HYDROGENICS CORP (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

Line Label Object Class Period Type Balance Report ElementName
1 00090 - Document - Document And Entity Information Network

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 http://www.hydrogenics.com/role/DocumentDocumentAndEntityInformation
2 Implied Table Table

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3 Document And Entity Information [Abstract] Abstract hygs:DocumentAndEntityInformationAbstract
4 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
5 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
6 Document Type Concept (Submission Type) For Period dei:DocumentType
7 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
8 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
9 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
10 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
11 Entity Current Reporting Status Concept (Yes/No) For Period dei:EntityCurrentReportingStatus
12 Amendment Flag Concept (Yes/No) For Period dei:AmendmentFlag
13 Entity Common Stock, Shares Outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
14 00100 - Statement - Consolidated Balance Sheets Network

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 http://www.hydrogenics.com/role/StatementConsolidatedBalanceSheets
15 Implied Table Table

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16 Consolidated Balance Sheets Abstract ifrs-full:StatementOfFinancialPositionAbstract
17 Assets Abstract ifrs-full:AssetsAbstract
18 Current assets Abstract ifrs-full:CurrentAssetsAbstract
19 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
20 Restricted cash Concept (Monetary) As Of Debit ifrs-full:CurrentRestrictedCashAndCashEquivalents
21 Trade and other receivables Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
22 Contract assets Concept (Monetary) As Of Debit ifrs-full:CurrentContractAssets
23 Inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
24 Prepaid expenses Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaidExpenses
25 Total current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
26 Non-current assets Abstract ifrs-full:NoncurrentAssetsAbstract
27 Restricted cash Concept (Monetary) As Of Debit ifrs-full:NoncurrentRestrictedCashAndCashEquivalents
28 Non-current receivables Concept (Monetary) As Of Debit ifrs-full:NoncurrentReceivables
29 Contract assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentContractAssets
30 Investment in joint ventures Concept (Monetary) As Of Debit ifrs-full:InvestmentsInJointVenturesAccountedForUsingEquityMethod
31 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
32 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
33 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
34 Total non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
35 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
36 Liabilities Abstract ifrs-full:LiabilitiesAbstract
37 Current liabilities Abstract ifrs-full:CurrentLiabilitiesAbstract
38 Operating borrowings Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
39 Trade and other payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
40 Contract liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentContractLiabilities
41 Financial liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentFinancialLiabilities
42 Provisions Concept (Monetary) As Of Credit ifrs-full:OtherShorttermProvisions
43 Deferred funding Concept (Monetary) As Of Credit hygs:DeferredFundingClassifiedAsCurent
44 Deferred revenue Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsCurrent
45 Total current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
46 Non-current liabilities Abstract ifrs-full:NoncurrentLiabilitiesAbstract
47 Other liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
48 Contract liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentContractLiabilities
49 Provisions Concept (Monetary) As Of Credit ifrs-full:OtherLongtermProvisions
50 Deferred funding Concept (Monetary) As Of Credit hygs:DeferredFundingClassifedAsNoncurrent
51 Deferred revenue Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsNoncurrent
52 Total non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
53 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
54 Equity Abstract ifrs-full:EquityAbstract
55 Share capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
56 Contributed surplus Concept (Monetary) As Of Credit ifrs-full:AdditionalPaidinCapital
57 Accumulated other comprehensive loss Concept (Monetary) As Of Credit ifrs-full:AccumulatedOtherComprehensiveIncome
58 Deficit Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
59 Total equity Concept (Monetary) As Of Credit ifrs-full:Equity
60 Total equity and liabilities Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
61 00200 - Statement - Consolidated Statements Of Operations And Comprehensive Loss Network

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 http://www.hydrogenics.com/role/StatementConsolidatedStatementsOfOperationsAndComprehensiveLoss
62 Implied Table Table

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63 Consolidated Statements Of Operations And Comprehensive Loss Abstract ifrs-full:IncomeStatementAbstract
64 Revenues Concept (Monetary) For Period Credit ifrs-full:Revenue
65 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
66 Gross profit Concept (Monetary) For Period Credit ifrs-full:GrossProfit
67 Operating expenses Abstract hygs:OperatingExpensesAbstract
68 Selling, general and administrative expenses Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
69 Research and product development expenses Concept (Monetary) For Period Debit ifrs-full:ResearchAndDevelopmentExpense
70 Total operating expenses Concept (Monetary) For Period Debit ifrs-full:OperatingExpenseExcludingCostOfSales
71 Loss from operations Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
72 Loss from joint ventures Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
73 Finance income (loss) Abstract hygs:FinanceIncomeExpensesAbstract
74 Interest expense, net on financial instruments measured at amortized cost Concept (Monetary) For Period Credit ifrs-full:InterestRevenueExpense
75 Foreign currency gains net Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
76 Other finance gains (losses), net Concept (Monetary) For Period Credit ifrs-full:OtherFinanceIncomeCost
77 Finance loss, net Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
78 Loss before income taxes Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
79 Income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
80 Net loss for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
81 Items that will not be reclassified subsequently to net loss: Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract
82 Re-measurement of actuarial liability Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
83 Items that may be reclassified subsequently to net loss Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract
84 Exchange differences on translating foreign operations Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
85 Comprehensive loss for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
86 Net loss per share Abstract ifrs-full:EarningsPerShareAbstract
87 Basic and diluted Concept (Share) For Period ifrs-full:BasicAndDilutedEarningsLossPerShare
88 Weighted average number of common shares outstanding Concept (Shares) For Period ifrs-full:WeightedAverageShares
89 00205 - Statement - Consolidated Statements Of Operations And Comprehensive Loss (Parenthetical) Network

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 http://www.hydrogenics.com/role/StatementConsolidatedStatementsOfOperationsAndComprehensiveLossParenthetical
90 Consolidated Statements Of Operations And Comprehensive Loss [table] Table

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 hygs:ConsolidatedStatementsOfOperationsAndComprehensiveLossTable
91 Liabilities arising from financing activities [axis] Axis ifrs-full:LiabilitiesArisingFromFinancingActivitiesAxis
92 Liabilities arising from financing activities [member] Member ifrs-full:LiabilitiesArisingFromFinancingActivitiesMember
93 Borrowings [member] Member hygs:BorrowingsMember
94 Consolidated Statements Of Operations And Comprehensive Loss [line items] LineItems hygs:ConsolidatedStatementsOfOperationsAndComprehensiveLossLineItems
95 Foreign exchange on borrowings Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
96 00300 - Statement - Consolidated Statements Of Changes In Equity Network

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 http://www.hydrogenics.com/role/StatementConsolidatedStatementsOfChangesInEquity
97 Statement of changes in equity [table] Table

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 ifrs-full:StatementOfChangesInEquityTable
98 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
99 Currently stated [member] Member ifrs-full:RestatedMember
100 Restatement [member] Member hygs:RestatementMember
101 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
102 Equity [member] Member ifrs-full:EquityMember
103 Common Shares [member] Member ifrs-full:OrdinarySharesMember
104 Contributed Surplus [member] Member ifrs-full:AdditionalPaidinCapitalMember
105 Deficit [member] Member ifrs-full:RetainedEarningsMember
106 Accumulated Other Comprehensive Loss [member] Member ifrs-full:AccumulatedOtherComprehensiveIncomeMember
107 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
108 Beginning Balance, Number of shares Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
109 Change in accounting policy Concept (Monetary) For Period Credit hygs:ChangeInAccountingPolicyEffectOnEquity
110 Beginning Balance, Amount Concept (Monetary) As Of Credit ifrs-full:Equity
111 Net loss Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
112 Other comprehensive loss Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
113 Comprehensive loss for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
114 Adjustment for partial shares on share consolidation, Shares Concept (Shares) For Period hygs:AdjustmentForPartialSharesOnShareConsolidation
115 Adjustment for partial shares on share consolidation, Amount Concept (Monetary) For Period Credit hygs:AdjustmentForPartialSharesOnShareConsolidationAmount
116 Issuance of common shares, Shares Concept (Shares) For Period ifrs-full:IncreaseDecreaseInNumberOfSharesOutstanding
117 Issuance of common shares, Amount Concept (Monetary) For Period Credit ifrs-full:IssueOfEquity
118 Warrants exercised, Shares Concept (Shares) For Period hygs:WarrantsExercisedShares
119 Warrants exercised, Amount Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughExerciseOfWarrantsEquity
120 Issuance of common shares on exercise of stock options, Shares Concept (Shares) For Period hygs:IncreaseDecreaseThroughExerciseOfOptionsShares
121 Issuance of common shares on exercise of stock options, Amount Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughExerciseOfOptions
122 Issuance of common shares on vesting of performance share units, Shares Concept (Shares) For Period hygs:IncreaseDecreaseThroughVestingOfPerformanceShareUnitsShares
123 Issuance of common shares on vesting of performance share units, Amount Concept (Monetary) For Period Credit hygs:IncreaseDecreaseThroughVestingOfPerformanceShareUnits
124 Stock-based compensation expense Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
125 Ending Balance, Number of shares Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
126 Ending Balance, Amount Concept (Monetary) As Of Credit ifrs-full:Equity
127 00305 - Statement - Consolidated Statements Of Changes In Equity (Parenthetical) Network

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 http://www.hydrogenics.com/role/StatementConsolidatedStatementsOfChangesInEquityParenthetical
128 Statement of changes in equity [table] Table

