital increase in cash number of shares Concept (Shares) As Of mtls:CapitalIncreaseCashNumberOfShares
1111 Capital increase in cash Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughOtherContributionsByOwners
1112 Capital increase via exercise warrants on, number of shares Concept (Shares) As Of mtls:CapitalIncreaseExerciseWarrantsNumberOfShares
1113 Equity-settled share-based payment expense Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
1114 Capital increase in cash price per share Concept (Share) As Of mtls:CapitalIncreaseInCashPricePerShare
1115 Capital increase exercise warrants price per share Concept (Share) As Of mtls:CapitalIncreaseExerciseWarrantsPricePerShare
1116 Capital increase via exercise warrants Concept (Monetary) As Of Credit mtls:CapitalIncreaseViaExerciseWarrants
1117 Outstanding, shares, end of period Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1118 Outstanding, end of period Concept (Monetary) As Of mtls:OutstandingSharesMonetary
1119 4046 - Disclosure - Equity Narrative (Detail) Network

*

*

http://www.materialise.com/20171231/role/EquityNarrativeDetail
1120 Disclosure of classes of share capital [table] Table

*

*

ifrs-full:DisclosureOfClassesOfShareCapitalTable
1121 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1122 Founder Shares [Member] Member mtls:FounderSharesMember
1123 Ordinary shares [member] Member ifrs-full:OrdinarySharesMember
1124 Total shareholders' capital [member] Member mtls:TotalShareholdersCapitalMember
1125 Total share-premium [member] Member mtls:TotalSharePremiumMember
1126 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1127 Share capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
1128 Outstanding Number of Shares Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1129 Tranfer share capital to share premium - correction Concept (Monetary) For Period Debit mtls:TransferShareCapitalToSharePremium
1130 Capital increase in cash number of shares Concept (Shares) As Of mtls:CapitalIncreaseCashNumberOfShares
1131 Capital increase in cash price per share Concept (Share) As Of mtls:CapitalIncreaseInCashPricePerShare
1132 Capital increase in cash Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughOtherContributionsByOwners
1133 Share premium Concept (Monetary) As Of Credit ifrs-full:SharePremium
1134 Equity-settled share-based payment expense Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
1135 Capital increase through excercise of warrants Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughExerciseOfWarrantsEquity
1136 Par value per share Concept (Share) As Of ifrs-full:ParValuePerShare
1137 4047 - Disclosure - Reserve table (Detail) Network

*

*

http://www.materialise.com/20171231/role/ReserveTable
1138 Other reserves [table] Table

*

*

mtls:OtherReservesTable
1139 Legal entity [axis] Axis dei:LegalEntityAxis
1140 Consolidated entity [member] Member mtls:ConsolidatedEntityMember
1141 Other reserves [abstract] Abstract ifrs-full:OtherReservesAbstract
1142 Other reserves [line items] Abstract mtls:OtherReservesLineItemsAbstract
1143 Statutory reserve Concept (Monetary) As Of Credit ifrs-full:StatutoryReserve
1144 IFRS adjustment retained earnings 1/1/2016 Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
1145 Consolidated reserves Concept (Monetary) For Period Credit mtls:ConsolidatedReserves
1146 4047 - Disclosure - Reserve table (Detail) Network

*

*

http://www.materialise.com/20171231/role/ReserveTable
1147 Implied Table Table

*

*

implied:Table
1148 Other reserves [abstract] Abstract ifrs-full:OtherReservesAbstract
1149 Other reserves [line items] Abstract mtls:OtherReservesLineItemsAbstract
1150 Legal reserve Concept (Monetary) As Of Credit ifrs-full:StatutoryReserve
1151 Retained earnings Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
1152 Consolidated reserves Concept (Monetary) For Period Credit mtls:ConsolidatedReserves
1153 4048 - Disclosure - Reserve table and non-controlling interest Narrative (Detail) Network

*

*

http://www.materialise.com/20171231/role/ReserveTableNarrativeDetail
1154 Reserve [table] Table

*

*

mtls:ReserveTable
1155 Reserve [axis] Axis mtls:ReservesTableAxis
1156 Total equity [Member] Member ifrs-full:EquityMember
1157 Total equity attributable to the owners of the parents [member] Member ifrs-full:EquityAttributableToOwnersOfParentMember
1158 Reserve [line items] LineItems mtls:ReservesTableLineItems
1159 Legal reserves percent increase Concept (Percent) As Of mtls:LegalReservesPercentIncrease
1160 Legal reserve max percent of capital Concept (Percent) As Of mtls:LegalReserveMaxPercentOfCapital
1161 Non-controlling interest percent in rapdit fit Concept (Percent) As Of mtls:NonControllingInterestPercentInRapditFit
1162 Acquisition NCI Mobelife Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary
1163 Written put option Rapid Fit Plus Concept (Monetary) As Of mtls:WrittenPutOptionRapidFitPlus
1164 Written put option Rapid Fit Plus undiscounted estimated redemption amount Concept (Monetary) As Of Credit mtls:WrittenPutOptionRapidFitPlusUnDiscountedEstimatedRedemptionAmount
1165 Written put option Rapid Fit Plus initial reclassification from non-controlling interest Concept (Monetary) As Of Credit mtls:WrittenPutOptionRapidFitPlusInitialReclassificationFromNonControllingInterest
1166 Written put option Rapid Fit Plus iniitial reclassification from consolidated reserves Concept (Monetary) As Of Credit mtls:WrittenPutOptionRapidFitPlusIniitialReclassificationFromConsolidatedReserves
1167 Written put option Rapid Fit Plus increase/decrease written put option Concept (Monetary) As Of Credit mtls:WrittenPutOptionRapidFitPlusIncreaseDecreaseWrittenPutOption
1168 Issued dilution warrants to non-controlling interest Concept (Shares) For Period mtls:IssuedDilutionWarrantstoNonControllingINterest
1169 Issued dilution warrants fair value Concept (Monetary) As Of Credit mtls:IssuedDilutionWarrantsFairValue
1170 4049 - Disclosure - Share-based payment plan (Detail) Network

*

*

http://www.materialise.com/20171231/role/SharebasedPaymentPlanDetail
1171 Disclosure of share-based payment plan [table] Table

*

*

mtls:DisclosureOfShareBasedPaymentPlanTable
1172 Warrant plan category [axis] Axis mtls:ShareBasedPaymentPlanCategoryAxis
1173 All warrants plan [member] Member mtls:AllWarrantsPlansMember
1174 All plans Materialise [member] Member mtls:AllPlansMaterialiseMember
1175 2007-2013 plan [member] Member mtls:TwothousandsevenToTwothousandthirteenWarrantsPlansMember
1176 IPO plan [member] Member mtls:IpoPlanMember
1177 IPO plan cash settled [member] Member mtls:IpoCashSettledPlansMember
1178 2015 plan [member] Member mtls:TwothousandfifteenWarrantsPlanMember
1179 Rapidfit+ plan [member] Member mtls:RapdriftPlansMember
1180 Disclosure of share-based payment plan [line items] LineItems mtls:DisclosureOfShareBasedPaymentPlanLineItems
1181 Outstanding at beginning of period Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1182 Granted Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
1183 Forfeited / Cancelled Concept (Decimal) For Period mtls:NumberOfSharesOptionsForfeitedCancelledInShareBasedPaymentArrangements
1184 Exercised Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
1185 Outstanding at end of period Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1186 Exercisable at the end of period Concept (Decimal) As Of ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement
1187 4051 - Disclosure - Details grants Materialise cash settled (Detail) Network

*

*

http://www.materialise.com/20171231/role/DetailsGrantsMaterialiseCashSettledDetail
1188 Disclosure of details grants Materialise cash settled [table] Table

*

*

mtls:DisclosureOfDetailsGrantsMaterialiseCashSettledTable
1189 Based payment plan [axis] Axis mtls:BasedPaymentPlanAxis
1190 All payment plans [member] Member mtls:AllPaymentPlansMember
1191 Materialise cash settled share based payment plan [member] Member mtls:MaterialiseCashSettledShareBasedPaymentPlanMember
1192 Disclosure of details grants materialise cash settled [line items] LineItems mtls:DisclosureOfDetailsGrantsMaterialiseCashSettledLineItems
1193 Return dividend Concept (Percent) For Period ifrs-full:ExpectedDividendAsPercentageShareOptionsGranted
1194 Expected volatility Concept (Percent) For Period ifrs-full:DescriptionOfExpectedVolatilityShareOptionsGranted
1195 Risk-free interest rate Concept (Percent) For Period ifrs-full:DescriptionOfRiskFreeInterestRateShareOptionsGranted
1196 Expected life Concept (Decimal) For Period ifrs-full:DescriptionOfOptionLifeShareOptionsGranted
1197 Exercise price Concept (Monetary) For Period ifrs-full:ExercisePriceShareOptionsGranted
1198 Stock price Concept (Monetary) For Period ifrs-full:WeightedAverageSharePriceShareOptionsGranted
1199 Fair value SAR Concept (Monetary) For Period mtls:FairValueSharesOptionsGranted
1200 4052 - Disclosure - Details grants Materialise (Detail) Network

*

*

http://www.materialise.com/20171231/role/DetailsGrantsMaterialiseDetail
1201 Disclosure of details grants Materialise [table] Table

