3.26.1 html 224 328 1 false 81 0 false 7 false false R1.htm 0000001 - Document - Cover Sheet http://www.apollostrategicgrowthcapitalii.com/role/Cover Cover Cover 1 false false R2.htm 9952151 - Statement - CONSOLIDATED BALANCE SHEETS Sheet http://www.apollostrategicgrowthcapitalii.com/role/CONSOLIDATEDBALANCESHEETS CONSOLIDATED BALANCE SHEETS Statements 2 false false R3.htm 9952152 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) Sheet http://www.apollostrategicgrowthcapitalii.com/role/CONSOLIDATEDBALANCESHEETSParenthetical CONSOLIDATED BALANCE SHEETS (Parenthetical) Statements 3 false false R4.htm 9952153 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) Sheet http://www.apollostrategicgrowthcapitalii.com/role/CONSOLIDATEDSTATEMENTSOFOPERATIONSUnaudited CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) Statements 4 false false R5.htm 9952154 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) Sheet http://www.apollostrategicgrowthcapitalii.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) Statements 5 false false R6.htm 9952155 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) Sheet http://www.apollostrategicgrowthcapitalii.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) Statements 6 false false R7.htm 9952156 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN TOTAL SHAREHOLDERS??? EQUITY (Unaudited) Sheet http://www.apollostrategicgrowthcapitalii.com/role/CONSOLIDATEDSTATEMENTSOFCHANGESINTOTALSHAREHOLDERSEQUITYUnaudited CONSOLIDATED STATEMENTS OF CHANGES IN TOTAL SHAREHOLDERS??? EQUITY (Unaudited) Statements 7 false false R8.htm 9952157 - Disclosure - Business Description and Basis of Presentation Sheet http://www.apollostrategicgrowthcapitalii.com/role/BusinessDescriptionandBasisofPresentation Business Description and Basis of Presentation Notes 8 false false R9.htm 9952158 - Disclosure - Recently Issued Accounting Pronouncements Sheet http://www.apollostrategicgrowthcapitalii.com/role/RecentlyIssuedAccountingPronouncements Recently Issued Accounting Pronouncements Notes 9 false false R10.htm 9952159 - Disclosure - Business Acquisitions Sheet http://www.apollostrategicgrowthcapitalii.com/role/BusinessAcquisitions Business Acquisitions Notes 10 false false R11.htm 9952160 - Disclosure - Revenue from Contracts with Customers Sheet http://www.apollostrategicgrowthcapitalii.com/role/RevenuefromContractswithCustomers Revenue from Contracts with Customers Notes 11 false false R12.htm 9952161 - Disclosure - Accrued Expenses and Other Current Liabilities Sheet http://www.apollostrategicgrowthcapitalii.com/role/AccruedExpensesandOtherCurrentLiabilities Accrued Expenses and Other Current Liabilities Notes 12 false false R13.htm 9952162 - Disclosure - Restructuring, Exit and Related Charges Sheet http://www.apollostrategicgrowthcapitalii.com/role/RestructuringExitandRelatedCharges Restructuring, Exit and Related Charges Notes 13 false false R14.htm 9952163 - Disclosure - Long-term Debt Sheet http://www.apollostrategicgrowthcapitalii.com/role/LongtermDebt Long-term Debt Notes 14 false false R15.htm 9952164 - Disclosure - Commitments and Contingencies Sheet http://www.apollostrategicgrowthcapitalii.com/role/CommitmentsandContingencies Commitments and Contingencies Notes 15 false false R16.htm 9952165 - Disclosure - Income Taxes Sheet http://www.apollostrategicgrowthcapitalii.com/role/IncomeTaxes Income Taxes Notes 16 false false R17.htm 9952166 - Disclosure - Earnout Shares Sheet http://www.apollostrategicgrowthcapitalii.com/role/EarnoutShares Earnout Shares Notes 17 false false R18.htm 9952167 - Disclosure - Equity-Based Compensation Sheet http://www.apollostrategicgrowthcapitalii.com/role/EquityBasedCompensation Equity-Based Compensation Notes 18 false false R19.htm 9952168 - Disclosure - Shareholders' Equity Sheet http://www.apollostrategicgrowthcapitalii.com/role/ShareholdersEquity Shareholders' Equity