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 ifrs-full:StatementOfChangesInEquityTable
129 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
130 Equity [member] Member ifrs-full:EquityMember
131 Accumulated Translation Adjustment [member] Member hygs:IFRSAccumulatedTranslationAdjustmentMember
132 Common Shares [member] Member ifrs-full:OrdinarySharesMember
133 Preferred Shares [member] Member ifrs-full:PreferenceSharesMember
134 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
135 Currency translation adjustments Concept (Monetary) As Of Credit hygs:AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
136 Gain (loss) on remeasurement of actuarial liability Concept (Monetary) As Of Credit hygs:IfrsAccumulatedOtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionAfterTax
137 Par value per share Concept (Share) As Of ifrs-full:ParValuePerShare
138 00400 - Statement - Consolidated Statements Of Cash Flows Network

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 http://www.hydrogenics.com/role/StatementConsolidatedStatementsOfCashFlows
139 Implied Table Table

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140 Statement of cash flows [abstract] Abstract ifrs-full:StatementOfCashFlowsAbstract
141 Operating activities: Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
142 Net loss for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
143 Decrease (increase) in restricted cash Concept (Monetary) For Period Credit hygs:IfrsIncreaseDecreaseInRestrictedCashForOperatingActivities
144 Items not affecting cash Abstract hygs:ItemsNotAffectingCashAbstract
145 Loss (gain) on disposal of property, plant, and equipment Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets
146 Amortization and depreciation Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense
147 Loss (gain) from change in fair value of warrants Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInDerivativeFinancialLiabilities
148 Unrealized foreign exchange (gain) loss Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains
149 Unrealized loss from joint ventures Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates
150 Accreted interest and fair value adjustment Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInOtherOperatingPayables
151 Stock-based compensation Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForSharebasedPayments
152 Stock-based compensation - DSU's Concept (Monetary) For Period Debit hygs:AdjustmentsForShareBasedPaymentsOfDeferredStockUnitsAndCashSettledRestrictedStockUnits
153 Net change in non-cash operating assets and liabilities Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInWorkingCapital
154 Cash used in operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
155 Investing activities Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
156 Investment in joint venture Concept (Monetary) For Period Credit ifrs-full:OtherCashPaymentsToAcquireInterestsInJointVenturesClassifiedAsInvestingActivities
157 Purchase of property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
158 Receipt of government funding Concept (Monetary) For Period Debit ifrs-full:ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities
159 Proceeds from disposals of property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets
160 Purchase of intangible assets Concept (Monetary) For Period Credit ifrs-full:PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities
161 Cash provided by (used in) investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
162 Financing activities Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
163 Proceeds from common shares issued and stock options exercised, net of issuance costs Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
164 Principal repayments of long-term debt Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfNoncurrentBorrowings
165 Exercise of warrants Concept (Monetary) For Period Debit hygs:ProceedsFromExerciseOfWarrants
166 Interest payments Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsFinancingActivities
167 Proceeds of operating borrowings Concept (Monetary) For Period Debit ifrs-full:ProceedsFromCurrentBorrowings
168 Repayment of operating borrowings Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfCurrentBorrowings
169 Repayment of repayable government contributions and long-term debt Concept (Monetary) For Period Credit hygs:RepaymentOfRepayableGovernmentContributionsAndLongTermDebt
170 Repayment of long-term debt - institutional Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities
171 Cash provided by (used in) financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
172 Increase (decrease) in cash and cash equivalents during the year Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges
173 Cash and cash equivalents - Beginning of year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
174 Effect of exchange rate fluctuations on cash and cash equivalents held Concept (Monetary) For Period Debit ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
175 Cash and cash equivalents - End of year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
176 10101 - Disclosure - Description of Business Network

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 http://www.hydrogenics.com/role/DisclosureDescriptionOfBusiness
177 Implied Table Table

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178 Description of Business [abstract] Abstract hygs:DescriptionOfBusinessAbstract
179 Description of Business Concept (Text Block (HTML)) For Period hygs:IfrsNatureOfOperationsTextBlock
180 10201 - Disclosure - Basis of Preparation Network

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 http://www.hydrogenics.com/role/DisclosureBasisOfPreparation
181 Implied Table Table

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182 Basis of Preparation [abstract] Abstract hygs:BasisOfPreparationAbstract
183 Basis of Preparation Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory
184 10301 - Disclosure - Summary of Significant Accounting Policies Network

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185 Implied Table Table

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186 Summary of Significant Accounting Policies [abstract] Abstract hygs:SummaryOfSignificantAccountingPoliciesAbstract
187 Summary of Significant Accounting Policies Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory
188 10401 - Disclosure - Significant Accounting Judgments and Estimation Uncertainties Network

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189 Implied Table Table

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190 Significant Accounting Judgments and Estimation Uncertainties [abstract] Abstract hygs:SignificantAccountingJudgmentsAndEstimationUncertaintiesAbstract
191 Significant Accounting Judgments and Estimation Uncertainties Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAccountingJudgementsAndEstimatesExplanatory
192 10501 - Disclosure - IFRS 9 Financial Instruments & IFRS 15 Revenue from Contracts with Customers - Impact of Adoption Network

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 http://www.hydrogenics.com/role/DisclosureIfrs9FinancialInstrumentsIfrs15RevenueFromContractsWithCustomersImpactOfAdoption
193 Implied Table Table

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194 IFRS 9 Financial Instruments & IFRS 15 Revenue from Contracts with Customers - Impact of Adoption [abstract] Abstract ifrs-full:DisclosureOfInitialApplicationOfStandardsOrInterpretationsAbstract
195 IFRS 9 Financial Instruments & IFRS 15 Revenue from Contracts with Customers - Impact of Adoption Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory
196 10601 - Disclosure - Accounting Standards Issued But Not Yet Applied - IFRS 16 Network

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197 Implied Table Table

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198 Accounting Standards Issued But Not Yet Applied - IFRS 16 [abstract] Abstract hygs:AccountingStandardsIssuedButNotYetAppliedAbstract
199 Accounting Standards Issued But Not Yet Applied - IFRS 16 Concept (Text Block (HTML)) For Period hygs:AccountingStandardsIssuedButNotYetAppliedTextBock
200 10701 - Disclosure - Cash and Cash Equivalents and Restricted Cash Network

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 http://www.hydrogenics.com/role/DisclosureCashAndCashEquivalentsAndRestrictedCash
201 Implied Table Table

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202 Cash and Cash Equivalents and Restricted Cash [abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
203 Cash and Cash Equivalents and Restricted Cash Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRestrictedCashAndCashEquivalentsExplanatory
204 10801 - Disclosure - Trade and Other Receivables Network

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 http://www.hydrogenics.com/role/DisclosureTradeAndOtherReceivables
205 Implied Table Table

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206 Trade and Other Receivables [abstract] Abstract ifrs-full:TradeAndOtherReceivablesAbstract
207 Trade and Other Receivables Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory
208 10901 - Disclosure - Contract Assets And Contract Liabilities Network

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209 Implied Table Table

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210 Disclosure of contract assets and contract liabilities [abstract] Abstract hygs:DisclosureOfContractAssetsAndContractLiabilitiesAbstract
211 Contract Assets and Contract Liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRevenueFromContractsWithCustomersExplanatory
212 11001 - Disclosure - Inventories Network

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 http://www.hydrogenics.com/role/DisclosureInventories
213 Implied Table Table

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214 Inventories [abstract] Abstract ifrs-full:ClassesOfInventoriesAbstract
215 Inventories Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInventoriesExplanatory
216 11101 - Disclosure - Prepaid Expenses Network

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 http://www.hydrogenics.com/role/DisclosurePrepaidExpenses
217 Implied Table Table

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218 Prepaid Expenses [abstract] Abstract ifrs-full:DisclosureOfAssetsRecognisedFromCostsToObtainOrFulfilContractsWithCustomersAbstract
219 Prepaid Expenses Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAssetsRecognisedFromCostsToObtainOrFulfilContractsWithCustomersExplanatory
220 11201 - Disclosure - Investment in Joint Ventures Network

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221 Implied Table Table

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222 Investment in Joint Venture [abstract] Abstract ifrs-full:DisclosureOfJointVenturesAbstract
223 Investment in Joint Ventures Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfJointVenturesExplanatory
224 11301 - Disclosure - Property, Plant and Equipment Network

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 http://www.hydrogenics.com/role/DisclosurePropertyPlantAndEquipment
225 Implied Table Table

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226 Property, Plant and Equipment [abstract] Abstract ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
227 Property, Plant and Equipment Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory
228 11401 - Disclosure - Intangible Assets Network

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229 Implied Table Table

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230 Intangible Assets [abstract] Abstract ifrs-full:DisclosureOfIntangibleAssetsAbstract
231 Intangible Assets Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIntangibleAssetsExplanatory
232 11501 - Disclosure - Goodwill Network

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 http://www.hydrogenics.com/role/DisclosureGoodwill
233 Implied Table Table

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234 Goodwill [abstract] Abstract ifrs-full:ChangesInGoodwillAbstract
235 Goodwill Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGoodwillExplanatory
236 11601 - Disclosure - Trade and Other Payables Network

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 http://www.hydrogenics.com/role/DisclosureTradeAndOtherPayables
237 Implied Table Table

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238 Trade and Other Payables [abstract] Abstract ifrs-full:TradeAndOtherPayablesAbstract
239 Trade and Other Payables Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherPayablesExplanatory
240 11701 - Disclosure - Financial Liabilities Network

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 http://www.hydrogenics.com/role/DisclosureFinancialLiabilities
241 Implied Table Table

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242 Financial Liabilities [abstract] Abstract ifrs-full:DisclosureOfFinancialLiabilitiesAbstract
243 Financial Liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialLiabilitiesExplanatory
244 11801 - Disclosure - Provisions Network

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 http://www.hydrogenics.com/role/DisclosureProvisions
245 Implied Table Table