*

*

mtls:DisclosureOfDetailsGrantsMaterialiseTable
1202 Payment assumptions [axis] Axis mtls:PaymentAssumptionsCategoryAxis
1203 All payment assumptions [member] Member mtls:AllPaymentAssumptionsMember
1204 Plan 2015 (sept 16) [member] Member mtls:PlanTothousandfifteenShareBasedPaymentAssumptionsMember
1205 IPO 2015 (Nov) [member] Member mtls:IpoTwothousandfifteenShareBasedPaymentAssumptionsMember
1206 IPO 2014 (Nov) [member] Member mtls:IpoTwothousandfpurteenNovShareBasedPaymentAssumptionsMember
1207 IPO 2014 (June) [member] Member mtls:IpoTwothousandfourteenJuneShareBasedPaymentAssumptionsMember
1208 2013 (Dec) [member] Member mtls:TwothousandthirteenDecShareBasedPaymentAssumptionsMember
1209 2013 (Oct) [member] Member mtls:TwothousandthirteenOctShareBasedPaymentAssumptionsMember
1210 2007 [member] Member mtls:TwothousandsevenShareBasedPaymentAssumptionsMember
1211 Disclosure of details grants Materialise [line items] LineItems mtls:DisclosureOfDetailsGrantsMaterialiseLineItems
1212 Return dividend Concept (Percent) For Period ifrs-full:ExpectedDividendAsPercentageShareOptionsGranted
1213 Expected volatility Concept (Percent) For Period ifrs-full:DescriptionOfExpectedVolatilityShareOptionsGranted
1214 Risk-free interest rate Concept (Percent) For Period ifrs-full:DescriptionOfRiskFreeInterestRateShareOptionsGranted
1215 Expected life Concept (Decimal) For Period ifrs-full:DescriptionOfOptionLifeShareOptionsGranted
1216 Exercise price Concept (Monetary) For Period ifrs-full:ExercisePriceShareOptionsGranted
1217 Stock price Concept (Monetary) For Period ifrs-full:WeightedAverageSharePriceShareOptionsGranted
1218 Fair value option Concept (Monetary) For Period mtls:FairValueSharesOptionsGranted
1219 4053 - Disclosure - Details share-based payment arrangements Materialise (Details) Network

*

*

http://www.materialise.com/20171231/role/DetailsShareBasedPaymentArrangementsMaterialiseDetails
1220 Disclosure of details share-based payment arrangements Materialise [table] Table

*

*

mtls:DisclosureOfDetailsShareBasedPaymentArrangementsMaterialiseTable
1221 Warrant plan category [axis] Axis mtls:ShareBasedPaymentPlanCategoryAxis
1222 All warrants plan [member] Member mtls:AllWarrantsPlansMember
1223 2007-2013 plan [member] Member mtls:TwothousandsevenToTwothousandthirteenWarrantsPlansMember
1224 IPO plan [member] Member mtls:IpoPlanMember
1225 2015 plan [member] Member mtls:TwothousandfifteenWarrantsPlanMember
1226 SAR [member] Member mtls:SarMember
1227 Mobelife [member] Member mtls:MobelifeMember
1228 Mobelife plan 2012 [member] Member mtls:MobelifePlanTwothousandtwelveMember
1229 Disclosure of details share-based payment arrangements Materialise [line items] LineItems mtls:DisclosureOfDetailsShareBasedPaymentArrangementsMaterialseLineItems
1230 Contractual term Concept (Decimal) For Period mtls:ContractualTermShareOptions
1231 vesting% first period Concept (Percent) As Of mtls:VestingPercFirstPeriodShareOptions
1232 vesting% second period Concept (Percent) As Of mtls:VestingPercSecondPeriodShareOptions
1233 vesting% third period Concept (Percent) As Of mtls:VestingPercThirdPeriodShareOptions
1234 vesting% fourth period Concept (Percent) As Of mtls:VestingPercFourthPeriodShareOptions
1235 Number of warrants granted 1 Concept (Decimal) For Period mtls:NumberOfInstrumentsGrantedInSharebasedPaymentArrangementOne
1236 Number of warrants granted 2 Concept (Decimal) For Period mtls:NumberOfInstrumentsGrantedInSharebasedPaymentArrangementTwo
1237 Number of warrants granted 3 Concept (Decimal) For Period mtls:NumberOfInstrumentsGrantedInSharebasedPaymentArrangementThree
1238 Exercise price range 1 Concept (Monetary) As Of Debit mtls:RangeOfExercisePricesBottomOfRange
1239 Exercise price range 2 Concept (Monetary) As Of Debit mtls:RangeOfExercisePricesTopOfRange
1240 Maximum number of warrants Concept (Shares) As Of mtls:MaximumNumberOfWarrants
1241 Number of warrants exercised Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
1242 Number of warrants outstanding after stock split Concept (Monetary) As Of Debit mtls:NumberOfWarrantsOutstandingAfterStockSplit
1243 Weighted average share price at exercise date Concept (Monetary) For Period mtls:WeightedAverageExercisePriceOfShareOptionsExercisedOrVestedInShareBasedPaymentArrangement
1244 4054 - Disclosure - Details expense and weighted average (Detail) Network

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*

http://www.materialise.com/20171231/role/DetailsExpenseAndWeightedAverageDetail
1245 Details expense and weighted average [table] Table

*

*

mtls:DetailsExpenseAndWeightedAverageTable
1246 Details expense and weighted average [axis] Axis mtls:DetailsExpenseAndWeightedAverageAxis
1247 Details expense and weighted average [domain member] Member mtls:DetailsExpenseAndWeightedAverageDomainMember
1248 Details expense and weighted average [line items] LineItems mtls:DetailsExpenseAndWeightedAverageLineItems
1249 Expense for equity-settled share-based payment Materialise Concept (Monetary) For Period Debit ifrs-full:ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets
1250 Expense for cash-settled shared-based payment Materialise Concept (Monetary) For Period Debit ifrs-full:ExpenseFromCashsettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets
1251 Weighted-average remaining estimated life Concept (Monetary) For Period mtls:WeightedAverageRemainingEstimatedLifeShareOptions
1252 Weighted-average fair value of warrants outstanding Concept (Monetary) For Period mtls:WeightedAverageFairValueOfWarrantsOutstanding
1253 Weighted average exercise price of other equity instruments outstanding in share-based payment arrangement at end of period Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
1254 Cash settled liability share options granted Concept (Monetary) As Of Credit mtls:CashSettledLiabilityShareOptionsGranted
1255 Instrinsic-value cash-settled warrants Concept (Monetary) As Of Credit mtls:IntrinsicValueCashSettledWarrants
1256 4054 - Disclosure - Rapidfit details grants (Detail) Network

*

*

http://www.materialise.com/20171231/role/RapdriftDetailsGrantsDetail
1257 Disclosure of Rapidfit+ details grants [table] Table

*

*

mtls:DisclosureOfRapdriftDetailsGrantsTable
1258 Based payment plan [axis] Axis mtls:BasedPaymentPlanAxis
1259 All payment plans [member] Member mtls:AllPaymentPlansMember
1260 Rapidfit+ plan [member] Member mtls:RapdriftPlansMember
1261 Disclosure of Rapidfit+ details grants [line items] LineItems mtls:DisclosureOfRapdriftDetailsGrantsLineItems
1262 Outstanding at beginning of period Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1263 Granted Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
1264 Forfeited / Cancelled Concept (Decimal) For Period mtls:NumberOfSharesOptionsForfeitedCancelledInShareBasedPaymentArrangements
1265 Exercised Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
1266 Outstanding at end of period Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1267 Exerciseable Concept (Decimal) As Of ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement
1268 Maximum number of warrants Concept (Shares) As Of mtls:MaximumNumberOfWarrants
1269 Return dividend Concept (Percent) For Period ifrs-full:ExpectedDividendAsPercentageShareOptionsGranted
1270 Expected volatility Concept (Percent) For Period ifrs-full:DescriptionOfExpectedVolatilityShareOptionsGranted
1271 Risk-free interest rate Concept (Percent) For Period ifrs-full:DescriptionOfRiskFreeInterestRateShareOptionsGranted
1272 Expected life Concept (Decimal) For Period ifrs-full:DescriptionOfOptionLifeShareOptionsGranted
1273 Exercise price Concept (Monetary) For Period ifrs-full:ExercisePriceShareOptionsGranted
1274 Number of warrants granted Concept (Monetary) As Of Credit mtls:NumberOfWarrantsGranted
1275 Expense from equity-settled share-based payment transactions in which goods or services received did not qualify for recognition as assets Concept (Monetary) For Period Debit ifrs-full:ExpenseFromEquitysettledSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets
1276 4055 - Disclosure - Loans and borrowings (Detail) Network

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*

http://www.materialise.com/20171231/role/NewTableOverviewDetail
1277 Details loans and borrowings [table] Table

*

*

mtls:DisclosureLoansAndBorrowingsDetailTable
1278 Legal entity [axis] Axis dei:LegalEntityAxis
1279 Consolidated entity [member] Member mtls:ConsolidatedEntityMember
1280 Details loans and borrowings [line items] LineItems mtls:DisclosureLoansAndBorrowingsDetailLineItems
1281 K EUR 28,000 acquisition bank loan Concept (Monetary) As Of Credit mtls:KeurTwentyeightthousandAcquisitionLoan
1282 K EUR 18,000 secured bank loans (construction Belgium/Poland) Concept (Monetary) As Of Credit mtls:KeurEightteenthousandSecuredBankLoanConstructionBelgiumPoland
1283 K EUR 11,250 bank loans ACTech Concept (Monetary) As Of Credit mtls:KeurEleventhousandtwohundredfiftyBankLoanAcTech
1284 K EUR 8,750 other facility loans Concept (Monetary) As Of Credit mtls:KeurEightthousandsevenhundredfiftyOtherFacilityLoan
1285 Bank investment loans - top 20 outstanding Concept (Monetary) As Of Credit mtls:BankInvestmentLoansTopTwentyOutstanding
1286 Bank investment loans - other Concept (Monetary) As Of Credit mtls:BankInvestmentLoansOther
1287 Financial lease agreements Concept (Monetary) As Of Credit mtls:FinanceLeaseAgreement
1288 Institutional loan Concept (Monetary) As Of Credit mtls:InstitutionalLoan
1289 Convertible loan Concept (Monetary) As Of mtls:ConvertibleLoan
1290 Related party loan Concept (Monetary) As Of Credit mtls:RelatedPartyLoan
1291 Total loans and borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
1292 current Concept (Monetary) As Of Credit ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings
1293 non-current Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
1294 4058 - Disclosure - Loans and borrowings Narrative (Detail) Network

*

*

http://www.materialise.com/20171231/role/TextValuesLoansAndBorrowingsDetail
1295 Details loans and borrowings Narrative [table] Table