Notes 19 false false R20.htm 9952169 - Disclosure - Earnings (Loss) Per Share Sheet http://www.apollostrategicgrowthcapitalii.com/role/EarningsLossPerShare Earnings (Loss) Per Share Notes 20 false false R21.htm 9952170 - Disclosure - Derivatives and Hedging Sheet http://www.apollostrategicgrowthcapitalii.com/role/DerivativesandHedging Derivatives and Hedging Notes 21 false false R22.htm 9952171 - Disclosure - Fair Value Measurements Sheet http://www.apollostrategicgrowthcapitalii.com/role/FairValueMeasurements Fair Value Measurements Notes 22 false false R23.htm 9952172 - Disclosure - Related Party Transactions Sheet http://www.apollostrategicgrowthcapitalii.com/role/RelatedPartyTransactions Related Party Transactions Notes 23 false false R24.htm 9952173 - Disclosure - Segment Information Sheet http://www.apollostrategicgrowthcapitalii.com/role/SegmentInformation Segment Information Notes 24 false false R25.htm 9952174 - Disclosure - Subsequent Events Sheet http://www.apollostrategicgrowthcapitalii.com/role/SubsequentEvents Subsequent Events Notes 25 false false R26.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 26 false false R27.htm 9955511 - Disclosure - Recently Issued Accounting Pronouncements (Policies) Sheet http://www.apollostrategicgrowthcapitalii.com/role/RecentlyIssuedAccountingPronouncementsPolicies Recently Issued Accounting Pronouncements (Policies) Policies http://www.apollostrategicgrowthcapitalii.com/role/RecentlyIssuedAccountingPronouncements 27 false false R28.htm 9955512 - Disclosure - Business Acquisitions (Tables) Sheet http://www.apollostrategicgrowthcapitalii.com/role/BusinessAcquisitionsTables Business Acquisitions (Tables) Tables http://www.apollostrategicgrowthcapitalii.com/role/BusinessAcquisitions 28 false false R29.htm 9955513 - Disclosure - Revenue from Contracts with Customers (Tables) Sheet http://www.apollostrategicgrowthcapitalii.com/role/RevenuefromContractswithCustomersTables Revenue from Contracts with Customers (Tables) Tables http://www.apollostrategicgrowthcapitalii.com/role/RevenuefromContractswithCustomers 29 false false R30.htm 9955514 - Disclosure - Accrued Expenses and Other Current Liabilities (Tables) Sheet http://www.apollostrategicgrowthcapitalii.com/role/AccruedExpensesandOtherCurrentLiabilitiesTables Accrued Expenses and Other Current Liabilities (Tables) Tables http://www.apollostrategicgrowthcapitalii.com/role/AccruedExpensesandOtherCurrentLiabilities 30 false false R31.htm 9955515 - Disclosure - Restructuring, Exit and Related Charges (Tables) Sheet http://www.apollostrategicgrowthcapitalii.com/role/RestructuringExitandRelatedChargesTables Restructuring, Exit and Related Charges (Tables) Tables http://www.apollostrategicgrowthcapitalii.com/role/RestructuringExitandRelatedCharges 31 false false R32.htm 9955516 - Disclosure - Long-term Debt (Tables) Sheet http://www.apollostrategicgrowthcapitalii.com/role/LongtermDebtTables Long-term Debt (Tables) Tables http://www.apollostrategicgrowthcapitalii.com/role/LongtermDebt 32 false false R33.htm 9955517 - Disclosure - Equity-Based Compensation (Tables) Sheet http://www.apollostrategicgrowthcapitalii.com/role/EquityBasedCompensationTables Equity-Based Compensation (Tables) Tables http://www.apollostrategicgrowthcapitalii.com/role/EquityBasedCompensation 33 false false R34.htm 9955518 - Disclosure - Shareholders' Equity (Tables) Sheet http://www.apollostrategicgrowthcapitalii.com/role/ShareholdersEquityTables Shareholders' Equity (Tables) Tables http://www.apollostrategicgrowthcapitalii.com/role/ShareholdersEquity 34 false false R35.htm 9955519 - Disclosure - Earnings (Loss) Per Share (Tables) Sheet http://www.apollostrategicgrowthcapitalii.com/role/EarningsLossPerShareTables Earnings (Loss) Per Share (Tables) Tables http://www.apollostrategicgrowthcapitalii.com/role/EarningsLossPerShare 35 false false R36.htm 9955520 - Disclosure - Derivatives