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246 Provisions [abstract] Abstract ifrs-full:WarrantyProvisionAbstract
247 Provisions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherProvisionsContingentLiabilitiesAndContingentAssetsExplanatory
248 11901 - Disclosure - Lines of Credit and Bank Guarantees Network

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249 Implied Table Table

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250 Lines of Credit and Bank Guarantees [abstract] Abstract ifrs-full:DisclosureOfCreditRiskExposureAbstract
251 Lines of Credit and Bank Guarantees Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsExplanatory
252 12001 - Disclosure - Other Non-current Liabilities Network

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253 Implied Table Table

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254 Other Non-current Liabilities [abstract] Abstract ifrs-full:MiscellaneousNoncurrentLiabilitiesAbstract
255 Other Non-current Liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherNoncurrentLiabilitiesExplanatory
256 12101 - Disclosure - Share Capital Network

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 http://www.hydrogenics.com/role/DisclosureShareCapital
257 Implied Table Table

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258 Share Capital [abstract] Abstract ifrs-full:DisclosureOfClassesOfShareCapitalAbstract
259 Share Capital Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory
260 12201 - Disclosure - Stock-Based Compensation Network

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261 Implied Table Table

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262 Stock-Based Compensation [abstract] Abstract ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract
263 Stock-Based Compensation Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSharebasedPaymentArrangementsExplanatory
264 12301 - Disclosure - Selling, General and Administrative Expenses Network

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265 Implied Table Table

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266 Selling, General and Administrative Expenses [abstract] Abstract ifrs-full:SellingGeneralAndAdministrativeExpenseAbstract
267 Selling, General and Administrative Expenses Concept (Text Block (HTML)) For Period hygs:DisclosureOfSellingGeneralAndAdministrativeExpensesTextBlock
268 12401 - Disclosure - Research and Product Development Expenses Network

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269 Implied Table Table

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270 Research and Product Development Expenses [abstract] Abstract hygs:ResearchAndProductDevelopmentExpensesAbstract
271 Research and Product Development Expenses Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfResearchAndDevelopmentExpenseExplanatory
272 12501 - Disclosure - Key Management Compensation Network

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273 Implied Table Table

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529 Computer Hardware [member] Member ifrs-full:ComputerEquipmentMember
530 Automobiles [member] Member ifrs-full:MotorVehiclesMember
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532 Property, plant and equipment, useful lives or amortisation rates Concept (Percent) For Period hygs:PropertyPlantAndEquipmentUsefulLivesOrAmortisationRates
533 40401 - Disclosure - Significant Accounting Judgments and Estimation Uncertainties (Narrative) (Details) Network

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534 Significant Accounting Judgments and Estimation Uncertainties [table] Table

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539 Warranty Period Concept (xbrli:durationItemType) For Period hygs:WarrantyPeriod
540 40502 - Disclosure - IFRS 9 Financial Instruments & IFRS 15 Revenue from Contracts with Customers - Impact of Adoption (Schedule Of Adjustments To Balance Sheets) (Details) Network

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541 Disclosure of reclassifications or changes in presentation [table] Table

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542 Initially applied IFRSs [axis] Axis ifrs-full:InitiallyAppliedIFRSsAxis
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550 Retrospective application and retrospective restatement [axis] Axis ifrs-full:RetrospectiveApplicationAndRetrospectiveRestatementAxis
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552 Restatement [member] Member hygs:RestatementMember
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556 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
557 Restricted cash Concept (Monetary) As Of Debit ifrs-full:CurrentRestrictedCashAndCashEquivalents
558 Trade and other receivables Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
559 Contract assets Concept (Monetary) As Of Debit ifrs-full:CurrentContractAssets
560 Inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
561 Prepaid expenses Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaidExpenses
562 Total current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
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565 Non-current receivables Concept (Monetary) As Of Debit ifrs-full:NoncurrentReceivables
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567 Investment in joint ventures Concept (Monetary) As Of Debit ifrs-full:InvestmentsInJointVenturesAccountedForUsingEquityMethod
568 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
569 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
570 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
571 Total non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
572 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
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574 Current liabilities Abstract ifrs-full:CurrentLiabilitiesAbstract
575 Operating borrowings Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
576 Trade and other payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
577 Contract liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentContractLiabilities
578 Financial liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentFinancialLiabilities
579 Provisions Concept (Monetary) As Of Credit ifrs-full:OtherShorttermProvisions
580 Deferred funding Concept (Monetary) As Of Credit hygs:DeferredFundingClassifiedAsCurent
581 Deferred revenue Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsCurrent
582 Total current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
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585 Contract liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentContractLiabilities
586 Provisions Concept (Monetary) As Of Credit ifrs-full:OtherLongtermProvisions
587 Deferred funding Concept (Monetary) As Of Credit hygs:DeferredFundingClassifedAsNoncurrent
588 Deferred revenue Concept (Monetary) As Of Credit ifrs-full:DeferredIncomeClassifiedAsNoncurrent
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595 Deficit Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
596 Total equity Concept (Monetary) As Of Credit ifrs-full:Equity
597 Total equity and liabilities Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
598 40503 - Disclosure - IFRS 9 Financial Instruments & IFRS 15 Revenue from Contracts with Customers - Impact of Adoption (Schedule Of Adjustments To Statement Of Operations And Comprehensive Loss) (Details) Network

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599 Disclosure of reclassifications or changes in presentation [table] Table

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600 Initially applied IFRSs [axis] Axis ifrs-full:InitiallyAppliedIFRSsAxis
601 Initially applied IFRSs [member] Member ifrs-full:InitiallyAppliedIFRSsMember
602 IFRS 15 [member] Member hygs:Ifrs15Member
603 Reclassified items [axis] Axis ifrs-full:ReclassifiedItemsAxis
604 Reclassified items [member] Member ifrs-full:ReclassifiedItemsMember
605 Previously reported [member] Member hygs:PreviouslyReportedMember
606 Remeasurements [member] Member hygs:RemeasurementsMember
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609 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
610 Gross profit Concept (Monetary) For Period Credit ifrs-full:GrossProfit
611 Operating expenses Abstract hygs:OperatingExpensesAbstract
612 Selling, general and administrative expenses Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
613 Research and product development expenses Concept (Monetary) For Period Debit ifrs-full:ResearchAndDevelopmentExpense
614 Total operating expenses Concept (Monetary) For Period Debit ifrs-full:OperatingExpenseExcludingCostOfSales
615 Loss from operations Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
616 Loss from joint ventures Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
617 Finance income (loss) Abstract hygs:FinanceIncomeExpensesAbstract
618 Interest expense, net on financial instruments measured at amortized cost Concept (Monetary) For Period Credit ifrs-full:InterestRevenueExpense
619 Foreign currency gains net Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
620 Other finance gains (losses), net Concept (Monetary) For Period Credit ifrs-full:OtherFinanceIncomeCost
621 Finance loss, net Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
622 Loss before income taxes Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
623 Income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
624 Net loss for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
625 Items that will not be reclassified subsequently to net loss: Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract
626 Re-measurement of actuarial liability Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
627 Items that may be reclassified subsequently to net loss Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract
628 Exchange differences on translating foreign operations Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
629 Comprehensive loss for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
630 40701 - Disclosure - Cash and Cash Equivalents and Restricted Cash (Narrative) (Details) Network

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631 Implied Table Table

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632 Cash and Cash Equivalents and Restricted Cash [abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
633 Standby letters of credit and letters of guarantee Concept (Monetary) As Of Credit hygs:StandbyLettersOfCreditAndLettersOfGuarantee
634 40702 - Disclosure - Cash and Cash Equivalents and Restricted Cash (Schedule of Cash and Cash Equivalents and Restricted Cash) (Details) Network

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635 Implied Table Table

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636 Cash and Cash Equivalents and Restricted Cash [abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
637 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
638 Restricted cash Concept (Monetary) As Of Debit ifrs-full:CurrentRestrictedCashAndCashEquivalents
639 Restricted cash - non-current Concept (Monetary) As Of Debit ifrs-full:NoncurrentRestrictedCashAndCashEquivalents
640 Total Concept (Monetary) As Of Debit hygs:CashCashEquivalentsAndRestrictedCash
641 40802 - Disclosure - Trade and Other Receivables (Schedule of Trade and Other Receivables) (Details) Network

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642 Implied Table Table

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643 Trade and Other Receivables [abstract] Abstract ifrs-full:TradeAndOtherReceivablesAbstract
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646 Net trade accounts receivable Concept (Monetary) As Of Debit hygs:CurrentTradeAccountsReceivableNet
647 Other receivables Concept (Monetary) As Of Debit ifrs-full:OtherCurrentReceivables
648 Total trade and other receivables Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
649 40901 - Disclosure - Contract Assets And Contract Liabilities (Narrative) (Details) Network

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650 Disclosure of transaction price allocated to remaining performance obligations [table] Table

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653 Beyond 12-months [Member] Member hygs:Beyond12MonthsMember
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655 Contract assets relating to receivables Concept (Monetary) As Of Debit ifrs-full:ReceivablesFromContractsWithCustomers
656 Revenue recognized in relation to contract liabilities Concept (Monetary) For Period Credit ifrs-full:RevenueThatWasIncludedInContractLiabilityBalanceAtBeginningOfPeriod
657 Revenue from performance obligations satisfied or partially satisfied in previous periods Concept (Monetary) For Period Credit ifrs-full:RevenueFromPerformanceObligationsSatisfiedOrPartiallySatisfiedInPreviousPeriods
658 Expected balance to be recognized as revenues Concept (Monetary) As Of Credit ifrs-full:TransactionPriceAllocatedToRemainingPerformanceObligations
659 40902 - Disclosure - Contract Assets And Contract Liabilities (Schedule Of Contract Assets And Contract Liabilities) (Details) Network