*

*

mtls:DetailsLoansAndBorrowingsNarrativeDetailTable
1296 Legal entity [axis] Axis dei:LegalEntityAxis
1297 Consolidated entity [member] Member mtls:ConsolidatedEntityMember
1298 Details loans and borrowings Narrative [line items] LineItems mtls:DetailsLoansAndBorrowingsNarrativeDetailLineItems
1299 Loan Principal K EUR 28,000 Concept (Monetary) As Of Credit mtls:KeurTwentyeightthousandAcquisitionLoanNotional
1300 Monthly reimbursable portion Concept (Monetary) As Of Credit mtls:KeurTwentyeightthousandAcquisitionLoanOneNotional
1301 Period for monthly reimbursable portion Concept (Decimal) For Period mtls:KeurTwentyeightthousandAcquisitionPeriodForMonthlyReimbursablePortion
1302 Bullet portion Concept (Monetary) As Of Credit mtls:KeurTwentyeightthousandAcquisitionLoanTwoNotional
1303 Interest percentage Concept (Percent) As Of mtls:KeurTwentyeightthousandAcquisitionLoanNotionalPercent
1304 Loan principal K EUR 18,000 Concept (Monetary) As Of Credit mtls:KeurEightteenthousandSecuredBankLoanConstructionBelgiumPoland
1305 Belgian facility financing Concept (Monetary) As Of Credit mtls:KeurEightteenthousandSecuredBankLoanConstructionBelgium
1306 Drawn Concept (Monetary) As Of Credit mtls:KeurEightteenthousandSecuredBankLoanConstructionBelgiumDrawn
1307 Polish facility financing Concept (Monetary) As Of Credit mtls:KeurEightteenthousandSecuredBankLoanConstructionPoland
1308 Drawn Concept (Monetary) As Of Credit mtls:KeurEightteenthousandSecuredBankLoanConstructionPolandDrawn
1309 Interest percentage Concept (Percent) As Of mtls:KeurEighteenthousandSecuredBankLoanConstructionBelgiumPolandAverageInterestPercent
1310 Loan principal K EUR 11,250 Concept (Monetary) As Of Credit mtls:KeurEleventhousandtwohundredfiftyBankLoanAcTechNotional
1311 Maturing June 2023 Concept (Monetary) As Of Credit mtls:KeurEleventhousandtwohundredfiftyBankLoanAcTechMaturityJuneTwothousandtwentythree
1312 Maturing June 2021 Concept (Monetary) As Of Credit mtls:KeurEleventhousandtwohundredfiftyBankLoanAcTechMaturityJuneTwothousandtwentyone
1313 Interest percentage Concept (Percent) As Of mtls:KeurEleventhousandtwohundredfiftyBankLoanAcTechInterestPercent
1314 Refinanced part March 2018 Concept (Monetary) As Of Credit mtls:KeurEleventhousandtwohundredfiftyBankLoanAcTechRefinanceTwothousandeighteenPortion
1315 Interest percentage Concept (Percent) As Of mtls:KeurEleventhousandtwohundredfiftyBankLoanAcTechRefinancedTwothousandeighteenInterestPercent
1316 Mortgage Concept (Monetary) As Of Credit mtls:KeurEleventhousandtwohundredfiftyBankLoanAcTechMortgage
1317 Loan principal K EUR 8,750 Concept (Monetary) As Of Credit mtls:KeurEightthousandsevenhundredfiftyOtherFacilityLoanGross
1318 Facility loan 2005 Concept (Monetary) As Of Credit mtls:KeurEightthousandsevenhundredfiftyOtherFacilityLoanGrossTwothousandfive
1319 Facility loan 2006 Concept (Monetary) As Of Credit mtls:copyOfKeurEightthousandsevenhundredfiftyOtherFacilityLoanGrossTwothousandsix
1320 Facility loan 2012 Concept (Monetary) As Of Credit mtls:copyOfcopyOfKeurEightthousandsevenhundredfiftyOtherFacilityLoanGrossTwothousandtwelve
1321 Czech republic offices loan 2008 Concept (Monetary) As Of Credit mtls:copyOfcopyOfcopyOfKeurEightthousandsevenhundredfiftyOtherFacilityLoanGrossCzTwothousandeight
1322 Balance of the loans Concept (Monetary) As Of Credit mtls:KeurEightthousandsevenhundredfiftyOtherFacilityLoan
1323 Repayment schedule Concept (Decimal) For Period mtls:KeurEightthousandsevenhundredfiftyItherFacilityLoanGrossRepaymentSchedule
1324 Interest rate lower range Concept (Percent) As Of mtls:KeurEightthousandsevenhundredfiftyOtherFacilityLoanGrossInterextPercentBottomRange
1325 Interest rate upper range Concept (Percent) As Of mtls:KeurEightthousandsevenhundredfiftyOtherFacilityLoanGrossInterextPercentTopRange
1326 Miscellaneous investment loans [abstract] Abstract mtls:MiscellaneousInvestmentLoansAbstract
1327 Reimbursement period Concept (Decimal) For Period mtls:BankInvestmentLoansReimbursementPeriod
1328 Weighted average interest rate Concept (Percent) As Of mtls:BankInvestmentLoansWeightedAverageInterestPercent
1329 Finance lease obligations third parties [abstract] Abstract mtls:FinanceLeaseObligationsThirdPartiesAbstract
1330 Weighted average interest rate Concept (Percent) As Of mtls:FinanceLeaseAgreementsWeightedAverageInterestPercent
1331 Institutional loan K EUR 1,142 Concept (Monetary) As Of Credit mtls:InstutitionalLoanNotional
1332 Reimbursement period Concept (Decimal) For Period mtls:InstitutionalLoanReimbursementPeriod
1333 Interest rate Concept (Percent) As Of mtls:InstitutionalLoanInterestPercent
1334 Amount drawn Concept (Monetary) As Of Credit mtls:InstitutionalLoanAmountDrawn
1335 Convertible bond K EUR 1,000 Concept (Monetary) As Of Credit mtls:ConvertibleLoanNotional
1336 Convertible number of bonds Concept (Decimal) As Of mtls:ConvertibleLoanNumberOfBonds
1337 Nominal value per bond Concept (Monetary) As Of Credit mtls:ConvertibleLoanNominalValue
1338 Contractual life Concept (Decimal) For Period mtls:ConvertibleLoanContractualLife
1339 Interest rate Concept (Percent) As Of mtls:ConvertibleLoanInterestRate
1340 Conversion price Concept (Decimal) For Period mtls:ConvertibleLoanConversionPrice
1341 Fair value Concept (Monetary) As Of Credit mtls:ConvertibleLoanFairValue
1342 Amount recognized in consolidated reserves Concept (Monetary) As Of Credit mtls:ConvertibleLoanAmountRecognizedInConsolidatedReserves
1343 K EUR 1,000 convertible bond - max number of shares to be issued Concept (Shares) As Of mtls:ConvertibleLoanMaxNumberOfSharesToBeIssued
1344 Finance lease obligations related parties [abstract] Abstract mtls:FinanceLeaseObligationsRelatedPartiesAbstract
1345 Lease term Concept (Decimal) For Period mtls:FinanceLeaseRelatedPartyLeaseTerm
1346 Amounts outstanding Concept (Monetary) As Of Credit mtls:FinanceLeaseRelatedPartyOutstanding
1347 Interest expense Concept (Decimal) For Period mtls:FinanceLeaseRelatedPartyInterestExpense
1348 Related party loan [abstract] Abstract mtls:RelatedPartyLoanAbstract
1349 Interest rate Concept (Percent) As Of mtls:RelatedPartyLoanInterestPercent
1350 Related party loan - interest expense Concept (Monetary) For Period mtls:RelatedPartyLoanInteresExpense
1351 K EUR 28,000 acquisition bank loan Concept (Monetary) As Of Credit mtls:KeurTwentyeightthousandAcquisitionLoan
1352 K EUR 11,250 bank loans ACTech Concept (Monetary) As Of Credit mtls:KeurEleventhousandtwohundredfiftyBankLoanAcTech
1353 4059 - Disclosure - Movement table (Detail) Network

*

*

http://www.materialise.com/20171231/role/MovementTableDetail
1354 Disclosure movement table [table] Table

*

*

mtls:DisclosureMovementTableDetailTable
1355 Legal entity [axis] Axis dei:LegalEntityAxis
1356 Consolidated entity [member] Member mtls:ConsolidatedEntityMember
1357 Disclosure of movement table [abstract] Abstract mtls:DisclosureOfMovementTableAbstract
1358 Detail movement table [line items] Abstract mtls:DetailMovementTableDetailLineItemsAbstract
1359 Liabilities arising from financing activities Concept (Monetary) As Of Credit ifrs-full:LiabilitiesArisingFromFinancingActivities
1360 Proceeds from loans and borrowings and convertible debt Concept (Monetary) For Period Debit ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities
1361 Repayment of loans and borrowings Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities
1362 Increase through new leases, liabilities arising from financing activities Concept (Monetary) For Period Credit ifrs-full:IncreaseThroughNewLeasesLiabilitiesArisingFromFinancingActivities
1363 Repayment of finance leases Concept (Monetary) For Period Credit ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities
1364 Increase (decrease) through obtaining or losing control of subsidiaries or other businesses, liabilities arising from financing activities Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities
1365 Increase (decrease) through effect of changes in foreign exchange rates, liabilities arising from financing activities Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities
1366 4059 - Disclosure - Movement table (Detail) Network

*

*

http://www.materialise.com/20171231/role/MovementTableDetail
1367 Implied Table Table

*

*

implied:Table
1368 Disclosure of movement table [abstract] Abstract mtls:DisclosureOfMovementTableAbstract
1369 Detail movement table [line items] Abstract mtls:DetailMovementTableDetailLineItemsAbstract
1370 Balance at beginning of period Concept (Monetary) As Of Credit ifrs-full:LiabilitiesArisingFromFinancingActivities
1371 Proceeds from loans and borrowings Concept (Monetary) For Period Debit ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities
1372 Repayment of loans and borrowings Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities
1373 New finance leases Concept (Monetary) For Period Credit ifrs-full:IncreaseThroughNewLeasesLiabilitiesArisingFromFinancingActivities
1374 Repayment of finance leases Concept (Monetary) For Period Credit ifrs-full:PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities
1375 Loans acquired from business combination Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities
1376 Net foreign exchange movements Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities
1377 Balance at end of period Concept (Monetary) As Of Credit ifrs-full:LiabilitiesArisingFromFinancingActivities
1378 4060 - Disclosure - Other non-current liabilities (Detail) Network

*

*

http://www.materialise.com/20171231/role/OtherNonCurrentLiabilities
1379 Miscellaneous non-current liabilities [table] Table