and Hedging (Tables) Sheet http://www.apollostrategicgrowthcapitalii.com/role/DerivativesandHedgingTables Derivatives and Hedging (Tables) Tables http://www.apollostrategicgrowthcapitalii.com/role/DerivativesandHedging 36 false false R37.htm 9955521 - Disclosure - Fair Value Measurements (Tables) Sheet http://www.apollostrategicgrowthcapitalii.com/role/FairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://www.apollostrategicgrowthcapitalii.com/role/FairValueMeasurements 37 false false R38.htm 9955522 - Disclosure - Related Party Transactions (Tables) Sheet http://www.apollostrategicgrowthcapitalii.com/role/RelatedPartyTransactionsTables Related Party Transactions (Tables) Tables http://www.apollostrategicgrowthcapitalii.com/role/RelatedPartyTransactions 38 false false R39.htm 9955523 - Disclosure - Segment Information (Tables) Sheet http://www.apollostrategicgrowthcapitalii.com/role/SegmentInformationTables Segment Information (Tables) Tables http://www.apollostrategicgrowthcapitalii.com/role/SegmentInformation 39 false false R40.htm 9955524 - Disclosure - Business Acquisitions - Narrative (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/BusinessAcquisitionsNarrativeDetails Business Acquisitions - Narrative (Details) Details 40 false false R41.htm 9955525 - Disclosure - Business Acquisitions - Unaudited Pro Forma Revenue and Net Income (Loss) (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/BusinessAcquisitionsUnauditedProFormaRevenueandNetIncomeLossDetails Business Acquisitions - Unaudited Pro Forma Revenue and Net Income (Loss) (Details) Details 41 false false R42.htm 9955526 - Disclosure - Revenue from Contracts with Customers - Disaggregated Revenue by Nature of Service (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/RevenuefromContractswithCustomersDisaggregatedRevenuebyNatureofServiceDetails Revenue from Contracts with Customers - Disaggregated Revenue by Nature of Service (Details) Details 42 false false R43.htm 9955527 - Disclosure - Revenue from Contracts with Customers - Narrative (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/RevenuefromContractswithCustomersNarrativeDetails Revenue from Contracts with Customers - Narrative (Details) Details 43 false false R44.htm 9955528 - Disclosure - Revenue from Contracts with Customers - Opening and Closing Contract Balances (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/RevenuefromContractswithCustomersOpeningandClosingContractBalancesDetails Revenue from Contracts with Customers - Opening and Closing Contract Balances (Details) Details 44 false false R45.htm 9955529 - Disclosure - Accrued Expenses and Other Current Liabilities (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/AccruedExpensesandOtherCurrentLiabilitiesDetails Accrued Expenses and Other Current Liabilities (Details) Details http://www.apollostrategicgrowthcapitalii.com/role/AccruedExpensesandOtherCurrentLiabilitiesTables 45 false false R46.htm 9955530 - Disclosure - Restructuring, Exit and Related Charges - Accrued Restructuring and Related Costs (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/RestructuringExitandRelatedChargesAccruedRestructuringandRelatedCostsDetails Restructuring, Exit and Related Charges - Accrued Restructuring and Related Costs (Details) Details 46 false false R47.htm 9955531 - Disclosure - Restructuring, Exit and Related Charges - Narrative (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/RestructuringExitandRelatedChargesNarrativeDetails Restructuring, Exit and Related Charges - Narrative (Details) Details 47 false false R48.htm 9955532 - Disclosure - Long-term Debt - Outstanding Long-term Debt (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/LongtermDebtOutstandingLongtermDebtDetails Long-term Debt - Outstanding Long-term Debt (Details) Details 48 false false R49.htm 9955533 - Disclosure - Long-term Debt - Narrative (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/LongtermDebtNarrativeDetails Long-term Debt - Narrative (Details) Details 49 false false R50.htm 9955534 - Disclosure - Commitments and Contingencies (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/CommitmentsandContingenciesDetails Commitments and Contingencies (Details) Details http://www.apollostrategicgrowthcapitalii.com/role/CommitmentsandContingencies 50 false false R51.htm 9955535 - Disclosure - Income Taxes (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/IncomeTaxesDetails Income Taxes (Details) Details http://www.apollostrategicgrowthcapitalii.com/role/IncomeTaxes 51 false false R52.htm 9955536 - Disclosure - Earnout Shares (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/EarnoutSharesDetails Earnout Shares (Details) Details http://www.apollostrategicgrowthcapitalii.com/role/EarnoutShares 52 false false R53.htm 9955537 - Disclosure - Equity-Based Compensation - Company's Stock Options (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/EquityBasedCompensationCompanysStockOptionsDetails Equity-Based Compensation - Company's Stock Options (Details) Details 53 false false R54.htm 9955538 - Disclosure - Equity-Based Compensation - Narrative (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/EquityBasedCompensationNarrativeDetails Equity-Based Compensation - Narrative (Details) Details 54 false false R55.htm 9955539 - Disclosure - Equity-Based Compensation - Company's RSU Activity (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/EquityBasedCompensationCompanysRSUActivityDetails Equity-Based Compensation - Company's RSU Activity (Details) Details 55 false false R56.htm 9955540 - Disclosure - Equity-Based Compensation - Equity-based Compensation Expense (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/EquityBasedCompensationEquitybasedCompensationExpenseDetails Equity-Based Compensation - Equity-based Compensation Expense (Details) Details 56 false false R57.htm 9955541 - Disclosure - Shareholders' Equity - Changes in Accumulated Other Comprehensive Loss, Net of Tax (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/ShareholdersEquityChangesinAccumulatedOtherComprehensiveLossNetofTaxDetails Shareholders' Equity - Changes in Accumulated Other Comprehensive Loss, Net of Tax (Details) Details 57 false false R58.htm 9955542 - Disclosure - Shareholders' Equity - Narrative (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/ShareholdersEquityNarrativeDetails Shareholders' Equity - Narrative (Details) Details 58 false false R59.htm 9955543 - Disclosure - Earnings (Loss) Per Share - Narrative (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/EarningsLossPerShareNarrativeDetails Earnings (Loss) Per Share - Narrative (Details) Details http://www.apollostrategicgrowthcapitalii.com/role/EarningsLossPerShareTables 59 false false R60.htm 9955544 - Disclosure - Earnings (Loss) Per Share- Reconciliation of Basic and Diluted Earnings (Loss) Per Share (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/EarningsLossPerShareReconciliationofBasicandDilutedEarningsLossPerShareDetails Earnings (Loss) Per Share- Reconciliation of Basic and Diluted Earnings (Loss) Per Share (Details) Details http://www.apollostrategicgrowthcapitalii.com/role/EarningsLossPerShareTables 60 false false R61.htm 9955545 - Disclosure - Derivatives and Hedging - Interest Rate Swap (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/DerivativesandHedgingInterestRateSwapDetails Derivatives and Hedging - Interest Rate Swap (Details) Details 61 false false R62.htm 9955546 - Disclosure - Derivatives and Hedging - Narrative (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/DerivativesandHedgingNarrativeDetails Derivatives and Hedging - Narrative (Details) Details 62 false false R63.htm 9955547 - Disclosure - Derivatives and Hedging - Earnout Shares (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/DerivativesandHedgingEarnoutSharesDetails Derivatives and Hedging - Earnout Shares (Details) Details 63 false false R64.htm 9955548 - Disclosure - Derivatives and Hedging - Impact of Changes in Fair Values of Derivatives (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/DerivativesandHedgingImpactofChangesinFairValuesofDerivativesDetails Derivatives and Hedging - Impact of Changes in Fair Values of Derivatives (Details) Details 64 false false R65.htm 9955549 - Disclosure - Fair Value Measurements - Schedule of Gross Carrying Value and Fair Value of Company's Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/FairValueMeasurementsScheduleofGrossCarryingValueandFairValueofCompanysAssetsandLiabilitiesMeasuredatFairValueonRecurringBasisDetails Fair Value Measurements - Schedule of Gross Carrying Value and Fair Value of Company's Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) Details 65 false false R66.htm 9955550 - Disclosure - Fair Value Measurements - Schedule of Assumptions Used for Initial Measurement of Equity Instruments (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/FairValueMeasurementsScheduleofAssumptionsUsedforInitialMeasurementofEquityInstrumentsDetails Fair Value Measurements - Schedule of Assumptions Used for Initial Measurement of Equity Instruments (Details) Details 66 false false R67.htm 9955551 - Disclosure - Fair Value Measurements - Schedule of Changes in Level 3 Financial Liabilities Measured at Fair Value (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/FairValueMeasurementsScheduleofChangesinLevel3FinancialLiabilitiesMeasuredatFairValueDetails Fair Value Measurements - Schedule of Changes in Level 3 Financial Liabilities Measured at Fair Value (Details) Details 67 false false R68.htm 9955552 - Disclosure - Fair Value Measurements - Schedule of Fair Values of the Company's Outstanding Senior Secured Term Loans (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/FairValueMeasurementsScheduleofFairValuesoftheCompanysOutstandingSeniorSecuredTermLoansDetails Fair Value Measurements - Schedule of Fair Values of the Company's Outstanding Senior Secured Term Loans (Details) Details 68 false false R69.htm 9955553 - Disclosure - Related Party Transactions - Schedule of Related Party Transactions (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/RelatedPartyTransactionsScheduleofRelatedPartyTransactionsDetails Related Party Transactions - Schedule of Related Party Transactions (Details) Details 69 false false R70.htm 9955554 - Disclosure - Related Party Transactions - Narrative (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/RelatedPartyTransactionsNarrativeDetails Related Party Transactions - Narrative (Details) Details 70 false false R71.htm 9955555 - Disclosure - Segment Information - Narrative (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/SegmentInformationNarrativeDetails Segment Information - Narrative (Details) Details 71 false false R72.htm 9955556 - Disclosure - Segment Information - Segment Profit or Loss, and Reconciliation of Segment Profit/(Loss) to Net Income/(Loss) (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/SegmentInformationSegmentProfitorLossandReconciliationofSegmentProfitLosstoNetIncomeLossDetails Segment Information - Segment Profit or Loss, and Reconciliation of Segment Profit/(Loss) to Net Income/(Loss) (Details) Details 72 false false R73.htm 9955557 - Disclosure - Subsequent Events (Details) Sheet http://www.apollostrategicgrowthcapitalii.com/role/SubsequentEventsDetails Subsequent Events (Details) Details http://www.apollostrategicgrowthcapitalii.com/role/SubsequentEvents 73 false false All Reports Book All Reports gbtg-20260331.htm gbtg-20260331.xsd gbtg-20260331_cal.xml gbtg-20260331_def.xml gbtg-20260331_lab.xml gbtg-20260331_pre.xml http://fasb.org/us-gaap/2025 http://xbrl.sec.gov/dei/2025 http://xbrl.sec.gov/ecd/2025 true true