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660 Disclosure of reclassifications or changes in presentation [table] Table

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663 $ change [member] Member hygs:DollarChangeMember
664 Disclosure of reclassifications or changes in presentation [line items] LineItems ifrs-full:DisclosureOfReclassificationsOrChangesInPresentationLineItems
665 Contract assets Concept (Monetary) As Of Debit ifrs-full:ContractAssets
666 Less: non-current portion Concept (Monetary) As Of Debit ifrs-full:NoncurrentContractAssets
667 Current portion Concept (Monetary) As Of Debit ifrs-full:CurrentContractAssets
668 Contract liabilities Concept (Monetary) As Of Credit ifrs-full:ContractLiabilities
669 Contract liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentContractLiabilities
670 Current portion Concept (Monetary) As Of Credit ifrs-full:CurrentContractLiabilities
671 40903 - Disclosure - Contract Assets And Contract Liabilities (Schedule Of Performance Obligations) (Details) Network

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 http://www.hydrogenics.com/role/DisclosureContractAssetsAndContractLiabilitiesScheduleOfPerformanceObligationsDetails
672 Disclosure of performance obligations [table] Table

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679 41001 - Disclosure - Inventories (Schedule of Inventories) (Details) Network

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680 Implied Table Table

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683 Work-in-progress Concept (Monetary) As Of Debit ifrs-full:WorkInProgress
684 Finished goods Concept (Monetary) As Of Debit ifrs-full:FinishedGoods
685 Total inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
686 41002 - Disclosure - Inventories (Inventory Obsolescence Provision) (Details) Network

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687 Disclosure of Inventories [table] Table

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693 Net increase in the provision Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInExistingProvisionsOtherProvisions
694 Writedowns during the period Concept (Monetary) For Period Debit ifrs-full:WritedownsReversalsOfInventories
695 Foreign exchange revaluation Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions
696 Ending balance Concept (Monetary) As Of Credit ifrs-full:OtherProvisions
697 41101 - Disclosure - Prepaid Expenses (Schedule Of Prepaid Expenses) (Details) Network

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698 Disclosure of assets recognised from costs to obtain or fulfil contracts with customers [table] Table

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 ifrs-full:DisclosureOfAssetsRecognisedFromCostsToObtainOrFulfilContractsWithCustomersTable
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702 Costs incurred to obtain contracts with customers [member] Member ifrs-full:CostsToObtainContractsWithCustomersMember
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704 Prepaid expenses Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaidExpenses
705 Amortized costs incurred to obtain contracts with customers Concept (Monetary) For Period Debit ifrs-full:AmortisationAssetsRecognisedFromCostsIncurredToObtainOrFulfilContractsWithCustomers
706 41201 - Disclosure - Investment in Joint Ventures (Narrative) (Details) Network

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 http://www.hydrogenics.com/role/DisclosureInvestmentInJointVenturesNarrativeDetails
707 Disclosure of joint ventures [table] Table

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708 Counterparties [axis] Axis ifrs-full:CounterpartiesAxis
709 Counterparties[member] Member ifrs-full:CounterpartiesMember
710 Enbridge [member] Member hygs:EnbridgeMember
711 Kolon Water And Energy Co. Ltd [member] Member hygs:KolonWaterAndEnergyCo.LtdMember
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713 Entity's total for joint ventures [member] Member ifrs-full:EntitysTotalForJointVenturesMember
714 2562961 Ontario Ltd. [member] Member hygs:OntarioLtd.Member
715 Kolon Hydrogenics [member] Member hygs:KolonHydrogenicsMember
716 Disclosure of joint ventures [line items] LineItems ifrs-full:DisclosureOfJointVenturesLineItems
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719 Number of Board of Directors in joint venture Concept (Integer) For Period hygs:NumberOfBoardOfDirectorsInJointVenture
720 Number of nominees in the board of directors from each party in the joint venture Concept (Integer) For Period hygs:NumberOfNomineesInBoardOfDirectorsFromEachPartyInJointVenture
721 Sold joint venture assets Concept (Monetary) For Period Credit ifrs-full:SalesOfPropertyAndOtherAssetsRelatedPartyTransactions
722 Proceeds from sales of investment property Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfInvestmentProperty
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724 Capitalized cost of equity investment Concept (Monetary) For Period Debit hygs:CapitalizedCostOfEquityInvestment
725 Legal costs capitalized Concept (Monetary) For Period Debit hygs:LegalCostsCapitalized
726 41202 - Disclosure - Investment in Joint Ventures (Joint Venture Using Equity Method) (Details) Network

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 http://www.hydrogenics.com/role/DisclosureInvestmentInJointVenturesJointVentureUsingEquityMethodDetails
727 Disclosure of joint ventures [table] Table

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 ifrs-full:DisclosureOfJointVenturesTable
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732 Disclosure of joint ventures [line items] LineItems ifrs-full:DisclosureOfJointVenturesLineItems
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734 Equity investment in joint venture Concept (Monetary) For Period Debit hygs:AdditionsInEquityMethodInvestment
735 Loss from investment in joint venture using HLBV method Concept (Monetary) For Period Credit hygs:ProfitLossOfInvestmentInJointVentureUsingHlbvMethod
736 Amortization of deferred loss on disposal Concept (Monetary) For Period Credit ifrs-full:ProfitsLossesOnDisposalOfInvestmentsAndChangesInValueOfInvestments
737 Share in gain (loss) of joint venture Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfJointVenturesAccountedForUsingEquityMethod
738 Foreign currency translation (loss) gain Concept (Monetary) For Period Debit hygs:IncreaseDecreaseThroughNetExchangeDifferencesEquityMethodInvestment
739 Investment in joint venture, ending balance Concept (Monetary) As Of Debit ifrs-full:InvestmentsInJointVenturesAccountedForUsingEquityMethod
740 41203 - Disclosure - Investment in Joint Ventures (Summary Of Balance Sheet Information) (Details) Network

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*

 http://www.hydrogenics.com/role/DisclosureInvestmentInJointVenturesSummaryOfBalanceSheetInformationDetails
741 Disclosure of joint ventures [table] Table

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*

 ifrs-full:DisclosureOfJointVenturesTable
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748 Non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
749 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
750 Liabilities [abstract] Abstract ifrs-full:LiabilitiesAbstract
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752 Non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
753 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
754 Net assets (liabilities) Concept (Monetary) As Of Debit ifrs-full:NetAssetsLiabilities
755 41204 - Disclosure - Investment in Joint Ventures (Summary Of Gain (Loss) From Continuing Operations And Total Comprehensive Income (Loss)) (Details) Network

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756 Disclosure of joint ventures [table] Table

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*

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760 Disclosure of joint ventures [line items] LineItems ifrs-full:DisclosureOfJointVenturesLineItems
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762 Earnings before income taxes Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
763 Joint venture gain (loss) from continuing operations Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
764 41205 - Disclosure - Investment in Joint Ventures (Reconciliation Of Joint Venture's Financial Information To Carrying Amount) (Details) Network

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 http://www.hydrogenics.com/role/DisclosureInvestmentInJointVenturesReconciliationOfJointVentureSFinancialInformationToCarryingAmountDetails
765 Disclosure of joint ventures [table] Table

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*

 ifrs-full:DisclosureOfJointVenturesTable
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767 Counterparties[member] Member ifrs-full:CounterpartiesMember
768 Kolon Water And Energy Co. Ltd [member] Member hygs:KolonWaterAndEnergyCo.LtdMember
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770 Entity's total for joint ventures [member] Member ifrs-full:EntitysTotalForJointVenturesMember
771 2562961 Ontario Ltd. [member] Member hygs:OntarioLtd.Member
772 Disclosure of joint ventures [line items] LineItems ifrs-full:DisclosureOfJointVenturesLineItems
773 Investment in joint venture, beginning balance Concept (Monetary) As Of Debit ifrs-full:InvestmentsInJointVenturesAccountedForUsingEquityMethod
774 Equity investment in joint venture Concept (Monetary) For Period Debit hygs:AdditionsInEquityMethodInvestment
775 Joint venture earnings during the year Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfJointVenturesAccountedForUsingEquityMethod
776 Foreign currency translation (loss) gain Concept (Monetary) For Period Debit hygs:IncreaseDecreaseThroughNetExchangeDifferencesEquityMethodInvestment
777 Investment in joint venture, ending balance Concept (Monetary) As Of Debit ifrs-full:InvestmentsInJointVenturesAccountedForUsingEquityMethod
778 Unrealized (gains) losses on sales Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfInvestments
779 Adjusted net assets Concept (Monetary) As Of Debit hygs:NetAssetsAdjustedBalanceInJointVenture
780 Company's share of net assets using the HLBV method Concept (Monetary) As Of Debit hygs:ShareOfNetAssetsInJointVenture
781 Plus: Capitalization of legal costs Concept (Monetary) As Of Debit hygs:CapitalizationOfLegalCosts
782 Less: amortization of deferred loss on disposal Concept (Monetary) For Period Credit ifrs-full:ProfitsLossesOnDisposalOfInvestmentsAndChangesInValueOfInvestments
783 Investment in joint venture, ending balance Concept (Monetary) As Of Debit hygs:ShareOfNetAssetsInJointVentureAfterCapitalization
784 Proportion of ownership interest in joint venture Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInJointVenture
785 41301 - Disclosure - Property, Plant and Equipment (Narrative) (Details) Network

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

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817 41401 - Disclosure - Intangible Assets (Narrative) (Details) Network

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818 Implied Table Table

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859 Implied Table Table

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863 Goodwill, ending balance Concept (Monetary) As Of Debit ifrs-full:Goodwill
864 41601 - Disclosure - Trade and Other Payables (Schedule Of Accounts Payable and Accrued Liabilities) (Details) Network