*

*

mtls:MiscellaneousNonCurrentLiabilitiesTable
1380 Miscellaneous non-current liabilities [axis] Axis mtls:MiscellaneousNonCurrentLiabilitiesAxis
1381 Miscellaneous non-current liabilities [domain member] Member mtls:MiscellaneousNonCurrentLiabilitiesDomainMember
1382 Miscellaneous non-current liabilities [line items] LineItems mtls:MiscellaneousNonCurrentLiabilitiesLineItems
1383 Written put option Rapid Fit Plus Concept (Monetary) As Of mtls:WrittenPutOptionRapidFitPlus
1384 Written put option on NCI Concept (Monetary) As Of Credit mtls:WrittenPutOptionOnNCI
1385 Contingent consideration Concept (Monetary) As Of Credit mtls:NonCurrentContingentConsiderationFromBusinessCombination
1386 Non-current advances received Concept (Monetary) As Of Credit ifrs-full:NoncurrentAdvances
1387 Non-current provisions Concept (Monetary) As Of Credit mtls:NonCurrentProvisions
1388 Other miscellaneous non-current liabilities Concept (Monetary) As Of Credit mtls:OtherOtherNoncurrentLiabilities
1389 Total Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
1390 4062 - Disclosure - Deferred income (Detail) Network

*

*

http://www.materialise.com/20171231/role/DeferredIncome
1391 Implied Table Table

*

*

implied:Table
1392 Accruals and deferred income [abstract] Abstract ifrs-full:AccrualsAndDeferredIncomeAbstract
1393 Deferred maintenance and license Concept (Monetary) As Of Credit mtls:DeferredMaintenanceAndLicense
1394 Deferred (project) fees Concept (Monetary) As Of Credit mtls:DeferredProjectFees
1395 Deferred government grants Concept (Monetary) As Of Credit mtls:DeferredGovernmentGrants
1396 Other Concept (Monetary) As Of Credit mtls:DeferredOtherIncome
1397 Total Concept (Monetary) As Of Credit ifrs-full:DeferredIncome
1398 of which Abstract mtls:CurrentAndNonCurrentAssetsAbstract
1399 Deferred income classified as current Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsCurrent
1400 Deferred income, non-current liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsNoncurrent
1401 4063 - Disclosure - Other current liabilities (Detail) Network

*

*

http://www.materialise.com/20171231/role/OtherCurrentLiabilities
1402 Implied Table Table

*

*

implied:Table
1403 Miscellaneous current liabilities [abstract] Abstract ifrs-full:MiscellaneousCurrentLiabilitiesAbstract
1404 Payroll-related liabilities Concept (Monetary) As Of Credit ifrs-full:ShorttermEmployeeBenefitsAccruals
1405 Non-income tax payables Concept (Monetary) As Of Credit mtls:NonIncomeTaxPayablesClassifiedAsCurrent
1406 Accrued charges Concept (Monetary) As Of Credit ifrs-full:AccrualsClassifiedAsCurrent
1407 Advances received Concept (Monetary) As Of Credit ifrs-full:CurrentAdvances
1408 Other current liabilities Concept (Monetary) As Of Credit ifrs-full:OtherCurrentPayables
1409 Total Concept (Monetary) As Of Credit ifrs-full:OtherCurrentLiabilities
1410 4065 - Disclosure - Tax Payables Narrative (Detail) Network

*

*

http://www.materialise.com/20171231/role/TaxPayablesNarrativeDetails
1411 Implied Table Table

*

*

implied:Table
1412 Disclosure of tax payables [abstract] Abstract mtls:DisclosureOfTaxPayablesAbstract
1413 Tax payables Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilitiesCurrent
1414 Tax payable related to ACTech Concept (Monetary) As Of Credit mtls:TaxPayableRelatedToAcTech
1415 Tax payable related to ACTech 2007 Concept (Monetary) As Of Credit mtls:TaxPayableRelatedToAcTechTwothousandseventeen
1416 4066 - Disclosure - Fair value of financial assets (Detail) Network

*

*

http://www.materialise.com/20171231/role/FairValueFinancialAssetsDetail
1417 Disclosure of fair value of financial assets [table] Table

*

*

mtls:DisclosureOfFairValueFinancialAssetsTable
1418 Fair value category [axis] Axis mtls:FairValueCategoryAxis
1419 All fair value categories [member] Member mtls:AllFairValueCategoriesMember
1420 At carrying value [member] Member mtls:AtCarryingVlueMember
1421 Not measured at fair value in statement of financial position but for which fair value is disclosed [member] Member ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember
1422 Disclosure of fair value of financial assets [line items] LineItems mtls:DisclosureOfFairValueFinancialAssetsLineItems
1423 Total loans and other receivables Concept (Monetary) As Of Debit mtls:LoansAndReceivablesAtAmortizedCost
1424 Trade receivables (current) Concept (Monetary) As Of Debit ifrs-full:TradeReceivables
1425 Other financial assets (non-current) Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentFinancialAssets
1426 Other current non-trade receivables Concept (Monetary) As Of Debit mtls:OtherNonTradeReceivablesClassifiedAsCurrent
1427 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
1428 Total finacial assets measured at fair value Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAtFairValue
1429 Derivates Concept (Monetary) As Of Debit mtls:DerivatesHeldForTrading
1430 4067 - Disclosure - Fair value of financial liabilities (Detail) Network

*

*

http://www.materialise.com/20171231/role/FairValueFinancialLiabilitiesDetail
1431 Disclosure of fair value of financial liabilities [table] Table

*

*

mtls:DisclosureOfFairValueFinancialLiabilitiesTable
1432 Fair value category [axis] Axis mtls:FairValueCategoryAxis
1433 All fair value categories [member] Member mtls:AllFairValueCategoriesMember
1434 At carrying value [member] Member mtls:AtCarryingVlueMember
1435 Not measured at fair value in statement of financial position but for which fair value is disclosed [member] Member ifrs-full:NotMeasuredAtFairValueInStatementOfFinancialPositionButForWhichFairValueIsDisclosedMember
1436 Disclosure of fair value of financial liabilities [line items] LineItems mtls:DisclosureOfFairValueFinancialLiabilitiesLineItems
1437 Financial liabilities at amortised cost Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilitiesAtAmortisedCost
1438 Loans and borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
1439 Trade payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayablesToTradeSuppliers
1440 Other financial liabilities Concept (Monetary) As Of Credit ifrs-full:OtherFinancialLiabilities
1441 Total financial liability measured at fair value Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilitiesAtFairValue
1442 Contingent consideration Concept (Monetary) As Of Credit mtls:ContingentConsiderationFromBusinessCombination
1443 Written put option on NCI Concept (Monetary) As Of Credit mtls:WrittenPutOptionOnNCI
1444 Derivates Concept (Monetary) As Of Credit mtls:DerivateFinancialLiabilities
1445 Total non-current Concept (Monetary) As Of Credit ifrs-full:NoncurrentFinancialLiabilities
1446 Total current Concept (Monetary) As Of Credit ifrs-full:CurrentFinancialLiabilities
1447 4068 - Disclosure - Fair value Narrative (Detail) Network

*

*

http://www.materialise.com/20171231/role/FairValueNarrativeDetails
1448 Sensitivity analysis [table] Table

*

*

mtls:sensivityAnalysisTable
1449 Legal entity [axis] Axis dei:LegalEntityAxis
1450 Consolidated entity [member] Member mtls:ConsolidatedEntityMember
1451 Disclosure of fair value of financial assets [abstract] Abstract mtls:DisclosureFairValueFinancialAssetsAbstract
1452 Fair value Narrative [line items] Abstract mtls:FairValueNarrativeAbstract
1453 Contingent consideration arrangements and indemnification assets recognised as of acquisition date Concept (Monetary) As Of Debit ifrs-full:ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate
1454 Written put option expense of the period Concept (Monetary) For Period Debit mtls:WrittenPutOptionExpenseOfThePeriod
1455 Fair value contingent consideration, consideration as per final accounting date Concept (Monetary) As Of mtls:FairValueContingentConsiderationConsiderationAsPerFinalAccountingDate
1456 Contingent Consideration from Business Combinations Concept (Monetary) As Of Credit mtls:ContingentConsiderationFromBusinessCombination
1457 Decrease of future hardware revenue (percent) Concept (Percent) As Of mtls:DecreaseIncreaseOfFutureHardwareRevenuePercent
1458 Decrease of future hardware revenue impact Concept (Monetary) For Period Credit mtls:DecreaseIncreaseOfFutureHardwareRevenueImpact
1459 Higher production costs (percent) Concept (Percent) As Of mtls:HigherLoweProductionCostsPercent
1460 Higher production costs impact Concept (Monetary) For Period Debit mtls:HigherLoweProductionCostsImpact
1461 Increase of future hardware revenue (percent) Concept (Percent) As Of mtls:IncreaseOfFutureHardwareRevenuePercent
1462 Increase of future hardware revenue impact Concept (Monetary) For Period Credit mtls:IncreaseOfFutureHardwareRevenueImpact
1463 Lower production costs (percent) Concept (Percent) As Of mtls:LowerProductionCostsPercent
1464 Lower production costs impact Concept (Monetary) For Period Debit mtls:LowerProductionCostsImpact
1465 4068 - Disclosure - Fair value Narrative (Detail) Network

*

*

http://www.materialise.com/20171231/role/FairValueNarrativeDetails
1466 Implied Table Table

*

*

implied:Table
1467 Disclosure of fair value of financial assets [abstract] Abstract mtls:DisclosureFairValueFinancialAssetsAbstract
1468 Fair value Narrative [line items] Abstract mtls:FairValueNarrativeAbstract
1469 Contingent consideration from business Concept (Monetary) As Of Debit ifrs-full:ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate
1470 Written put option expense of the period Concept (Monetary) For Period Debit mtls:WrittenPutOptionExpenseOfThePeriod
1471 Fair value contingent consideration, consideration as per final accounting date Concept (Monetary) As Of mtls:FairValueContingentConsiderationConsiderationAsPerFinalAccountingDate
1472 Contingent Consideration from Business Combinations Concept (Monetary) As Of Credit mtls:ContingentConsiderationFromBusinessCombination
1473 Decrease of future hardware revenue (percent) Concept (Percent) As Of mtls:DecreaseIncreaseOfFutureHardwareRevenuePercent
1474 Increase of future hardware revenue (percent) Concept (Percent) As Of mtls:IncreaseOfFutureHardwareRevenuePercent
1475 Decrease of future hardware revenue impact Concept (Monetary) For Period Credit mtls:DecreaseIncreaseOfFutureHardwareRevenueImpact
1476 Increase of future hardware revenue impact Concept (Monetary) For Period Credit mtls:IncreaseOfFutureHardwareRevenueImpact
1477 Higher production costs (percent) Concept (Percent) As Of mtls:HigherLoweProductionCostsPercent
1478 Lower production costs (percent) Concept (Percent) As Of mtls:LowerProductionCostsPercent
1479 Higher production costs impact Concept (Monetary) For Period Debit mtls:HigherLoweProductionCostsImpact
1480 Lower production costs impact Concept (Monetary) For Period Debit mtls:LowerProductionCostsImpact
1481 4069 - Disclosure - Segment information (Detail) Network

