3.26.1 html 365 404 1 false 122 0 false 8 false false R1.htm 1001 - Document - Cover Sheet http://www.Boydgroup.com/role/Cover Cover Cover 1 false false R2.htm 1002 - Statement - Consolidated Statements of Financial Position Sheet http://www.Boydgroup.com/role/ConsolidatedStatementsOfFinancialPosition Consolidated Statements of Financial Position Statements 2 false false R3.htm 1003 - Statement - Consolidated Statements of Changes in Equity Sheet http://www.Boydgroup.com/role/ConsolidatedStatementsOfChangesInEquity Consolidated Statements of Changes in Equity Statements 3 false false R4.htm 1004 - Statement - Consolidated Statements of Changes in Equity (Parenthetical) Sheet http://www.Boydgroup.com/role/ConsolidatedStatementsOfChangesInEquityParenthetical Consolidated Statements of Changes in Equity (Parenthetical) Statements 4 false false R5.htm 1005 - Statement - Consolidated Statements of Earnings Sheet http://www.Boydgroup.com/role/ConsolidatedStatementsOfEarnings Consolidated Statements of Earnings Statements 5 false false R6.htm 1006 - Statement - Consolidated Statements of Comprehensive Earnings Sheet http://www.Boydgroup.com/role/ConsolidatedStatementsOfComprehensiveEarnings Consolidated Statements of Comprehensive Earnings Statements 6 false false R7.htm 1007 - Statement - Consolidated Statements of Comprehensive Earnings (Parenthetical) Sheet http://www.Boydgroup.com/role/ConsolidatedStatementsOfComprehensiveEarningsParenthetical Consolidated Statements of Comprehensive Earnings (Parenthetical) Statements 7 false false R8.htm 1008 - Statement - Consolidated Statements of Cash Flows Sheet http://www.Boydgroup.com/role/ConsolidatedStatementsOfCashFlows Consolidated Statements of Cash Flows Statements 8 false false R9.htm 1009 - Disclosure - General Information Sheet http://www.Boydgroup.com/role/GeneralInformation General Information Notes 9 false false R10.htm 1010 - Disclosure - Material Accounting Policies Sheet http://www.Boydgroup.com/role/MaterialAccountingPolicies Material Accounting Policies Notes 10 false false R11.htm 1011 - Disclosure - Critical Accounting Estimates And Judgments Sheet http://www.Boydgroup.com/role/CriticalAccountingEstimatesAndJudgments Critical Accounting Estimates And Judgments Notes 11 false false R12.htm 1012 - Disclosure - Changes In Accounting Policies Sheet http://www.Boydgroup.com/role/ChangesInAccountingPolicies Changes In Accounting Policies Notes 12 false false R13.htm 1013 - Disclosure - Acquisitions Sheet http://www.Boydgroup.com/role/Acquisitions Acquisitions Notes 13 false false R14.htm 1014 - Disclosure - Cash Sheet http://www.Boydgroup.com/role/Cash Cash Notes 14 false false R15.htm 1015 - Disclosure - Inventory Sheet http://www.Boydgroup.com/role/Inventory Inventory Notes 15 false false R16.htm 1016 - Disclosure - Property Plant And Equipment Sheet http://www.Boydgroup.com/role/PropertyPlantAndEquipment Property Plant And Equipment Notes 16 false false R17.htm 1017 - Disclosure - Right of Use Assets Sheet http://www.Boydgroup.com/role/RightOfUseAssets Right of Use Assets Notes 17 false false R18.htm 1018 - Disclosure - Income Taxes Sheet http://www.Boydgroup.com/role/IncomeTaxes Income Taxes Notes 18 false false R19.htm 1019 - Disclosure - Intangible Assets Sheet http://www.Boydgroup.com/role/IntangibleAssets Intangible Assets Notes 19 false false R20.htm 1020 - Disclosure - Goodwill Sheet http://www.Boydgroup.com/role/Goodwill Goodwill Notes 20 false false R21.htm 1021 - Disclosure - Other Long Term Assets Sheet http://www.Boydgroup.com/role/OtherLongTermAssets Other Long Term Assets Notes 21 false false R22.htm 1022 - Disclosure - Dividends Sheet http://www.Boydgroup.com/role/Dividends