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*

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873 41701 - Disclosure - Financial Liabilities (Narrative) (Details) Network

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880 Export Development Canada [member] Member hygs:ExportDevelopmentCanadaMember
881 Syndicate of Lenders [member] Member hygs:SyndicateOfLendersMember
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887 Fair value of warrants Concept (Monetary) For Period Credit hygs:FairValueOfWarrants
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889 41702 - Disclosure - Financial Liabilities (Schedule of Financial Liabilities) (Details) Network

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890 Disclosure of financial liabilities [table] Table

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900 41703 - Disclosure - Financial Liabilities (Schedule of Weighted Average Assumptions of Warrants) (Details) Network

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901 Disclosure of financial liabilities [table] Table

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909 41801 - Disclosure - Provisions (Schedule Of Changes In Aggregate Provisions) (Details) Network

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910 Disclosure of other provisions [table] Table

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918 Utilized during the period Concept (Monetary) For Period Debit ifrs-full:ProvisionUsedOtherProvisions
919 Unused amounts reversed Concept (Monetary) For Period Debit ifrs-full:UnusedProvisionReversedOtherProvisions
920 Foreign currency translation Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions
921 Ending balance Concept (Monetary) As Of Credit ifrs-full:OtherProvisions
922 Less current portion Concept (Monetary) As Of Credit ifrs-full:OtherShorttermProvisions
923 Long-term provision Concept (Monetary) As Of Credit ifrs-full:OtherLongtermProvisions
924 41901 - Disclosure - Lines of Credit and Bank Guarantees (Narrative) (Details) Network

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 http://www.hydrogenics.com/role/DisclosureLinesOfCreditAndBankGuaranteesNarrativeDetails
925 Disclosure of detailed information about borrowings [table] Table

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929 Top of Range [member] Member ifrs-full:TopOfRangeMember
930 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
931 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
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934 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
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936 General Business Purposes [member] Member hygs:GeneralBusinessPurposesMember
937 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
938 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
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940 Operating Line [member] Member hygs:OperatingLineMember
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952 42001 - Disclosure - Other Non-current Liabilities (Narrative) (Details) Network

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953 Disclosure of financial liabilities [table] Table

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989 42002 - Disclosure - Other Non-current Liabilities (Schedule of Non-current Liabilities) (Details) Network

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990 Disclosure of financial liabilities [table] Table

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1001 42003 - Disclosure - Other Non-current Liabilities (Schedule of Change in Carrying Value of Liability - Export Development Canada) (Details) Network

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1002 Disclosure of financial liabilities [table] Table

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1011 Revaluation of variable rate long-term debt (note 28) Concept (Monetary) For Period Debit hygs:RevaluationOfVariableRateLongTermDebt
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1013 42004 - Disclosure - Other Non-current Liabilities (Schedule of Change in Carrying Value of Liability - Province of Ontario) (Details) Network

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1014 Disclosure of financial liabilities [table] Table

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1024 Liability, ending balance Concept (Monetary) As Of Credit ifrs-full:LiabilitiesArisingFromFinancingActivities
1025 42006 - Disclosure - Other Non-current Liabilities (Schedule of Change in Carrying Value of Liability - Post Retirement Benefit Liabilities) (Details) Network

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1026 Disclosure of financial liabilities [table] Table

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1036 Foreign currency translation Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities
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1038 42007 - Disclosure - Other Non-current Liabilities (Schedule of Plan Benefits) (Details) Network

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1039 Disclosure of financial liabilities [table] Table

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1047 42101 - Disclosure - Share Capital (Narrative) (Details) Network

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*

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1048 Disclosure of classes of share capital [table] Table

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1066 42102 - Disclosure - Share Capital (Schedule of Share Capital Number and Amount Outstanding) (Details) Network

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1067 Statement of changes in equity [table] Table

*

*

 ifrs-full:StatementOfChangesInEquityTable
1068 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1069 Equity [member] Member ifrs-full:EquityMember
1070 Common Shares [member] Member ifrs-full:OrdinarySharesMember
1071 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
1072 Beginning Balance, Number of shares Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1073 Adjustment for partial shares on share consolidation, Number of shares Concept (Shares) For Period hygs:AdjustmentForPartialSharesOnShareConsolidation
1074 Issuance of common shares, Number of shares Concept (Shares) For Period ifrs-full:IncreaseDecreaseInNumberOfSharesOutstanding
1075 Warrants exercised, Number of shares Concept (Shares) For Period hygs:WarrantsExercisedShares
1076 Issuance of common shares on vesting of performance share units, Number of shares Concept (Decimal) As Of ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement
1077 Issuance of common shares on exercise of stock options, Number of shares Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
1078 Ending Balance, Number of shares Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1079 Beginning Balance, Amount Concept (Monetary) As Of Credit ifrs-full:Equity
1080 Adjustment for partial shares on share consolidation, Amount Concept (Monetary) For Period Credit hygs:AdjustmentForPartialSharesOnShareConsolidationAmount
1081 Issuance of common shares, Amount Concept (Monetary) For Period Credit ifrs-full:IssueOfEquity
1082 Warrants exercised, Amount Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughExerciseOfWarrantsEquity
1083 Issuance of common shares on vesting of performance share units, Amount Concept (Monetary) For Period Credit hygs:IncreaseDecreaseThroughIssuanceOfCommonSharesOnVestingOfPerformanceShareUnits
1084 Issuance of common shares on exercise of stock options, Amount Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughExerciseOfOptions
1085 Ending Balance, Amount Concept (Monetary) As Of Credit ifrs-full:Equity
1086 42103 - Disclosure - Share Capital (Schedule of Share Capital Activity) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureShareCapitalScheduleOfShareCapitalActivityDetails
1087 Implied Table Table

*

*

 implied:Table
1088 Share Capital [abstract] Abstract ifrs-full:DisclosureOfClassesOfShareCapitalAbstract
1089 Beginning Balance, Number of shares Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1090 Fair value of warrants exercised, Number of shares Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
1091 Ending Balance, Number of shares Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1092 Beginning Balance, Amount Concept (Monetary) As Of Credit ifrs-full:Equity
1093 Fair value of warrants exercised, Amount Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughExerciseOfWarrantsEquity
1094 Cash proceeds on exercise, Amount Concept (Monetary) For Period Debit ifrs-full:ProceedsFromExerciseOfOptions
1095 Ending Balance, Amount Concept (Monetary) As Of Credit ifrs-full:Equity
1096 42201 - Disclosure - Stock-Based Compensation (Narrative) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureStockBasedCompensationNarrativeDetails
1097 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1098 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1099 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1100 Stock Option Plan [member] Member hygs:StockOptionPlanMember
1101 Omnibus Incentive Plan [member] Member hygs:OmnibusIncentivePlanMember
1102 Restricted Share Units [member] Member hygs:RestrictedShareUnitsMember
1103 Performance Share Units [member] Member hygs:PerformanceShareUnitsMember
1104 Stock Options, RSU's and PSU's [member] Member hygs:StockOptionsRsuSAndPsuSMember
1105 Deferred Share Units [member] Member hygs:DeferredShareUnitsMember
1106 Deferred Share Units - New Issuance (Net Of Cancellations) [member] Member hygs:DeferredShareUnitsNewIssuanceNetOfCancellationsMember
1107 Deferred Share Units - Mark-To-Market Adjustment [member] Member hygs:DeferredShareUnitsMarkToMarketAdjustmentMember
1108 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1109 Number of options outstading Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1110 Vested Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
1111 Shares available for issuance Concept (Shares) For Period hygs:NumberOfSharesAvailableForIssuance
1112 Shares outstanding Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1113 Stock options exercised Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
1114 Cash proceeds from stock options exercised Concept (Monetary) For Period Debit ifrs-full:ProceedsFromExerciseOfOptions
1115 Increase in equity Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
1116 Contributed surplus Concept (Monetary) For Period Credit hygs:AdjustmentsToAdditionalPaidInCapitalShareBasedCompensation
1117 Options granted Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
1118 Average fair value per option Concept (Monetary) As Of Credit ifrs-full:WeightedAverageFairValueAtMeasurementDateShareOptionsGranted
1119 Stock-based compensation expense Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
1120 Expected term Concept (xbrli:durationItemType) For Period hygs:IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm
1121 Vesting period Concept (xbrli:durationItemType) For Period hygs:ShareBasedCompensationVestingPeriod
1122 Recovery/expense fair value adjustment Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForFairValueGainsLosses
1123 Liability of stock-based compensation Concept (Monetary) As Of Credit ifrs-full:LiabilitiesFromSharebasedPaymentTransactions2011
1124 42202 - Disclosure - Stock-Based Compensation (Summary of Company's Stock Option Plan) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureStockBasedCompensationSummaryOfCompanySStockOptionPlanDetails
1125 Implied Table Table

*

*

 implied:Table
1126 Stock-Based Compensation [abstract] Abstract ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract
1127 Number of shares outstanding, beginning of period Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1128 Number of shares granted Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
1129 Number of shares exercised Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
1130 Number of shares forefeited Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement
1131 Number of shares expired Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement
1132 Number of shares outstanding, end of period Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1133 Weighted average exercise price, outstanding, beginning of period Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
1134 Weighted average exercise price, granted Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement
1135 Weighted average exercise price, exercised Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement
1136 Weighted average exercise price, forfeited Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement
1137 Weighted average exercise price, expired Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement
1138 Weighted average exercise price, outstanding, end of period Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
1139 42203 - Disclosure - Stock-Based Compensation (Summary of Fair Value Determination Assumptions) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureStockBasedCompensationSummaryOfFairValueDeterminationAssumptionsDetails
1140 Implied Table Table