*

*

http://www.materialise.com/20171231/role/SegmentInformation
1482 Disclosure of operating segments [table] Table

*

*

ifrs-full:DisclosureOfOperatingSegmentsTable
1483 Segment consolidation items [axis] Axis ifrs-full:SegmentConsolidationItemsAxis
1484 Consolidated Segments [member] Member mtls:ConsolidatedSegmentsMember
1485 Total segments Member ifrs-full:EntitysTotalForSegmentConsolidationItemsMember
1486 Materialise Software Member mtls:OperatingSegmentsMaterialiseSoftwareMember
1487 Materialise Medical Member mtls:OperatingSegmentsMaterialiseMedicalMember
1488 Materialise Manufacturing Member mtls:OperatingSegmentsMaterialiseMember
1489 Adjustments and eliminations Member ifrs-full:MaterialReconcilingItemsMember
1490 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
1491 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
1492 Segment EBITDA Concept (Monetary) For Period Credit mtls:Ebitda
1493 Segment EBITDA % Concept (Percent) As Of mtls:EbitdaPercent
1494 4070 - Disclosure - Segment reconciliation (Detail) Network

*

*

http://www.materialise.com/20171231/role/SegmentReconciliation
1495 Disclosure of operating segments [table] Table

*

*

ifrs-full:DisclosureOfOperatingSegmentsTable
1496 Segments [axis] Axis ifrs-full:SegmentsAxis
1497 Segments [member] Member ifrs-full:SegmentsMember
1498 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
1499 Segment EBITDA Concept (Monetary) For Period Credit mtls:Ebitda
1500 Depreciation, amortization and impairment Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
1501 Corporate research and development Concept (Monetary) For Period Debit mtls:CorporateResearchAndDevelopmentExpense
1502 Corporate headquarter costs Concept (Monetary) For Period Debit mtls:CorporateHeadquarterExpense
1503 Other operating income (expense) Concept (Monetary) For Period Credit mtls:OtherOperatingIncome
1504 Operating (loss) profit Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
1505 Financial expenses Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
1506 Financial income Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
1507 Total tax expense (income) Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1508 Share in loss of joint venture Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
1509 Net loss for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
1510 4071 - Disclosure - Revenue and Non-Current Assets by geographical areas (Detail) Network

*

*

http://www.materialise.com/20171231/role/SegmentReconciliationOfGeographicalAreas
1511 Disclosure of geographical areas [table] Table

*

*

ifrs-full:DisclosureOfGeographicalAreasTable
1512 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1513 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1514 Country of domicile [member] Member ifrs-full:CountryOfDomicileMember
1515 Foreign countries [member] Member ifrs-full:ForeignCountriesMember
1516 United States of America (USA) [member] Member country:US
1517 Americas other than USA [member] Member mtls:AmericaOtherThanUsaMember
1518 Europe (without Belgium) [member] Member mtls:EuropeWithoutBelgiumMember
1519 Europe and Africa [member] Member mtls:EuropeAndAfricaMember
1520 Asia and Pacific [member] Member mtls:AsiaMember
1521 All countries [member] Member country:AllCountriesDomain
1522 Disclosure of geographical areas [line items] LineItems ifrs-full:DisclosureOfGeographicalAreasLineItems
1523 Non-current assets other than financial instruments, deferred tax assets, post-employment benefit assets, and rights arising under insurance contracts Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssetsOtherThanFinancialInstrumentsDeferredTaxAssetsPostemploymentBenefitAssetsAndRightsArisingUnderInsuranceContracts
1524 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
1525 4072 - Disclosure - Revenue by category (Detail) Network

*

*

http://www.materialise.com/20171231/role/RevenueByCategoryDetail
1526 Disclosure of revenue by category [table] Table

*

*

mtls:DisclosureOfRevenueByCategoryTable
1527 Categories [axis] Axis mtls:CategoriesAxis
1528 Categories [member] Member mtls:CategoriesMember
1529 All categories [member] Member mtls:AllCategoriesMember
1530 Software (non-medical) [member] Member mtls:SoftwareNonMedicalMember
1531 Software (medical) [member] Member mtls:SoftwareMedicalMember
1532 Medical devices and services [member] Member mtls:MedicalDevicesAndServicesMember
1533 Prototyping [member] Member mtls:PrototypingMember
1534 End parts production [member] Member mtls:EndPartsProductionMember
1535 Other category [member] Member mtls:OtherCategoryMember
1536 Disclosure of revenue by category [line items] LineItems mtls:DisclosureOfRevenueByCategoryLineItems
1537 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
1538 4073 - Disclosure - Cost of sales (Detail) Network

*

*

http://www.materialise.com/20171231/role/CostOfSales
1539 Cost of sales [table] Table

*

*

mtls:CostOfSalesTable
1540 Cost of sales [axis] Axis mtls:CostOfSalesAxis
1541 Total cost of sales [member] Member mtls:TotalCostOfSalesMember
1542 Cost of sales [line items] LineItems mtls:CostOfSalesLineItems
1543 Purchase of goods and services Concept (Monetary) For Period Debit mtls:PurchaseOfGoodsAndServicesExpense
1544 Amortization and depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
1545 Payroll expenses Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
1546 Other Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
1547 Total Concept (Monetary) For Period Debit ifrs-full:CostOfSales
1548 4074 - Disclosure - Research and development expenses (Detail) Network

*

*

http://www.materialise.com/20171231/role/ResearchAndDevelopmentExpenses
1549 Research and development expenses [table] Table

*

*

mtls:ResearchAndDevelopmentExpensesTable
1550 Research and development expenses [axis] Axis mtls:ResearchAndDevelopmentExpensesAxis
1551 Research and development expenses [member] Member mtls:ResearchAndDevelopmentExpenseMember
1552 Research and development expenses [line items] LineItems mtls:ResearchAndDevelopmentExpensesLineItems
1553 Purchase of goods and services Concept (Monetary) For Period Debit mtls:PurchaseOfGoodsAndServicesExpense
1554 Amortization and depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
1555 Payroll expenses Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
1556 Other Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
1557 Total Concept (Monetary) For Period Debit ifrs-full:ResearchAndDevelopmentExpense
1558 4075 - Disclosure - Sales and marketing expenses (Detail) Network

*

*

http://www.materialise.com/20171231/role/SalesAndMarketingExpenses
1559 Sales and marketing expenses [table] Table

*

*

mtls:SalesAndMarketingExpensesTable
1560 Sales and marketing expenses [axis] Axis mtls:SalesAndMarketingExpensesAxis
1561 Sales and marketing expenses [member] Member mtls:SalesAndMarketingExpensesMember
1562 Sales and marketing expenses [line items] LineItems mtls:SalesAndMarketingLineItems
1563 Purchase of goods and services Concept (Monetary) For Period Debit mtls:PurchaseOfGoodsAndServicesExpense
1564 Amortization and depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
1565 Payroll expenses Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
1566 Other Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
1567 Total Concept (Monetary) For Period Debit ifrs-full:SalesAndMarketingExpense
1568 4076 - Disclosure - General and administrative expenses (Detail) Network

*

*

http://www.materialise.com/20171231/role/GeneralAndAdministrativeExpenses
1569 General and administrative expenses [table] Table

*

*

mtls:GeneralAndAdministrativeExpensesTable
1570 General and administrative expenses [axis] Axis mtls:GeneralAndAdministrativeExpensesAxis
1571 General and administrative expenses [member] Member mtls:GeneralAndAdministrativeExpensesMember
1572 General and administrative expenses [line items] LineItems mtls:GeneralAndAdministrativeExpensesLineItems
1573 Purchase of goods and services Concept (Monetary) For Period Debit mtls:PurchaseOfGoodsAndServicesExpense
1574 Amortization and depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
1575 Payroll expenses Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
1576 Other Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
1577 Total Concept (Monetary) For Period Debit ifrs-full:AdministrativeExpense
1578 4077 - Disclosure - Net other operating income (expense) (Detail) Network

*

*

http://www.materialise.com/20171231/role/NetOtherOperatingIncomeExpense
1579 Implied Table Table

*

*

implied:Table
1580 Analysis of income and expense [abstract] Abstract ifrs-full:AnalysisOfIncomeAndExpenseAbstract
1581 Government grants Concept (Monetary) For Period Credit ifrs-full:RevenueFromGovernmentGrants
1582 Capitalized expenses (asset construction) Concept (Monetary) For Period Credit mtls:CapitalizedExpenses
1583 Net foreign currency exchange gains / (losses) Concept (Monetary) For Period Credit mtls:NetForeignCurrencyExchangeGains
1584 Tax Credits Concept (Monetary) As Of mtls:TaxCredits
1585 Other Concept (Monetary) For Period Credit ifrs-full:MiscellaneousOtherOperatingIncome
1586 Total Concept (Monetary) For Period Credit ifrs-full:OtherGainsLosses
1587 4078 - Disclosure - Payroll expenses (Detail) Network

*

*

http://www.materialise.com/20171231/role/PayrollExpenses
1588 Payroll expenses [table] Table

*

*

mtls:PayrollExpensesTable
1589 Payroll expenses [axis] Axis mtls:PayrollExpensesAxis
1590 Payroll expenses [domain member] Member mtls:PayrollExpensesMember
1591 Payroll expenses [line items] LineItems mtls:PayrollExpensesLineItems
1592 Short-term employee benefits Concept (Monetary) For Period Debit ifrs-full:ShorttermEmployeeBenefitsExpense
1593 Social security expenses Concept (Monetary) For Period Debit ifrs-full:SocialSecurityContributions
1594 Expenses defined contribution plans Concept (Monetary) For Period Debit ifrs-full:PostemploymentBenefitExpenseDefinedContributionPlans
1595 Other employee expenses Concept (Monetary) For Period Debit ifrs-full:OtherEmployeeExpense
1596 Total Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
1597 Total registered employees at the end of the period Concept (Decimal) As Of ifrs-full:NumberOfEmployees
1598 4079 - Disclosure - Financial expense (Detail) Network