Dividends Notes 22 false false R23.htm 1023 - Disclosure - Long Term Debt Sheet http://www.Boydgroup.com/role/LongTermDebt Long Term Debt Notes 23 false false R24.htm 1024 - Disclosure - Senior Unsecured Notes Notes http://www.Boydgroup.com/role/SeniorUnsecuredNotes Senior Unsecured Notes Notes 24 false false R25.htm 1025 - Disclosure - Lease Liabilities Sheet http://www.Boydgroup.com/role/LeaseLiabilities Lease Liabilities Notes 25 false false R26.htm 1026 - Disclosure - Unearned Rebates Sheet http://www.Boydgroup.com/role/UnearnedRebates Unearned Rebates Notes 26 false false R27.htm 1027 - Disclosure - Financial Instruments Sheet http://www.Boydgroup.com/role/FinancialInstruments Financial Instruments Notes 27 false false R28.htm 1028 - Disclosure - Capital Sheet http://www.Boydgroup.com/role/Capital Capital Notes 28 false false R29.htm 1029 - Disclosure - Contributed Surplus Sheet http://www.Boydgroup.com/role/ContributedSurplus Contributed Surplus Notes 29 false false R30.htm 1030 - Disclosure - Capital Structure Sheet http://www.Boydgroup.com/role/CapitalStructure Capital Structure Notes 30 false false R31.htm 1031 - Disclosure - Related Party Transactions Sheet http://www.Boydgroup.com/role/RelatedPartyTransactions Related Party Transactions Notes 31 false false R32.htm 1032 - Disclosure - Segmented Reporting Sheet http://www.Boydgroup.com/role/SegmentedReporting Segmented Reporting Notes 32 false false R33.htm 1033 - Disclosure - Compensation of Key Management Sheet http://www.Boydgroup.com/role/CompensationOfKeyManagement Compensation of Key Management Notes 33 false false R34.htm 1034 - Disclosure - Share-based Compensation Sheet http://www.Boydgroup.com/role/ShareBasedCompensation Share-based Compensation Notes 34 false false R35.htm 1035 - Disclosure - Employee Expenses Sheet http://www.Boydgroup.com/role/EmployeeExpenses Employee Expenses Notes 35 false false R36.htm 1036 - Disclosure - Defined Contribution Pension Plans Sheet http://www.Boydgroup.com/role/DefinedContributionPensionPlans Defined Contribution Pension Plans Notes 36 false false R37.htm 1037 - Disclosure - Earnings Per Share Sheet http://www.Boydgroup.com/role/EarningsPerShare Earnings Per Share Notes 37 false false R38.htm 1038 - Disclosure - Stock Option Plan Sheet http://www.Boydgroup.com/role/StockOptionPlan Stock Option Plan Notes 38 false false R39.htm 1039 - Disclosure - Changes In Non-Cash Operating Working Capital Items Sheet http://www.Boydgroup.com/role/ChangesInNonCashOperatingWorkingCapitalItems Changes In Non-Cash Operating Working Capital Items Notes 39 false false R40.htm 1040 - Disclosure - Subsequent Events Sheet http://www.Boydgroup.com/role/SubsequentEvents Subsequent Events Notes 40 false false R41.htm 1041 - Disclosure - Material Accounting Policies (Policies) Sheet http://www.Boydgroup.com/role/MaterialAccountingPoliciesPolicies Material Accounting Policies (Policies) Policies http://www.Boydgroup.com/role/MaterialAccountingPolicies 41 false false R42.htm 1042 - Disclosure - Acquisitions (Tables) Sheet http://www.Boydgroup.com/role/AcquisitionsTables Acquisitions (Tables) Tables http://www.Boydgroup.com/role/Acquisitions 42 false false R43.htm 1043 - Disclosure - Inventory (Tables) Sheet http://www.Boydgroup.com/role/InventoryTables Inventory (Tables) Tables http://www.Boydgroup.com/role/Inventory 43 false false R44.htm 1044 - Disclosure - Property Plant And Equipment (Tables) Sheet http://www.Boydgroup.com/role/PropertyPlantAndEquipmentTables Property Plant And Equipment (Tables) Tables http://www.Boydgroup.com/role/PropertyPlantAndEquipment 44 false false R45.htm 1045 - Disclosure - Right of Use Assets (Tables) Sheet