*

*

 implied:Table
1141 Stock-Based Compensation [abstract] Abstract ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementAbstract
1142 Risk-free interest rate (%) Concept (Percent) For Period ifrs-full:DescriptionOfRiskFreeInterestRateShareOptionsGranted
1143 Expected volatility (%) Concept (Percent) For Period ifrs-full:DescriptionOfExpectedVolatilityShareOptionsGranted
1144 Expected life in years Concept (Decimal) For Period ifrs-full:DescriptionOfOptionLifeShareOptionsGranted
1145 42204 - Disclosure - Stock-Based Compensation (Summary of Stock Options Outstanding ) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureStockBasedCompensationSummaryOfStockOptionsOutstandingDetails
1146 Disclosure of number and weighted average remaining contractual life of outstanding share options [table] Table

*

*

 ifrs-full:DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsTable
1147 Ranges of exercise prices for outstanding share options [axis] Axis ifrs-full:RangesOfExercisePricesForOutstandingShareOptionsAxis
1148 Ranges of exercise prices for outstanding share options [member] Member ifrs-full:RangesOfExercisePricesForOutstandingShareOptionsMember
1149 Exercise Price 13.25 [member] Member hygs:ExercisePrice13.25Member
1150 Exercise Price 4.91 [member] Member hygs:ExercisePrice4.91Member
1151 Exercise Price 6.96 [member] Member hygs:ExercisePrice6.96Member
1152 Exercise Price 5.03 [member] Member hygs:ExercisePrice5.03Member
1153 Exercise Price 6.25 [member] Member hygs:ExercisePrice6.25Member
1154 Exercise Price 6.60 [member] Member hygs:ExercisePrice6.60Member
1155 Exercise Price 8.10 [member] Member hygs:ExercisePrice8.10Member
1156 Exercise Price 16.14 [member] Member hygs:ExercisePrice16.14Member
1157 Exercise Price 10.53 [member] Member hygs:ExercisePrice10.53Member
1158 Exercise Price 8.56 [member] Member hygs:ExercisePrice8.56Member
1159 Exercise Price 11.41 [member] Member hygs:ExercisePrice11.41Member
1160 Exercise Price 10.45 [member] Member hygs:ExercisePrice10.45Member
1161 Exercise Price 8.37 [member] Member hygs:ExercisePrice8.37Member
1162 Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] LineItems ifrs-full:DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsLineItems
1163 Total number of options Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1164 Weighted average remaining contractual life (in years) Concept (Decimal) As Of ifrs-full:WeightedAverageRemainingContractualLifeOfOutstandingShareOptions
1165 Exercise price Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
1166 Number of vested options Concept (Decimal) As Of ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement
1167 Weighted average remaining contractual life (in years) Concept (xbrli:durationItemType) For Period hygs:WeightedAverageRemainingContractualLifeOfExercisableShareOptions
1168 Exercise price Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement
1169 42205 - Disclosure - Stock-Based Compensation (Summary of Company's Preferred Stock Unit Activity) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureStockBasedCompensationSummaryOfCompanySPreferredStockUnitActivityDetails
1170 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1171 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1172 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1173 Performance Share Units [member] Member hygs:PerformanceShareUnitsMember
1174 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1175 Beginning balance, Number Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1176 Expired Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsExpiredInSharebasedPaymentArrangement
1177 Vested - share issuance Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
1178 Cancellation, Number Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement
1179 PSUs issued Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
1180 Ending balance, Number Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1181 42206 - Disclosure - Stock-Based Compensation (Summary of Company's Restricted Share Unit Acitivity) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureStockBasedCompensationSummaryOfCompanySRestrictedShareUnitAcitivityDetails
1182 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1183 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1184 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1185 Restricted Share Units [member] Member hygs:RestrictedShareUnitsMember
1186 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1187 Beginning balance, Number Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1188 RSUs issued Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
1189 Ending balance, Number Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1190 42208 - Disclosure - Stock-Based Compensation (Summary of Deferred Share Unit Activity) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureStockBasedCompensationSummaryOfDeferredShareUnitActivityDetails
1191 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1192 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1193 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1194 Deferred Share Units [member] Member hygs:DeferredShareUnitsMember
1195 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1196 Beginning balance, Number Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1197 Compensation expense, Number Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
1198 Cancellation, Number Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement
1199 Fair value adjustments, Number Concept (Shares) For Period hygs:OtherEquityInstrumentsOutstandingFairValueAdjustmentsNumberOfShares
1200 Ending balance, Number Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1201 Beginning balance, Amount Concept (Monetary) As Of Debit hygs:ValueOfOtherEquityInstrumentsOutstandingInShareBasedPaymentArrangement
1202 Compensation expense, Amount Concept (Monetary) For Period Debit hygs:ValueOfOtherEquityInstrumentsCompensationExpenseInShareBasedPaymentArrangementValue
1203 Cancellation, Amount Concept (Monetary) For Period Credit hygs:ValueOfOtherEquityInstrumentsForfeitedAmountInShareBasedPaymentArrangementValue
1204 Fair value adjustments, Amount Concept (Monetary) For Period Debit hygs:OtherEquityInstrumentsOutstandingFairValueAdjustments
1205 Ending balance, Amount Concept (Monetary) As Of Debit hygs:ValueOfOtherEquityInstrumentsOutstandingInShareBasedPaymentArrangement
1206 42209 - Disclosure - Stock-Based Compensation (Summary of Company's Stock-Based Compensation Expense (Recovery)) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureStockBasedCompensationSummaryOfCompanySStockBasedCompensationExpenseRecoveryDetails
1207 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1208 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1209 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1210 Stock Options [member] Member hygs:StockOptionsMember
1211 Performance Share Units [member] Member hygs:PerformanceShareUnitsMember
1212 Restricted Share Units [member] Member hygs:RestrictedShareUnitsMember
1213 Stock Options, RSU's and PSU's [member] Member hygs:StockOptionsRsuSAndPsuSMember
1214 Deferred Share Units - New Issuance (Net Of Cancellations) [member] Member hygs:DeferredShareUnitsNewIssuanceNetOfCancellationsMember
1215 Deferred Share Units - Mark-To-Market Adjustment [member] Member hygs:DeferredShareUnitsMarkToMarketAdjustmentMember
1216 Deferred Share Units [member] Member hygs:DeferredShareUnitsMember
1217 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1218 Stock-based compensation expense Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
1219 Mark-to-market adjustments Concept (Monetary) For Period Debit hygs:OtherEquityInstrumentsOutstandingFairValueAdjustments
1220 42302 - Disclosure - Selling, General and Administrative Expenses (Summary of Selling, General and Administrative Expenses) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureSellingGeneralAndAdministrativeExpensesSummaryOfSellingGeneralAndAdministrativeExpensesDetails
1221 Disclosure of terms and conditions of share-based payment arrangement [table] Table

*

*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1222 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1223 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1224 Stock Options, RSU's and PSU's [member] Member hygs:StockOptionsRsuSAndPsuSMember
1225 Restricted Share Units [member] Member hygs:RestrictedShareUnitsMember
1226 Deferred Share Units [member] Member hygs:DeferredShareUnitsMember
1227 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1228 Salaries and benefits, office administration and other expenses Concept (Monetary) For Period Debit ifrs-full:OtherEmployeeExpense
1229 Depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
1230 Amortization Concept (Monetary) For Period Debit ifrs-full:AmortisationExpense
1231 Stock-based compensation expense Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
1232 Total Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
1233 42401 - Disclosure - Research and Product Development Expenses (Schedule of Research and Development Expenses) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureResearchAndProductDevelopmentExpensesScheduleOfResearchAndDevelopmentExpensesDetails
1234 Implied Table Table

*

*

 implied:Table
1235 Research and Product Development Expenses [abstract] Abstract hygs:ResearchAndProductDevelopmentExpensesAbstract
1236 Research and product development expenses Concept (Monetary) For Period Debit hygs:ResearchAndProductDevelopmentExpenses
1237 Government research and product development funding Concept (Monetary) For Period Credit hygs:GovernmentResearchAndProductDevelopmentFunding
1238 Research and development expense Concept (Monetary) For Period Debit ifrs-full:ResearchAndDevelopmentExpense
1239 42501 - Disclosure - Key Management Compensation (Schedule of Key Management Compensation) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureKeyManagementCompensationScheduleOfKeyManagementCompensationDetails
1240 Implied Table Table

*

*

 implied:Table
1241 Key Management Compensation [abstract] Abstract ifrs-full:DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesAbstract
1242 Salaries and short-term employee benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
1243 DSUs Concept (Monetary) For Period Debit hygs:KeyManagementPersonnelDeferredStockUnits
1244 Stock options Concept (Monetary) For Period Debit hygs:KeyManagementPersonnelStockOptions
1245 RSUs Concept (Monetary) For Period Debit hygs:KeyManagementPersonnelRestrictedStockUnits
1246 PSUs Concept (Monetary) For Period Debit hygs:KeyManagementPersonnelPerformanceStockUnits
1247 Total Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
1248 42601 - Disclosure - Expenses by Nature (Schedule of Expenses by Nature) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureExpensesByNatureScheduleOfExpensesByNatureDetails
1249 Implied Table Table