*

*

http://www.materialise.com/20171231/role/FinancialExpense
1599 Financial expense [table] Table

*

*

mtls:FinancialExpenseTable
1600 Legal entity [axis] Axis dei:LegalEntityAxis
1601 Consolidated entity [member] Member mtls:ConsolidatedEntityMember
1602 Analysis of income and expense [abstract] Abstract ifrs-full:AnalysisOfIncomeAndExpenseAbstract
1603 Financial expense [line items] Abstract mtls:FinancialExpenseAbstract
1604 Interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
1605 Foreign exchange loss Concept (Monetary) For Period Debit ifrs-full:NetForeignExchangeLoss
1606 Other finance income (cost) Concept (Monetary) For Period Credit ifrs-full:OtherFinanceIncomeCost
1607 Financial expenses Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
1608 4079 - Disclosure - Financial expense (Detail) Network

*

*

http://www.materialise.com/20171231/role/FinancialExpense
1609 Implied Table Table

*

*

implied:Table
1610 Analysis of income and expense [abstract] Abstract ifrs-full:AnalysisOfIncomeAndExpenseAbstract
1611 Financial expense [line items] Abstract mtls:FinancialExpenseAbstract
1612 Interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
1613 Foreign currency losses Concept (Monetary) For Period Debit ifrs-full:NetForeignExchangeLoss
1614 Other financial expenses Concept (Monetary) For Period Credit ifrs-full:OtherFinanceIncomeCost
1615 Total Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
1616 4080 - Disclosure - Financial income (Detail) Network

*

*

http://www.materialise.com/20171231/role/FinancialIncome
1617 Financial income [table] Table

*

*

mtls:FinancialIncomeTable
1618 Legal entity [axis] Axis dei:LegalEntityAxis
1619 Consolidated entity [member] Member mtls:ConsolidatedEntityMember
1620 Analysis of income and expense [abstract] Abstract ifrs-full:AnalysisOfIncomeAndExpenseAbstract
1621 Financial income [line items] Abstract mtls:FinancialIncomeLineItemsAbstract
1622 Foreign exchange gains Concept (Monetary) For Period Credit ifrs-full:NetForeignExchangeGain
1623 Amortization discount interest free loans Concept (Monetary) For Period Credit mtls:AmortizationDiscountInterestFreeLoans
1624 Other finance income Concept (Monetary) For Period Credit ifrs-full:OtherFinanceIncome
1625 Financial income Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
1626 4080 - Disclosure - Financial income (Detail) Network

*

*

http://www.materialise.com/20171231/role/FinancialIncome
1627 Implied Table Table

*

*

implied:Table
1628 Analysis of income and expense [abstract] Abstract ifrs-full:AnalysisOfIncomeAndExpenseAbstract
1629 Financial income [line items] Abstract mtls:FinancialIncomeLineItemsAbstract
1630 Foreign currency exchange gains Concept (Monetary) For Period Credit ifrs-full:NetForeignExchangeGain
1631 Amortization discount interest free loans Concept (Monetary) For Period Credit mtls:AmortizationDiscountInterestFreeLoans
1632 Other finance income Concept (Monetary) For Period Credit ifrs-full:OtherFinanceIncome
1633 Total Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
1634 4081 - Disclosure - Current income taxes (Detail) Network

*

*

http://www.materialise.com/20171231/role/CurrentIncomeTaxes
1635 Current income taxes [table] Table

*

*

mtls:CurrentIncomeTaxesTable
1636 Legal entity [axis] Axis dei:LegalEntityAxis
1637 Consolidated entity [member] Member mtls:ConsolidatedEntityMember
1638 Major components of tax expense (income) [abstract] Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
1639 Current income taxes [abstract] Abstract mtls:CurrentIncomeTaxesAbstract
1640 Current tax expense (income) Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
1641 Adjustments for current tax of prior periods Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod
1642 Deferred tax expense (income) relating to origination and reversal of temporary differences Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences
1643 Total tax expense (income) Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1644 Belgian Patent Income Deduction % Concept (Percent) As Of mtls:PercentageBelgianPatentIncomeDeduction
1645 4081 - Disclosure - Current income taxes (Detail) Network

*

*

http://www.materialise.com/20171231/role/CurrentIncomeTaxes
1646 Implied Table Table

*

*

implied:Table
1647 Major components of tax expense (income) [abstract] Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
1648 Current income taxes [abstract] Abstract mtls:CurrentIncomeTaxesAbstract
1649 Estimated tax liability for the period Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
1650 Tax adjustments to the previous period Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod
1651 Deferred income taxes Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences
1652 Total tax income (loss) for the period Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1653 Belgian Patent Income Deduction % Concept (Percent) As Of mtls:PercentageBelgianPatentIncomeDeduction
1654 4082 - Disclosure - Current income taxes Narrative (Detail) Network

*

*

http://www.materialise.com/20171231/role/CurrentIncomeTaxesNarrativeDetail
1655 Current income taxes Narrative [table] Table

*

*

mtls:CurrentIncomeTaxesNarrativeTable
1656 Legal entity [axis] Axis dei:LegalEntityAxis
1657 Consolidated entity [member] Member mtls:ConsolidatedEntityMember
1658 Major components of tax expense (income) [abstract] Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
1659 Current income taxes Narrative [line items] Abstract mtls:CurrentIncomeTaxesNarrativeLineItemsAbstract
1660 Unused tax loss carry-forward, tax credits and other (MAT NV) Concept (Monetary) As Of mtls:UnusedTaxLossCarryForwardTaxCreditsAndOtherMaterialiseNv
1661 Unused notional interest deduction - expiration date 2018 Concept (Monetary) As Of mtls:UnusedNotionalInterestDeduction
1662 Tax losses, notional interest deduction and other tax benefits Concept (Monetary) As Of Credit mtls:DeferredTaxAssetsOnTaxLossesNotionalInterestDeductionAndOtherTaxBenefits
1663 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
1664 Unused tax loss carry forward tax credits and other Concept (Monetary) As Of Debit mtls:UnusedTaxLossCarryForwardTaxCreditsandOther
1665 Innovation Income Deduction Concept (Percent) For Period mtls:InnovationIncomeDeduction
1666 Deferred tax assets recognized Concept (Monetary) As Of Debit mtls:DeferredTaxAssetsRecognisedForTaxLossesAndCredits
1667 4082 - Disclosure - Current income taxes Narrative (Detail) Network

*

*

http://www.materialise.com/20171231/role/CurrentIncomeTaxesNarrativeDetail
1668 Implied Table Table

*

*

implied:Table
1669 Major components of tax expense (income) [abstract] Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
1670 Current income taxes Narrative [line items] Abstract mtls:CurrentIncomeTaxesNarrativeLineItemsAbstract
1671 Unused tax loss carry-forward, tax credits and other (MAT NV) Concept (Monetary) As Of mtls:UnusedTaxLossCarryForwardTaxCreditsAndOtherMaterialiseNv
1672 Unused notional interest deduction - expiration date 2018 Concept (Monetary) As Of mtls:UnusedNotionalInterestDeduction
1673 Tax losses, notional interest deduction and other tax benefits Concept (Monetary) As Of Credit mtls:DeferredTaxAssetsOnTaxLossesNotionalInterestDeductionAndOtherTaxBenefits
1674 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
1675 Unused tax loss carry forward tax credits and other Concept (Monetary) As Of Debit mtls:UnusedTaxLossCarryForwardTaxCreditsandOther
1676 Innovation Income Deduction Concept (Percent) For Period mtls:InnovationIncomeDeduction
1677 Deferred tax assets recognized Concept (Monetary) As Of Debit mtls:DeferredTaxAssetsRecognisedForTaxLossesAndCredits
1678 4083 - Disclosure - Deferred tax (Detail) Network

*

*

http://www.materialise.com/20171231/role/DeferredTax
1679 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
1680 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
1681 Temporary differences [member] Member ifrs-full:TemporaryDifferenceMember
1682 Increase (decrease) in deferred tax assets liabilities [member] Member mtls:IncreaseDecreaseinDeferredTaxAssetsLiabilitiesMember
1683 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1684 Tax losses, notional interest deduction and other tax benefits Concept (Monetary) As Of Credit mtls:DeferredTaxAssetsOnTaxLossesNotionalInterestDeductionAndOtherTaxBenefits
1685 Amortization development assets and other intangible assets Concept (Monetary) As Of Debit mtls:DeferredTaxAssetsOnAmortizationDevelopmentAssetsAndOtherIntangibleAssets
1686 Deferred revenue Concept (Monetary) As Of Debit mtls:DeferredTaxAssetsOnDeferredRevenue
1687 Depreciation property, plant and equipment Concept (Monetary) As Of Debit mtls:DeferredTaxAssetsOnDepreciationPropertyPlantAndEquipment
1688 Borrowing cost Concept (Monetary) As Of Debit mtls:DeferredTaxAssetsOnBorrowingCost
1689 Financial leasings Concept (Monetary) As Of Debit mtls:DeferredTaxAssetsOnFinancialLeasings
1690 Inventory Concept (Monetary) As Of Debit mtls:DeferredTaxAssetsOnInventory
1691 Other non-current assets Concept (Monetary) As Of Debit mtls:DeferredTaxAssetsOnAOtherNonCurrentAssets
1692 Total deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
1693 Property, plant and equipment Concept (Monetary) As Of Credit mtls:DeferredTaxLiabilitiesOnPropertyPlantAndEquipment
1694 Intangible assets Concept (Monetary) As Of Credit mtls:DeferredTaxLiabilitiesOnIntangibleAssets
1695 Tax losses, notional interest deduction and other tax benefits Concept (Monetary) As Of Credit mtls:DeferredTaxLiabilitiesOnTaxLossesNotionalInterestDeductionAndOtherTaxBenefits
1696 Deferred tax liabilities on other items Concept (Monetary) As Of Credit mtls:DeferredTaxLiabilitiesOnOtherItems
1697 Total deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
1698 Total deferred tax income (loss) Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences
1699 Unused tax loss carry-forward, tax credits and other Concept (Monetary) As Of mtls:UnusedTaxLossCarryForwardTaskCreditsAndOtherGroup
1700 4084 - Disclosure - Relationship tax Expense and accounting profit (Detail) Network