http://www.Boydgroup.com/role/RightOfUseAssetsTables Right of Use Assets (Tables) Tables http://www.Boydgroup.com/role/RightOfUseAssets 45 false false R46.htm 1046 - Disclosure - Income Taxes (Tables) Sheet http://www.Boydgroup.com/role/IncomeTaxesTables Income Taxes (Tables) Tables http://www.Boydgroup.com/role/IncomeTaxes 46 false false R47.htm 1047 - Disclosure - Intangible Assets (Tables) Sheet http://www.Boydgroup.com/role/IntangibleAssetsTables Intangible Assets (Tables) Tables http://www.Boydgroup.com/role/IntangibleAssets 47 false false R48.htm 1048 - Disclosure - Goodwill (Tables) Sheet http://www.Boydgroup.com/role/GoodwillTables Goodwill (Tables) Tables http://www.Boydgroup.com/role/Goodwill 48 false false R49.htm 1049 - Disclosure - Dividends (Tables) Sheet http://www.Boydgroup.com/role/DividendsTables Dividends (Tables) Tables http://www.Boydgroup.com/role/Dividends 49 false false R50.htm 1050 - Disclosure - Long Term Debt (Tables) Sheet http://www.Boydgroup.com/role/LongTermDebtTables Long Term Debt (Tables) Tables http://www.Boydgroup.com/role/LongTermDebt 50 false false R51.htm 1051 - Disclosure - Senior Unsecured Notes (Tables) Notes http://www.Boydgroup.com/role/SeniorUnsecuredNotesTables Senior Unsecured Notes (Tables) Tables http://www.Boydgroup.com/role/SeniorUnsecuredNotes 51 false false R52.htm 1052 - Disclosure - Lease Liabilities (Tables) Sheet http://www.Boydgroup.com/role/LeaseLiabilitiesTables Lease Liabilities (Tables) Tables http://www.Boydgroup.com/role/LeaseLiabilities 52 false false R53.htm 1053 - Disclosure - Financial Instruments (Tables) Sheet http://www.Boydgroup.com/role/FinancialInstrumentsTables Financial Instruments (Tables) Tables http://www.Boydgroup.com/role/FinancialInstruments 53 false false R54.htm 1054 - Disclosure - Segmented Reporting (Tables) Sheet http://www.Boydgroup.com/role/SegmentedReportingTables Segmented Reporting (Tables) Tables http://www.Boydgroup.com/role/SegmentedReporting 54 false false R55.htm 1055 - Disclosure - Compensation of Key Management (Tables) Sheet http://www.Boydgroup.com/role/CompensationOfKeyManagementTables Compensation of Key Management (Tables) Tables http://www.Boydgroup.com/role/CompensationOfKeyManagement 55 false false R56.htm 1056 - Disclosure - Employee Expenses (Tables) Sheet http://www.Boydgroup.com/role/EmployeeExpensesTables Employee Expenses (Tables) Tables http://www.Boydgroup.com/role/EmployeeExpenses 56 false false R57.htm 1057 - Disclosure - Earnings Per Share (Tables) Sheet http://www.Boydgroup.com/role/EarningsPerShareTables Earnings Per Share (Tables) Tables http://www.Boydgroup.com/role/EarningsPerShare 57 false false R58.htm 1058 - Disclosure - Stock Option Plan (Tables) Sheet http://www.Boydgroup.com/role/StockOptionPlanTables Stock Option Plan (Tables) Tables http://www.Boydgroup.com/role/StockOptionPlan 58 false false R59.htm 1059 - Disclosure - Changes In Non-Cash Operating Working Capital Items (Tables) Sheet http://www.Boydgroup.com/role/ChangesInNonCashOperatingWorkingCapitalItemsTables Changes In Non-Cash Operating Working Capital Items (Tables) Tables http://www.Boydgroup.com/role/ChangesInNonCashOperatingWorkingCapitalItems 59 false false R60.htm 1060 - Disclosure - General Information - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/GeneralInformationAdditionalInformationDetail General Information - Additional Information (Detail) Details 60 false false R61.htm 1061 - Disclosure - Material Accounting Policies (Policies) - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/MaterialAccountingPoliciesPoliciesAdditionalInformationDetail Material Accounting Policies (Policies) - Additional Information (Detail) Details