*

*

 implied:Table
1250 Expenses by Nature [abstract] Abstract ifrs-full:ExpenseByNatureAbstract
1251 Raw materials and consumables used Concept (Monetary) For Period Debit ifrs-full:RawMaterialsAndConsumablesUsed
1252 Employee benefits Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
1253 Facilities Concept (Monetary) For Period Debit ifrs-full:UtilitiesExpense
1254 Professional services Concept (Monetary) For Period Debit ifrs-full:ProfessionalFeesExpense
1255 Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
1256 Shareholder and other corporate communications Concept (Monetary) For Period Debit ifrs-full:CommunicationExpense
1257 Insurance Concept (Monetary) For Period Debit ifrs-full:InsuranceExpense
1258 Marketing Concept (Monetary) For Period Debit ifrs-full:AdvertisingExpense
1259 Other Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
1260 Total Concept (Monetary) For Period Debit ifrs-full:ExpenseByNature
1261 42701 - Disclosure - Employee Benefits Expense (Schedule of Employee Benefits Expense) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureEmployeeBenefitsExpenseScheduleOfEmployeeBenefitsExpenseDetails
1262 Implied Table Table

*

*

 implied:Table
1263 Employee Benefits Expense [abstract] Abstract ifrs-full:ClassesOfEmployeeBenefitsExpenseAbstract
1264 Salaries and wages Concept (Monetary) For Period Debit ifrs-full:WagesAndSalaries
1265 Stock-based compensation (including equity-settled RSUs & PSUs), net of change in management estimate Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForSharebasedPayments
1266 Medical, dental and insurance Concept (Monetary) For Period Debit hygs:MedicalDentalAndInsuranceExpense
1267 Pension costs Concept (Monetary) For Period Debit ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans
1268 Stock-based compensation - DSUs Concept (Monetary) For Period Debit hygs:AdjustmentsForShareBasedPaymentsOfDeferredStockUnitsAndCashSettledRestrictedStockUnits
1269 Other Concept (Monetary) For Period Debit ifrs-full:OtherLongtermBenefits
1270 Total Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
1271 42801 - Disclosure - Other Finance Gains and Losses, Net (Schedule of Other Finance Gains and Losses, Net) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureOtherFinanceGainsAndLossesNetScheduleOfOtherFinanceGainsAndLossesNetDetails
1272 Implied Table Table

*

*

 implied:Table
1273 Other Finance Gains and Losses, Net [abstract] Abstract ifrs-full:GainsLossesOnFinancialInstrumentsAbstract
1274 Revaluation of variable rate long-term debt - EDC Concept (Monetary) For Period Debit hygs:RevaluationOfVariableRateLongTermDebt
1275 (Loss) gain from change in fair value of outstanding warrants Concept (Monetary) For Period Credit ifrs-full:GainsOnChangeInFairValueOfDerivatives
1276 (Loss) gain from change in fair value of outstanding warrants Concept (Monetary) For Period Debit ifrs-full:LossesOnChangeInFairValueOfDerivatives
1277 Total Concept (Monetary) For Period Credit ifrs-full:OtherFinanceIncomeCost
1278 42901 - Disclosure - Income Taxes (Narrative) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureIncomeTaxesNarrativeDetails
1279 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
1280 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
1281 2032 [member] Member hygs:UnusedTaxLossesExpirationPeriod10Member
1282 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
1283 Temporary Differences [member] Member ifrs-full:TemporaryDifferenceMember
1284 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
1285 Income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1286 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
1287 Deferred income tax asset recognized Concept (Monetary) For Period ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
1288 Income tax loss carryforwards Concept (Monetary) For Period Credit ifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceDeferredTaxExpense
1289 Deferred tax losses Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
1290 42902 - Disclosure - Income Taxes (The Company's Computation of Income Tax Expense) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureIncomeTaxesCompanySComputationOfIncomeTaxExpenseDetails
1291 Implied Table Table

*

*

 implied:Table
1292 Income Taxes [abstract] Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
1293 Loss before income taxes Concept (Monetary) For Period Credit ifrs-full:AccountingProfit
1294 Statutory income tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
1295 Income tax recovery at statutory rates Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
1296 Non-deductible expenses Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss
1297 Withholding tax Concept (Monetary) For Period Debit hygs:TaxEffectOfWithholdingTax
1298 Tax losses and other temporary differences not recognized Concept (Monetary) For Period Credit ifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceCurrentTaxExpense
1299 Income taxes at different rates in foreign and other provincial jurisdictions Concept (Monetary) For Period Debit hygs:TaxEffectFromIncomeTaxesAtDifferentRatesInForeignAndOtherProvincialJurisdictions
1300 Other Concept (Monetary) For Period Debit ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
1301 Total Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
1302 42903 - Disclosure - Income Taxes (Available Income Tax Loss Carry-forwards Expiration) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureIncomeTaxesAvailableIncomeTaxLossCarryForwardsExpirationDetails
1303 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

*

*

 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
1304 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
1305 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
1306 2024 [member] Member hygs:UnusedTaxLossesExpirationPeriod2Member
1307 2025 [member] Member hygs:UnusedTaxLossesExpirationPeriod3Member
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1322 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
1323 42904 - Disclosure - Income Taxes (Componenets of the Company's Deductible Temporary Differences and Unused Tax Losses) (Details) Network

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1324 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

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1325 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
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1327 Non-capital Losses [member] Member hygs:TemporaryDifferenceNonCapitalLossesMember
1328 Investment Tax Credits [member] Member hygs:TemporaryDifferenceInvestmentTaxCreditMember
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1334 Deductible temporary differences and unused tax losses Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
1335 43001 - Disclosure - Net Loss Per Share (Narrative) (Details) Network

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*

 http://www.hydrogenics.com/role/DisclosureNetLossPerShareNarrativeDetails
1336 Implied Table Table

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*

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1339 43002 - Disclosure - Net Loss Per Share (Schedule of Net Loss Per Share) (Details) Network

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*

 http://www.hydrogenics.com/role/DisclosureNetLossPerShareScheduleOfNetLossPerShareDetails
1340 Implied Table Table

*

*

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1341 Net Loss Per Share [abstract] Abstract ifrs-full:EarningsPerShareAbstract
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1349 43101 - Disclosure - Commitments and Contingencies (Narrative) (Details) Network

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*

 http://www.hydrogenics.com/role/DisclosureCommitmentsAndContingenciesNarrativeDetails
1350 Disclosure of transactions between related parties [table] Table

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*

 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
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1354 Province of Ontario/Ministry of Research and Innovation ("MRI") [member] Member hygs:ProvinceOfOntarioMember
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1365 43102 - Disclosure - Commitments and Contingencies (Schedule of Costs to be Transferred to Joint Venture) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureCommitmentsAndContingenciesScheduleOfCostsToBeTransferredToJointVentureDetails
1366 Disclosure of assets recognised from costs to obtain or fulfil contracts with customers [table] Table

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*

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1370 Categories of assets recognised from costs to obtain or fulfil contracts with customers [axis] Axis ifrs-full:CategoriesOfAssetsRecognisedFromCostsToObtainOrFulfilContractsWithCustomersAxis
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1372 Funding Received from the IDF [member] Member hygs:FundingReceivedFromIdfMember
1373 Cumulative Costs Transferred to the Joint Venture [member] Member hygs:CumulativeCostsTransferredToJointVentureMember
1374 Foreign Exchange Loss On Disposal [member] Member hygs:ForeignExchangeLossOnDisposalMember
1375 Costs Recorded as Research And Product Development Costs [member] Member hygs:CostsRecordedAsResearchDevelopmentCostsMember
1376 Disclosure of assets recognised from costs to obtain or fulfil contracts with customers [line items] LineItems ifrs-full:DisclosureOfAssetsRecognisedFromCostsToObtainOrFulfilContractsWithCustomersLineItems
1377 Total cumulative cost of 2MW Power-To-Gas unit Concept (Monetary) As Of Debit ifrs-full:AssetsRecognisedFromCostsToObtainOrFulfilContractsWithCustomers
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1380 Funding for project Concept (Monetary) As Of Credit ifrs-full:OutstandingCommitmentsMadeByEntityRelatedPartyTransactions
1381 43103 - Disclosure - Commitments and Contingencies (Summary of Rental Expenses) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureCommitmentsAndContingenciesSummaryOfRentalExpensesDetails
1382 Disclosure of finance lease and operating lease by lessee [table] Table

*

*

 ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable
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1388 2022 [member] Member hygs:FourYearsMember
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1390 Thereafter [member] Member ifrs-full:LaterThanFiveYearsMember
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1393 43201 - Disclosure - Related Party Transactions (Narrative) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureRelatedPartyTransactionsNarrativeDetails
1394 Disclosure of transactions between related parties [table] Table

*

*

 ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable
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1399 Joint Venture - Kolon Hydrogenics [member] Member ifrs-full:JointVenturesWhereEntityIsVenturerMember
1400 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
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1404 Receivable from joint venture Concept (Monetary) As Of Debit ifrs-full:AmountsReceivableRelatedPartyTransactions
1405 43301 - Disclosure - Consolidated Statements of Cash Flows (Schedule of Components of Net Change in Non-cash Working Capital) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureConsolidatedStatementsOfCashFlowsScheduleOfComponentsOfNetChangeInNonCashWorkingCapitalDetails
1406 Implied Table Table

*

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1410 Inventories Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInInventories
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1416 43401 - Disclosure - Segmented Financial Information (Narrative) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureSegmentedFinancialInformationNarrativeDetails
1417 Implied Table Table

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*

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1418 Segmented Financial Information [abstract] Abstract ifrs-full:DisclosureOfOperatingSegmentsAbstract
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1420 43402 - Disclosure - Segmented Financial Information (Schedule of Reportable Segments) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureSegmentedFinancialInformationScheduleOfReportableSegmentsDetails
1421 Disclosure of operating segments [table] Table

*

*

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1432 Revenue transferred at point in time [member] Member ifrs-full:GoodsOrServicesTransferredAtPointInTimeMember
1433 Revenue transferred over time [member] Member ifrs-full:GoodsOrServicesTransferredOverTimeMember
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1457 43403 - Disclosure - Segmented Financial Information (Schedule of Property Plant and Equipment by Country) (Details) Network