*

*

http://www.materialise.com/20171231/role/RelationshipTaxExpenseAndAccountingProfit
1701 Relationship tax expense and accounting profit [table] Table

*

*

mtls:RelationshipTaxExpenseAndAcountringProfitTable
1702 Legal entity [axis] Axis dei:LegalEntityAxis
1703 Consolidated entity [member] Member mtls:ConsolidatedEntityMember
1704 Reconciliation of accounting profit multiplied by applicable tax rates [abstract] Abstract ifrs-full:ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract
1705 Relationship tax expense and accounting profit [line items] Abstract mtls:RelationshipTaxExpenseAndAccountingProfitLineItemsAbstract
1706 Accounting profit Concept (Monetary) For Period Credit ifrs-full:AccountingProfit
1707 Tax expense (income) at applicable tax rate Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
1708 Tax effect of foreign tax rates Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfForeignTaxRates
1709 Tax adjustments to the previous period Concept (Monetary) For Period Debit mtls:TaxEffectOfAdjustmentsForCurrentTaxOfPriorPeriods
1710 Tax effect of expense not deductible in determining taxable profit (tax loss) Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss
1711 Capitalized initial public offering transaction costs Concept (Monetary) For Period mtls:TaxEffectOfCapitalizedInitialPublicOfferingTransactionCosts
1712 Research and development tax credits and patent income deduction Concept (Monetary) For Period mtls:TaxEffectOfResearchAndDevelopmentTaxCreditsAndPatentIncomeDeduction
1713 Notional interest deduction Belgium Concept (Monetary) As Of mtls:TaxEffectOfNotionalInterestDeduction
1714 Non recognition of deferred tax asset Concept (Monetary) For Period mtls:TaxEffectOfNonRecognitionOfDeferredTaxAssets
1715 Recognition of deferred tax assets on previous years tax losses Concept (Monetary) For Period mtls:TaxEffectOfRecognitionOfDeferredTaxAssetsOnPreviousYearsTaxLosses
1716 Tax effect of revenues exempt from taxation Concept (Monetary) For Period Debit mtls:TaxEffectOfRevenuesExemptFromTaxation
1717 Tax effect of tax losses Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfTaxLosses
1718 Taxes on other basis Concept (Monetary) For Period mtls:TaxEffectOfTaxesOnOtherBasis
1719 Other tax effects for reconciliation between accounting profit and tax expense (income) Concept (Monetary) For Period Debit ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
1720 Total tax expense (income) Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1721 4084 - Disclosure - Relationship tax Expense and accounting profit (Detail) Network

*

*

http://www.materialise.com/20171231/role/RelationshipTaxExpenseAndAccountingProfit
1722 Implied Table Table

*

*

implied:Table
1723 Reconciliation of accounting profit multiplied by applicable tax rates [abstract] Abstract ifrs-full:ReconciliationOfAccountingProfitMultipliedByApplicableTaxRatesAbstract
1724 Relationship tax expense and accounting profit [line items] Abstract mtls:RelationshipTaxExpenseAndAccountingProfitLineItemsAbstract
1725 Profit (loss) before tax Concept (Monetary) For Period Credit ifrs-full:AccountingProfit
1726 Income tax at statutory rate of 33,99% Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
1727 Effect of different local tax rate Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfForeignTaxRates
1728 Tax adjustments to the previous period Concept (Monetary) For Period Debit mtls:TaxEffectOfAdjustmentsForCurrentTaxOfPriorPeriods
1729 Non-deductible expenses Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss
1730 Capitalized initial public offering transaction costs Concept (Monetary) For Period mtls:TaxEffectOfCapitalizedInitialPublicOfferingTransactionCosts
1731 Research and development tax credits and patent income deduction Concept (Monetary) For Period mtls:TaxEffectOfResearchAndDevelopmentTaxCreditsAndPatentIncomeDeduction
1732 Notional interest deduction Belgium Concept (Monetary) As Of mtls:TaxEffectOfNotionalInterestDeduction
1733 Non recognition of deferred tax asset Concept (Monetary) For Period mtls:TaxEffectOfNonRecognitionOfDeferredTaxAssets
1734 Recognition of deferred tax assets on previous years tax losses Concept (Monetary) For Period mtls:TaxEffectOfRecognitionOfDeferredTaxAssetsOnPreviousYearsTaxLosses
1735 Tax effect of revenues exempt from taxation Concept (Monetary) For Period Debit mtls:TaxEffectOfRevenuesExemptFromTaxation
1736 Use of previous years tax losses and tax credits for which no deferred tax assets was recognized Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfTaxLosses
1737 Taxes on other basis Concept (Monetary) For Period mtls:TaxEffectOfTaxesOnOtherBasis
1738 Other Concept (Monetary) For Period Debit ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
1739 Income tax expense as reported in the consolidated income statement Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1740 4085 - Disclosure - Earnings per share attributable to ordinary owners of the parent (Detail) Network

*

*

http://www.materialise.com/20171231/role/EarningsPerShareAttributableToOrdinaryOwnersOfTheParent
1741 Implied Table Table

*

*

implied:Table
1742 Earnings per share attributable to ordinary owners of the parent [abstract] Abstract ifrs-full:BasicAndDilutedEarningsPerShareAbstract
1743 Basic Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
1744 Diluted Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
1745 4086 - Disclosure - Weighted average number of ordinary shares for basic earnings per share (Detail) Network

*

*

http://www.materialise.com/20171231/role/WeightedAverageNumberOfOrdinarySharesForBasicEarningsPerShare
1746 Implied Table Table

*

*

implied:Table
1747 Weighted average ordinary shares and adjusted weighted average ordinary shares [abstract] Abstract ifrs-full:WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract
1748 Weighted average number of ordinary shares for basic earnings per share Concept (Shares) For Period ifrs-full:WeightedAverageShares
1749 Effect of dilution: Abstract mtls:DilutiveEffectOfShareOptionsOrConvertibleInstrumentsOnNumberOfOrdinarySharesAbstract
1750 Share options Concept (Shares) For Period ifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares
1751 Convertible loan Concept (Shares) For Period ifrs-full:DilutiveEffectOfConvertibleInstrumentsOnNumberOfOrdinaryShares
1752 Weighted average number of ordinary shares adjusted for effect of dilution Concept (Shares) For Period ifrs-full:AdjustedWeightedAverageShares
1753 4087 - Disclosure - Net profit attributable to ordinary equity holders of the parent for basic earnings (Detail) Network

*

*

http://www.materialise.com/20171231/role/NetProfitAttributableToOrdinaryEquityHoldersOfTheParentForBasicEarnings
1754 Implied Table Table

*

*

implied:Table
1755 Profit (loss), attributable to ordinary equity holders of parent entity [abstract] Abstract ifrs-full:ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityAbstract
1756 Net profit attributable to ordinary equity holders of the parent for basic earnings Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity
1757 Interest on convertible bonds Concept (Monetary) As Of mtls:EffectOfDilutionInterestOnConvertibleBonds
1758 Net profit attributable to ordinary equity holders of the parent adjusted for the effect of dilution Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityIncludingDilutiveEffects
1759 4088 - Disclosure - Operational lease commitments (Detail) Network

*

*

http://www.materialise.com/20171231/role/OperationalLeaseCommitments
1760 Disclosure of finance lease and operating lease by lessee [table] Table

*

*

ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable
1761 Maturity [axis] Axis ifrs-full:MaturityAxis
1762 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1763 Not later than one year [member] Member ifrs-full:NotLaterThanOneYearMember
1764 Between two and three years [member] Member mtls:BetweenTwoAndThreeYearsMember
1765 Between four and five years [member] Member mtls:BetweenFourAndFiveYearsMember
1766 Later than five years [member] Member ifrs-full:LaterThanFiveYearsMember
1767 Disclosure of finance lease and operating lease by lessee [line items] LineItems ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems
1768 Minimum lease payments payable under non-cancellable operating lease Concept (Monetary) As Of Credit ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease
1769 4089 - Disclosure - Operational lease commitments Narrative (Detail) Network

*

*

http://www.materialise.com/20171231/role/OperationalLeaseCommitmentsParenthetical
1770 Implied Table Table

*

*

implied:Table
1771 Lease and sublease payments recognised as expense [abstract] Abstract ifrs-full:LeaseAndSubleasePaymentsRecognisedAsExpenseAbstract
1772 Total lease payments recognized in income statements Concept (Monetary) For Period Debit ifrs-full:MinimumOperatingLeasePayments
1773 Refinanced operating car lease commitments Concept (Monetary) As Of Credit mtls:refinancedLeaseCommitments
1774 4090 - Disclosure - Capital lease commitments (Detail) Network

*

*

http://www.materialise.com/20171231/role/CapitalLeaseCommitments
1775 Disclosure of finance lease and operating lease by lessee [table] Table

*

*

ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable
1776 Maturity [axis] Axis ifrs-full:MaturityAxis
1777 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1778 Not later than one year [member] Member ifrs-full:NotLaterThanOneYearMember
1779 Between two and three years [member] Member mtls:BetweenTwoAndThreeYearsMember
1780 Between four and five years [member] Member mtls:BetweenFourAndFiveYearsMember
1781 Later than five years [member] Member ifrs-full:LaterThanFiveYearsMember
1782 Less finance charges [member] Member mtls:futureFinanceChargeOnFinanceLeaseMember
1783 Present value of minimum lease payments [member] Member mtls:presentValueOfMinimumLeasePaymentsMember
1784 Disclosure of finance lease and operating lease by lessee [line items] LineItems ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems
1785 Minimum finance lease payments payable Concept (Monetary) As Of Credit ifrs-full:MinimumFinanceLeasePaymentsPayable
1786 Minimum finance lease payments payable, at present value Concept (Monetary) As Of Credit ifrs-full:MinimumFinanceLeasePaymentsPayableAtPresentValue
1787 Future finance charge on finance lease Concept (Monetary) As Of Credit ifrs-full:FutureFinanceChargeOnFinanceLease
1788 4091 - Disclosure - Foreign Currency Sensitivity (Detail) Network

*

*

http://www.materialise.com/20171231/role/SensitivityAnalysis
1789 Sensitivity analysis [table] Table