http://www.Boydgroup.com/role/MaterialAccountingPoliciesPolicies 61 false false R62.htm 1062 - Disclosure - Acquisitions - Disclosure of Acquisitions Using the Acquisition Method (Detail) Sheet http://www.Boydgroup.com/role/AcquisitionsDisclosureOfAcquisitionsUsingTheAcquisitionMethodDetail Acquisitions - Disclosure of Acquisitions Using the Acquisition Method (Detail) Details 62 false false R63.htm 1063 - Disclosure - Acquisitions - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/AcquisitionsAdditionalInformationDetail Acquisitions - Additional Information (Detail) Details 63 false false R64.htm 1064 - Disclosure - Cash - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/CashAdditionalInformationDetail Cash - Additional Information (Detail) Details 64 false false R65.htm 1065 - Disclosure - Inventory - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/InventoryAdditionalInformationDetail Inventory - Additional Information (Detail) Details 65 false false R66.htm 1066 - Disclosure - Inventory - Disclosure of Current Inventories (Detail) Sheet http://www.Boydgroup.com/role/InventoryDisclosureOfCurrentInventoriesDetail Inventory - Disclosure of Current Inventories (Detail) Details 66 false false R67.htm 1067 - Disclosure - Property Plant And Equipment - Disclosure of Detailed Information About Property Plant And Equipment (Detail) Sheet http://www.Boydgroup.com/role/PropertyPlantAndEquipmentDisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentDetail Property Plant And Equipment - Disclosure of Detailed Information About Property Plant And Equipment (Detail) Details 67 false false R68.htm 1068 - Disclosure - Property Plant And Equipment - Disclosure of Detailed Information About Property Plant And Equipment (Parenthetical) (Detail) Sheet http://www.Boydgroup.com/role/PropertyPlantAndEquipmentDisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentParentheticalDetail Property Plant And Equipment - Disclosure of Detailed Information About Property Plant And Equipment (Parenthetical) (Detail) Details 68 false false R69.htm 1069 - Disclosure - Right of Use Assets - Disclosure of Quantitative Information About Right-of-Use Assets (Detail) Sheet http://www.Boydgroup.com/role/RightOfUseAssetsDisclosureOfQuantitativeInformationAboutRightOfUseAssetsDetail Right of Use Assets - Disclosure of Quantitative Information About Right-of-Use Assets (Detail) Details 69 false false R70.htm 1070 - Disclosure - Right of Use Assets - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/RightOfUseAssetsAdditionalInformationDetail Right of Use Assets - Additional Information (Detail) Details 70 false false R71.htm 1071 - Disclosure - Income Taxes - Disclosure of Reconciliation Between Income Tax Expense And The Accounting Earnings (Detail) Sheet http://www.Boydgroup.com/role/IncomeTaxesDisclosureOfReconciliationBetweenIncomeTaxExpenseAndTheAccountingEarningsDetail Income Taxes - Disclosure of Reconciliation Between Income Tax Expense And The Accounting Earnings (Detail) Details 71 false false R72.htm 1072 - Disclosure - Income Taxes - Disclosure of Deferred Income Taxes Assets (Detail) Sheet http://www.Boydgroup.com/role/IncomeTaxesDisclosureOfDeferredIncomeTaxesAssetsDetail Income Taxes - Disclosure of Deferred Income Taxes Assets (Detail) Details 72 false false R73.htm 1073 - Disclosure - Income Taxes - Disclosure of Deferred Income Taxes Liabilities (Detail) Sheet http://www.Boydgroup.com/role/IncomeTaxesDisclosureOfDeferredIncomeTaxesLiabilitiesDetail Income Taxes - Disclosure of Deferred Income Taxes Liabilities (Detail) Details 73 false false R74.htm 1074 - Disclosure - Income Taxes - Disclosure of Changes In Deferred Tax Liability Asset (Detail) Sheet