*

*

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1458 Disclosure of geographical areas [table] Table

*

*

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1466 43404 - Disclosure - Segmented Financial Information (Schedule of Revenue from Customers) (Details) Network

*

*

 http://www.hydrogenics.com/role/DisclosureSegmentedFinancialInformationScheduleOfRevenueFromCustomersDetails
1467 Disclosure of geographical areas [table] Table

*

*

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1471 European Union [member] Member hygs:EuropeanUnionMember
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1485 Back-up power [member] Member hygs:BackUpPowerMember
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1497 Disclosure of geographical areas [line items] LineItems ifrs-full:DisclosureOfGeographicalAreasLineItems
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1500 43501 - Disclosure - Risk Management Arising From Financial Instruments (Narrative) (Details) Network

*

*

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1501 Disclosure of detailed information about financial instruments [table] Table

*

*

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1532 43502 - Disclosure - Risk Management Arising From Financial Instruments (Schedule of Fair Value Financial Instruments) (Details) Network

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*

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1533 Disclosure of detailed information about financial instruments [table] Table

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1543 Operating Borrowings [member] Member hygs:OperatingBorrowingsMember
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1546 DSU Liability [member] Member hygs:DsuLiabilityMember
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1552 43503 - Disclosure - Risk Management Arising From Financial Instruments (Schedule of Contractual Maturity of Net Financial Liabilities) (Details) Network

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*

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1553 Disclosure of maturity analysis for derivative financial liabilities [table] Table

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*

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1556 Due in Less Than 1 Year [member] Member hygs:DueInLessThan1YearMember
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1562 DSU Liability [member] Member hygs:DsuLiabilityMember
1563 Operating Borrowings [member] Member hygs:OperatingBorrowingsMember
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1565 Current Portion of Long-term Debt - Province of Ontario and Export Development Canada [member] Member hygs:CurrentPortionOfLongTermDebtProvinceOfOntarioAndExportDevelopmentCanadaMember
1566 Disclosure of maturity analysis for derivative financial liabilities [line items] LineItems ifrs-full:DisclosureOfMaturityAnalysisForDerivativeFinancialLiabilitiesLineItems
1567 Total Concept (Monetary) As Of Credit ifrs-full:DerivativeFinancialLiabilitiesUndiscountedCashFlows
1568 43505 - Disclosure - Risk Management Arising From Financial Instruments (Schedule of Exposure to Credit Risk by Aging Receivables) (Details) Network

*

*

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1569 Disclosure of financial assets that are either past due or impaired [table] Table

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*

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1574 Less Than 60 Days Past Due, More Than 30 Days Past Due [member] Member ifrs-full:LaterThanOneMonthAndNotLaterThanTwoMonthsMember
1575 More Than 60 Days Past Due [member] Member ifrs-full:LaterThanThreeMonthsMember
1576 Disclosure of financial assets that are either past due or impaired [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsThatAreEitherPastDueOrImpairedLineItems
1577 Total Concept (Percent) As Of ifrs-full:ExpectedCreditLossRate
1578 43506 - Disclosure - Risk Management Arising From Financial Instruments (Schedule of Exposure to Credit Risk for Trade Receivables by Geographic Area) (Details) Network

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 http://www.hydrogenics.com/role/DisclosureRiskManagementArisingFromFinancialInstrumentsScheduleOfExposureToCreditRiskForTradeReceivablesByGeographicAreaDetails
1579 Disclosure of credit risk exposure [table] Table

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 ifrs-full:DisclosureOfCreditRiskExposureTable
1580 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
1581 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
1582 Trade Receivables [member] Member ifrs-full:TradeReceivablesMember
1583 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1584 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1585 Europe [member] Member hygs:EuropeMember
1586 North America [member] Member hygs:NorthAmericaMember
1587 Asia [member] Member hygs:AsiaMember
1588 Rest of World [member] Member hygs:RestOfWorldMember
1589 Disclosure of credit risk exposure [line items] LineItems ifrs-full:DisclosureOfCreditRiskExposureLineItems
1590 Total Concept (Percent) As Of ifrs-full:ExpectedCreditLossRate
1591 43507 - Disclosure - Risk Management Arising From Financial Instruments (Schedule of Loss Allowance for Trade Receivables and Contract Assets) (Details) Network

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 http://www.hydrogenics.com/role/DisclosureRiskManagementArisingFromFinancialInstrumentsScheduleOfLossAllowanceForTradeReceivablesAndContractAssetsDetails
1592 Disclosure of financial assets that are either past due or impaired [table] Table

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*

 ifrs-full:DisclosureOfFinancialAssetsThatAreEitherPastDueOrImpairedTable
1593 Initially applied IFRSs [axis] Axis ifrs-full:InitiallyAppliedIFRSsAxis
1594 Initially applied IFRSs [member] Member ifrs-full:InitiallyAppliedIFRSsMember
1595 IAS 39 [member] Member hygs:Ias39Member
1596 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
1597 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
1598 Trade receivables and contract assets [member] Member hygs:TradeReceivablesAndContractAssetsMember
1599 Trade and Other Receivables [member] Member hygs:TradeAndOtherReceivablesMember
1600 Past due status [axis] Axis ifrs-full:PastDueStatusAxis
1601 Past due status [member] Member ifrs-full:PastDueStatusMember
1602 Not Due [member] Member hygs:NotDueMember
1603 Less Than 31 Days Past Due [member] Member ifrs-full:CurrentMember
1604 Less Than 60 Days Past Due, More Than 30 Days Past Due [member] Member ifrs-full:LaterThanOneMonthAndNotLaterThanTwoMonthsMember
1605 More Than 60 Days Past Due [member] Member ifrs-full:LaterThanThreeMonthsMember
1606 Associates [axis] Axis ifrs-full:SignificantInvestmentsInAssociatesAxis
1607 Entity's total for associates [member] Member ifrs-full:EntitysTotalForAssociatesMember
1608 Legal entities [member] Member hygs:LegalEntitiesMember
1609 Disclosure of financial assets that are either past due or impaired [line items] LineItems ifrs-full:DisclosureOfFinancialAssetsThatAreEitherPastDueOrImpairedLineItems
1610 Expected credit loss rate Concept (Percent) As Of ifrs-full:ExpectedCreditLossRate
1611 Gross carrying amount Concept (Monetary) As Of Debit ifrs-full:FinancialAssets
1612 Write-off of amounts deemed uncollectible against gross receivables Concept (Monetary) For Period ifrs-full:ReversalAllowanceAccountForCreditLossesOfFinancialAssets
1613 Loss allowance Concept (Monetary) As Of Credit ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets
1614 43508 - Disclosure - Risk Management Arising From Financial Instruments (Schedule of Exposure to Credit Risk Relating to Cash and Cash Equivalents and Restricted Cash on Deposit by Geographic Area) (Details) Network

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*

 http://www.hydrogenics.com/role/DisclosureRiskManagementArisingFromFinancialInstrumentsScheduleOfExposureToCreditRiskRelatingToCashAndCashEquivalentsAndRestrictedCashOnDepositByGeographicAreaDetails
1615 Disclosure of credit risk exposure [table] Table

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*

 ifrs-full:DisclosureOfCreditRiskExposureTable
1616 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
1617 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
1618 Cash and Cash Equivalents and Restricted Cash on Deposits [member] Member hygs:CashAndCashEquivalentsAndRestrictedCashOnDepositsMember
1619 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1620 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1621 Canada [member] Member hygs:CanadaMember
1622 Belgium [member] Member hygs:BelgiumMember
1623 Germany [member] Member hygs:GermanyMember
1624 Disclosure of credit risk exposure [line items] LineItems ifrs-full:DisclosureOfCreditRiskExposureLineItems
1625 Total Concept (Percent) As Of ifrs-full:ExpectedCreditLossRate
1626 43601 - Disclosure - Capital Management (Schedule of Capital) (Details) Network

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*

 http://www.hydrogenics.com/role/DisclosureCapitalManagementScheduleOfCapitalDetails
1627 Implied Table Table

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*

 implied:Table
1628 Capital Management [abstract] Abstract hygs:CapitalManagementAbstract
1629 Shareholders' equity Concept (Monetary) As Of Credit ifrs-full:Equity
1630 Operating borrowings Concept (Monetary) As Of Credit ifrs-full:ShorttermBorrowings
1631 Long-term debt and repayable government contributions Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
1632 Total Concept (Monetary) As Of Credit hygs:EquityOperatingBorrowingsAndLongTermDebtAndRepayableGovernmentContributions
1633 Less Cash and cash equivalents and restricted cash Concept (Monetary) As Of Debit hygs:CashCashEquivalentsAndRestrictedCash
1634 Total capital employed Concept (Monetary) As Of Credit ifrs-full:NetDebt
1635 43701 - Disclosure - Subsequent Events (Narrative) (Details) Network

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 http://www.hydrogenics.com/role/DisclosureSubsequentEventsNarrativeDetails
1636 Disclosure of non-adjusting events after reporting period [table] Table

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 ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodTable
1637 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
1638 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
1639 Private Placement Subscription Agreement With H2C [member] Member ifrs-full:MajorOrdinaryShareTransactionsMember
1640 Disclosure of non-adjusting events after reporting period [line items] LineItems ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems
1641 Shares issued Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
1642 Proceeds from issuing shares Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
1643 Price per share on private placement Concept (Share) For Period hygs:PricePerShareOnPrivatePlacement
1644 Subscription price premium percentage Concept (Percent) For Period hygs:SubscriptionPricePremiumPercentage
1645 Percentage of voting equity interests acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired

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