*

*

mtls:sensivityAnalysisTable
1790 Legal entity [axis] Axis dei:LegalEntityAxis
1791 Consolidated entity [member] Member mtls:ConsolidatedEntityMember
1792 Sensitivity analysis [line items] LineItems mtls:copyOfCreditRiskLineItems
1793 EUR value for USD rate Concept (Monetary) As Of mtls:eurValueForUsdRate
1794 Percantage increase USD rate Concept (Percent) As Of mtls:PercentageIncreaseUsdRate
1795 Decrease in net result with change in USD rate Concept (Monetary) For Period Debit mtls:decreaseInNetResultWithChangeInUsdRate
1796 Increase in net result with change in USD rate Concept (Monetary) For Period Credit mtls:increaseInNetResultWithChangeInUsdRate
1797 USD impact on cash and term accounts held in USD Concept (Monetary) As Of Credit mtls:UsdImpactOnCashAndTermAccountsHeldInUsd
1798 Rate for amount in EUR Concept (Monetary) As Of Debit mtls:RateForAmountEur
1799 USD rate increase/decrease by Concept (Percent) As Of mtls:UsdRateIncreaseBy
1800 Net result would be higher Concept (Monetary) For Period mtls:NetResultWouldBeHigher
1801 USD rate decrease by Concept (Percent) As Of mtls:UsdRateDecreaseBy
1802 Net result would be lower Concept (Monetary) For Period mtls:NetResultWouldBeLower
1803 4092 - Disclosure - Liquidity risk (Detail) Network

*

*

http://www.materialise.com/20171231/role/LiquidityRisk
1804 Disclosure of maturity analysis for non-derivative financial liabilities [table] Table

*

*

ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesTable
1805 Maturity [axis] Axis ifrs-full:MaturityAxis
1806 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1807 Not later than one year [member] Member ifrs-full:NotLaterThanOneYearMember
1808 Later than one year and not later than three years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanThreeYearsMember
1809 Later than three years and not later than five years [member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFiveYearsMember
1810 Later than five years [member] Member ifrs-full:LaterThanFiveYearsMember
1811 Disclosure of maturity analysis for non-derivative financial liabilities [line items] LineItems ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems
1812 Loan and borrowings Concept (Monetary) As Of Credit ifrs-full:BankBorrowingsUndiscountedCashFlows
1813 Trade payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayablesUndiscountedCashFlows
1814 Other current liabilities Concept (Monetary) As Of Credit mtls:OtherCurrentLiabilitiesUndiscountedCashFlows
1815 Total Concept (Monetary) As Of Credit ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows
1816 Undrawn lines of credit Concept (Monetary) As Of Credit mtls:UndrawnLinesOfCredit
1817 USD impact on cash and term accounts held in USD Concept (Monetary) As Of Credit mtls:UsdImpactOnCashAndTermAccountsHeldInUsd
1818 4093 - Disclosure - Liquidity risk Narrative (Details) Network

*

*

http://www.materialise.com/20171231/role/LiquidityRiskNarrativeDetails
1819 Liquidity risk Narrative [table] Table

*

*

mtls:LiquidityRiskNarrativeTable
1820 Legal entity [axis] Axis dei:LegalEntityAxis
1821 Consolidated entity [member] Member mtls:ConsolidatedEntityMember
1822 Disclosure of maturity analysis for non-derivative financial liabilities [line items] LineItems ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems
1823 Undrawn lines of credit Concept (Monetary) As Of Credit mtls:UndrawnLinesOfCredit
1824 EIB finance contract credit line first tranch Concept (Monetary) For Period Credit mtls:EibFinanceContractCreditLineFirstTranch
1825 EIB finance duration from Concept (Decimal) As Of mtls:EibFinanceDurationFrom
1826 EIB finance duration to Concept (Decimal) As Of mtls:EibFinanceDurationTo
1827 EIB finance reimbursement period Concept (Decimal) As Of mtls:EibFinanceReimbursementPeriod
1828 EIB finance interest margin Concept (Percent) As Of mtls:EibFinanceInterestMargin
1829 EIB finance contract credit line Total Concept (Monetary) As Of Credit mtls:EibFinanceContractCreditLineTotal
1830 4094 - Disclosure - Credit risk (Detail) Network

*

*

http://www.materialise.com/20171231/role/CreditRisk
1831 Credit risk [table] Table

*

*

mtls:CreditRiskTable
1832 Due [axis] Axis mtls:tradeReceivablesPartDueAxis
1833 Total [member] Member mtls:tradeReceivablesPartTotalDueMember
1834 Non-due [member] Member mtls:tradeReceivablesPartNonDueMember
1835 Up to 30 days [member] Member mtls:tradeReceivablesPartUpToThirtyDaysDueMember
1836 31-60 days [member] Member mtls:tradeReceivablesPartBetweenThirtyoneAndSixtyDaysDueMember
1837 61-90 days [member] Member mtls:tradeReceivablesPartBetweenSixtyoneAndNinetyDaysDueMember
1838 91-180 days [member] Member mtls:tradeReceivablesPartBetweenNinetyoneAndHundredeightyDaysDueMember
1839 More than 180 days [member] Member mtls:tradeReceivablesPartMoreThanHundredeightyoneDaysDueMember
1840 Credit risk [line items] LineItems mtls:CreditRiskLineItems
1841 At end of period Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
1842 4095 - Disclosure - Related party transactions (Detail) Network

*

*

http://www.materialise.com/20171231/role/RelatedPartyTransactions
1843 Implied Table Table

*

*

implied:Table
1844 Related party transactions [abstract] Abstract ifrs-full:OutstandingBalancesForRelatedPartyTransactionsAbstract
1845 Short-term employee benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
1846 Post-employment benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationPostemploymentBenefits
1847 Termination benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationTerminationBenefits
1848 Total Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
1849 Warrants granted Concept (Decimal) As Of mtls:numberOfWarrantsGrantedKeyManagementPersonnel
1850 Warrants outstanding Concept (Decimal) As Of mtls:numberOfWarrantsOutstandingKeyManagementPersonnel
1851 4096 - Disclosure - Related party transactions Narrative (Detail) Network

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http://www.materialise.com/20171231/role/RelatedPartyTransactionsNarrativeDetail
1852 Details related party transactions Narrative [table] Table

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mtls:DetailRelatedPartyTransactionsNarrativeTable
1853 Legal entity [axis] Axis dei:LegalEntityAxis
1854 Consolidated entity [member] Member mtls:ConsolidatedEntityMember
1855 Details related party transactions Narrative [line items] LineItems mtls:DetailsRelatedPartyTransactionsNarrativeLineItems
1856 Share based payment expense related to key management Concept (Monetary) For Period mtls:ShareBasedPaymentExpenseRelatedToKeyManagement
1857 Convertible number of bonds Concept (Decimal) As Of mtls:ConvertibleLoanNumberOfBonds
1858 Convertible loan carrying amount Concept (Monetary) As Of Credit mtls:ConvertibleLoanCarryingAmount
1859 Number of founder shares Concept (Decimal) As Of mtls:NumberOfFounderShares
1860 Dilution percent found shares Concept (Percent) As Of mtls:DilutionPercentFoundShares
1861 4097 - Disclosure - Transactions (Detail) Network

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http://www.materialise.com/20171231/role/Transactions
1862 Disclosure of transactions between related parties [table] Table

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ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
1863 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1864 Non-executive directors of the group [member] Member mtls:nonexecutiveDirectorsOfTheGroupMember
1865 Shareholders of the group [member] Member mtls:shareholdersOfTheGroupMember
1866 Joint ventures where entity is venturer [member] Member ifrs-full:JointVenturesWhereEntityIsVenturerMember
1867 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1868 Sale of goods to Concept (Monetary) For Period Credit ifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions
1869 Purchases from Concept (Monetary) For Period Debit ifrs-full:PurchasesOfGoodsRelatedPartyTransactions
1870 Interest expense Concept (Monetary) For Period mtls:interestExpenseRelatedPartyTransactions
1871 Receivables Concept (Monetary) As Of Debit ifrs-full:AmountsReceivableRelatedPartyTransactions
1872 Liabilities Concept (Monetary) As Of Credit ifrs-full:AmountsPayableRelatedPartyTransactions
1873 4098 - Disclosure - Transactions Narrative (Detail) Network

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http://www.materialise.com/20171231/role/TransactionsParenthetical
1874 Implied Table Table

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implied:Table
1875 Disclosure of transactions between related parties [abstract] Abstract ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesAbstract
1876 Rent paid to Ailanthus (related party) Concept (Monetary) For Period mtls:RptTotalRentPaidToAlliantus
1877 Non-current receivable on joint venture Concept (Monetary) As Of Debit mtls:NonCurrentReceivableOnJointVenture
1878 4103 - Disclosure - Mortgages and pledges (Detail) Network

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http://www.materialise.com/20171231/role/MortgagesAndPledges
1879 Implied Table Table

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implied:Table
1880 Mortages and pledges [abstract] Abstract mtls:mortgagesAndPledges
1881 Carrying value property, plant and equipment related to mortgages and loans Concept (Monetary) As Of Debit mtls:TotalPropertyPlantAndEquipmentPledgedAsSecurity
1882 Total outstanding mortgages and pledges Concept (Monetary) As Of Credit mtls:totalOutstandingMortgagesAndPledges
1883 Pledges on business goodwill Concept (Monetary) As Of Credit mtls:pledgesOnBusinessGoodwil
1884 Current and other fixed assets pledges as security Concept (Monetary) As Of Debit mtls:CurrentAndOtherFixedAssetsPledgesAsSecurity
1885 4105 - Disclosure - Other commitments (Detail) Network

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http://www.materialise.com/20171231/role/OtherCommitments
1886 Implied Table Table

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implied:Table
1887 Other commitments [abstract] Abstract mtls:otherCommitmentsAbstract
1888 Contractual capital commitments Concept (Monetary) As Of Credit ifrs-full:ContractualCapitalCommitments
1889 Committed expenditures in property, plant and equipment Concept (Monetary) As Of Credit ifrs-full:ContractualCommitmentsForAcquisitionOfPropertyPlantAndEquipment
1890 Estimated financial effect of contingent liabilities Concept (Monetary) As Of ifrs-full:EstimatedFinancialEffectOfContingentLiabilities

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