http://www.Boydgroup.com/role/IncomeTaxesDisclosureOfChangesInDeferredTaxLiabilityAssetDetail Income Taxes - Disclosure of Changes In Deferred Tax Liability Asset (Detail) Details 74 false false R75.htm 1075 - Disclosure - Income Taxes - Disclosure of Unused Loss Carry Forwards (Detail) Sheet http://www.Boydgroup.com/role/IncomeTaxesDisclosureOfUnusedLossCarryForwardsDetail Income Taxes - Disclosure of Unused Loss Carry Forwards (Detail) Details 75 false false R76.htm 1076 - Disclosure - Income Taxes - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/IncomeTaxesAdditionalInformationDetail Income Taxes - Additional Information (Detail) Details 76 false false R77.htm 1077 - Disclosure - Intangible Assets - Disclosure of Detailed Information About Intangible Assets (Detail) Sheet http://www.Boydgroup.com/role/IntangibleAssetsDisclosureOfDetailedInformationAboutIntangibleAssetsDetail Intangible Assets - Disclosure of Detailed Information About Intangible Assets (Detail) Details 77 false false R78.htm 1078 - Disclosure - Goodwill - Disclosure of Reconciliation of Changes in Goodwill (Detail) Sheet http://www.Boydgroup.com/role/GoodwillDisclosureOfReconciliationOfChangesInGoodwillDetail Goodwill - Disclosure of Reconciliation of Changes in Goodwill (Detail) Details 78 false false R79.htm 1079 - Disclosure - Goodwill - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/GoodwillAdditionalInformationDetail Goodwill - Additional Information (Detail) Details 79 false false R80.htm 1080 - Disclosure - Other Long Term Assets - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/OtherLongTermAssetsAdditionalInformationDetail Other Long Term Assets - Additional Information (Detail) Details 80 false false R81.htm 1081 - Disclosure - Dividends - Summary of Dividends Payable (Detail) Sheet http://www.Boydgroup.com/role/DividendsSummaryOfDividendsPayableDetail Dividends - Summary of Dividends Payable (Detail) Details 81 false false R82.htm 1082 - Disclosure - Dividends - Summary of Dividends Declared and Paid (Detail) Sheet http://www.Boydgroup.com/role/DividendsSummaryOfDividendsDeclaredAndPaidDetail Dividends - Summary of Dividends Declared and Paid (Detail) Details 82 false false R83.htm 1083 - Disclosure - Dividends - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/DividendsAdditionalInformationDetail Dividends - Additional Information (Detail) Details 83 false false R84.htm 1084 - Disclosure - Long Term Debt - Summary of Long Term Debt (Detail) Sheet http://www.Boydgroup.com/role/LongTermDebtSummaryOfLongTermDebtDetail Long Term Debt - Summary of Long Term Debt (Detail) Details 84 false false R85.htm 1085 - Disclosure - Long Term Debt - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/LongTermDebtAdditionalInformationDetail Long Term Debt - Additional Information (Detail) Details 85 false false R86.htm 1086 - Disclosure - Senior Unsecured Notes - Additional Information (Detail) Notes http://www.Boydgroup.com/role/SeniorUnsecuredNotesAdditionalInformationDetail Senior Unsecured Notes - Additional Information (Detail) Details 86 false false R87.htm 1087 - Disclosure - Senior Unsecured Notes - Schedule of Detailed Information About Senior Unsecured Notes (Detail) Notes http://www.Boydgroup.com/role/SeniorUnsecuredNotesScheduleOfDetailedInformationAboutSeniorUnsecuredNotesDetail Senior Unsecured Notes - Schedule of Detailed Information About Senior Unsecured Notes (Detail) Details 87 false false R88.htm 1088 - Disclosure - Lease liabilities - Schedule of Continuity of Lease Liabilities (Detail) Sheet http://www.Boydgroup.com/role/LeaseLiabilitiesScheduleOfContinuityOfLeaseLiabilitiesDetail Lease liabilities - Schedule of Continuity of Lease Liabilities (Detail) Details 88 false false R89.htm 1089 - Disclosure - Lease Liabilities - Schedule of Consolidated Statement of Earnings (Detail) Sheet http://www.Boydgroup.com/role/LeaseLiabilitiesScheduleOfConsolidatedStatementOfEarningsDetail Lease Liabilities - Schedule of Consolidated Statement of Earnings (Detail) Details 89 false false R90.htm 1090 - Disclosure - Lease Liabilities - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/LeaseLiabilitiesAdditionalInformationDetail Lease Liabilities - Additional Information (Detail) Details 90 false false R91.htm 1091 - Disclosure - Unearned rebates - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/UnearnedRebatesAdditionalInformationDetail Unearned rebates - Additional Information (Detail) Details 91 false false R92.htm 1092 - Disclosure - Financial Instruments - Summary of Carrying Value and Estimated Fair Value of Financial Instruments (Detail) Sheet http://www.Boydgroup.com/role/FinancialInstrumentsSummaryOfCarryingValueAndEstimatedFairValueOfFinancialInstrumentsDetail Financial Instruments - Summary of Carrying Value and Estimated Fair Value of Financial Instruments (Detail) Details 92 false false R93.htm 1093 - Disclosure - Financial Instruments - Summary of Fair Value Adjustments (Detail) Sheet http://www.Boydgroup.com/role/FinancialInstrumentsSummaryOfFairValueAdjustmentsDetail Financial Instruments - Summary of Fair Value Adjustments (Detail) Details 93 false false R94.htm 1094 - Disclosure - Financial Instruments - Summary of Promissory Notes (Detail) Notes http://www.Boydgroup.com/role/FinancialInstrumentsSummaryOfPromissoryNotesDetail Financial Instruments - Summary of Promissory Notes (Detail) Details 94 false false R95.htm 1095 - Disclosure - Financial Instruments - Summary of Aging of Accounts Receivable (Detail) Sheet http://www.Boydgroup.com/role/FinancialInstrumentsSummaryOfAgingOfAccountsReceivableDetail Financial Instruments - Summary of Aging of Accounts Receivable (Detail) Details 95 false false R96.htm 1096 - Disclosure - Financial Instruments - Summary of Allowance For Doubtful Accounts (Detail) Sheet http://www.Boydgroup.com/role/FinancialInstrumentsSummaryOfAllowanceForDoubtfulAccountsDetail Financial Instruments - Summary of Allowance For Doubtful Accounts (Detail) Details 96 false false R97.htm 1097 - Disclosure - Financial Instruments - Summary of Maturity Analysis For Financial Liabilities (Detail) Sheet http://www.Boydgroup.com/role/FinancialInstrumentsSummaryOfMaturityAnalysisForFinancialLiabilitiesDetail Financial Instruments - Summary of Maturity Analysis For Financial Liabilities (Detail) Details 97 false false R98.htm 1098 - Disclosure - Financial Instruments - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/FinancialInstrumentsAdditionalInformationDetail Financial Instruments - Additional Information (Detail) Details 98 false false R99.htm 1099 - Disclosure - Capital - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/CapitalAdditionalInformationDetail Capital - Additional Information (Detail) Details 99 false false R100.htm 1100 - Disclosure - Contributed Surplus - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/ContributedSurplusAdditionalInformationDetail Contributed Surplus - Additional Information (Detail) Details 100 false false R101.htm 1101 - Disclosure - Capital Structure - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/CapitalStructureAdditionalInformationDetail Capital Structure - Additional Information (Detail) Details 101 false false R102.htm 1102 - Disclosure - Related Party Transactions - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/RelatedPartyTransactionsAdditionalInformationDetail Related Party Transactions - Additional Information (Detail) Details 102 false false R103.htm 1103 - Disclosure - Segmented Reporting - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/SegmentedReportingAdditionalInformationDetail Segmented Reporting - Additional Information (Detail) Details 103 false false R104.htm 1104 - Disclosure - Segmented Reporting - Schedule of Operating Segments (Detail) Sheet http://www.Boydgroup.com/role/SegmentedReportingScheduleOfOperatingSegmentsDetail Segmented Reporting - Schedule of Operating Segments (Detail) Details 104 false false R105.htm 1105 - Disclosure - Compensation of Key Management - Summary of Compensation of Key Management (Detail) Sheet http://www.Boydgroup.com/role/CompensationOfKeyManagementSummaryOfCompensationOfKeyManagementDetail Compensation of Key Management - Summary of Compensation of Key Management (Detail) Details 105 false false R106.htm 1106 - Disclosure - Share-based Compensation - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/ShareBasedCompensationAdditionalInformationDetail Share-based Compensation - Additional Information (Detail) Details 106 false false R107.htm 1107 - Disclosure - Employee Expenses - Summary of Detailed Information of Employee Benefits (Detail) Sheet http://www.Boydgroup.com/role/EmployeeExpensesSummaryOfDetailedInformationOfEmployeeBenefitsDetail Employee Expenses - Summary of Detailed Information of Employee Benefits (Detail) Details 107 false false R108.htm 1108 - Disclosure - Defined Contribution Pension Plans - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/DefinedContributionPensionPlansAdditionalInformationDetail Defined Contribution Pension Plans - Additional Information (Detail) Details 108 false false R109.htm 1109 - Disclosure - Earnings Per Share - Summary of Earnings Per Share (Detail) Sheet http://www.Boydgroup.com/role/EarningsPerShareSummaryOfEarningsPerShareDetail Earnings Per Share - Summary of Earnings Per Share (Detail) Details 109 false false R110.htm 1110 - Disclosure - Stock Option Plan - Summary of Information On The Outstanding Options (Detail) Sheet http://www.Boydgroup.com/role/StockOptionPlanSummaryOfInformationOnTheOutstandingOptionsDetail Stock Option Plan - Summary of Information On The Outstanding Options (Detail) Details 110 false false R111.htm 1111 - Disclosure - Stock Option Plan - Summary of Black- Scholes Option Pricing Model (Detail) Sheet http://www.Boydgroup.com/role/StockOptionPlanSummaryOfBlackScholesOptionPricingModelDetail Stock Option Plan - Summary of Black- Scholes Option Pricing Model (Detail) Details 111 false false R112.htm 1112 - Disclosure - Stock Option Plan - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/StockOptionPlanAdditionalInformationDetail Stock Option Plan - Additional Information (Detail) Details 112 false false R113.htm 1113 - Disclosure - Changes In Non-Cash Operating Working Capital Items - Summary of Changes in Non Cash Operating Working Capital Items (Detail) Sheet http://www.Boydgroup.com/role/ChangesInNonCashOperatingWorkingCapitalItemsSummaryOfChangesInNonCashOperatingWorkingCapitalItemsDetail Changes In Non-Cash Operating Working Capital Items - Summary of Changes in Non Cash Operating Working Capital Items (Detail) Details 113 false false R114.htm 1114 - Disclosure - Subsequent Events - Additional Information (Detail) Sheet http://www.Boydgroup.com/role/SubsequentEventsAdditionalInformationDetail Subsequent Events - Additional Information (Detail) Details 114 false false All Reports Book All Reports bgsi-20251231.xsd d106626d40f.htm d106626dex993.htm g106626dsp11.jpg g106626g0311053441965.jpg http://xbrl.sec.gov/dei/2025 https://xbrl.ifrs.org/taxonomy/2025-03-27/ifrs-full false false