3.22.0.1 html 473 581 1 true 137 0 false 9 false false R1.htm 100000 - Document - Document and Entity Information Sheet http://onespaworld.com/20211231/taxonomy/role/DocumentDocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 100010 - Statement - CONSOLIDATED BALANCE SHEETS Sheet http://onespaworld.com/20211231/taxonomy/role/StatementCONSOLIDATEDBALANCESHEETS CONSOLIDATED BALANCE SHEETS Statements 2 false false R3.htm 100020 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) Sheet http://onespaworld.com/20211231/taxonomy/role/StatementCONSOLIDATEDBALANCESHEETSParenthetical CONSOLIDATED BALANCE SHEETS (Parenthetical) Statements 3 false false R4.htm 100030 - Statement - CONSOLIDATED AND COMBINED STATEMENTS OF OPERATIONS Sheet http://onespaworld.com/20211231/taxonomy/role/StatementCONSOLIDATEDANDCOMBINEDSTATEMENTSOFOPERATIONS CONSOLIDATED AND COMBINED STATEMENTS OF OPERATIONS Statements 4 false false R5.htm 100040 - Statement - CONSOLIDATED AND COMBINED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME Sheet http://onespaworld.com/20211231/taxonomy/role/StatementCONSOLIDATEDANDCOMBINEDSTATEMENTSOFCOMPREHENSIVELOSSINCOME CONSOLIDATED AND COMBINED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME Statements 5 false false R6.htm 100050 - Statement - CONSOLIDATED AND COMBINED STATEMENTS OF EQUITY (DEFICIT) Sheet http://onespaworld.com/20211231/taxonomy/role/StatementCONSOLIDATEDANDCOMBINEDSTATEMENTSOFEQUITYDEFICIT CONSOLIDATED AND COMBINED STATEMENTS OF EQUITY (DEFICIT) Statements 6 false false R7.htm 100060 - Statement - CONSOLIDATED AND COMBINED STATEMENTS OF CASH FLOWS Sheet http://onespaworld.com/20211231/taxonomy/role/StatementCONSOLIDATEDANDCOMBINEDSTATEMENTSOFCASHFLOWS CONSOLIDATED AND COMBINED STATEMENTS OF CASH FLOWS Statements 7 false false R8.htm 100070 - Disclosure - Organization Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureOrganization Organization Notes 8 false false R9.htm 100080 - Disclosure - Summary of Significant Accounting Policies Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 9 false false R10.htm 100090 - Disclosure - Business Combination Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureBusinessCombination Business Combination Notes 10 false false R11.htm 100100 - Disclosure - Property and Equipment, Net Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosurePropertyAndEquipmentNet Property and Equipment, Net Notes 11 false false R12.htm 100110 - Disclosure - Goodwill and Intangible Assets Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureGoodwillAndIntangibleAssets Goodwill and Intangible Assets Notes 12 false false R13.htm 100120 - Disclosure - Accrued Expenses Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureAccruedExpenses Accrued Expenses Notes 13 false false R14.htm 100130 - Disclosure - Long-term Debt Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureLongTermDebt Long-term Debt Notes 14 false false R15.htm 100140 - Disclosure - Warrant Liabilities Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureWarrantLiabilities Warrant Liabilities Notes 15 false false R16.htm 100150 - Disclosure - Equity Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureEquity Equity Notes 16 false false R17.htm 100160 - Disclosure - Stock-Based Compensation Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureStockBasedCompensation Stock-Based Compensation Notes 17 false false R18.htm 100170 - Disclosure - Noncontrolling Interest Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureNoncontrollingInterest Noncontrolling Interest Notes 18 false false R19.htm 100180 - Disclosure - Revenue Recognition Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureRevenueRecognition Revenue Recognition Notes 19 false false R20.htm 100190 - Disclosure - Income Taxes Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureIncomeTaxes Income Taxes Notes 20 false false R21.htm 100200 - Disclosure - Commitment and Contingencies Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureCommitmentAndContingencies Commitment and Contingencies Notes 21 false false R22.htm 100210 - Disclosure - Changes in Accumulated Other Comprehensive Income (Loss) by Component Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureChangesInAccumulatedOtherComprehensiveIncomeLossByComponent Changes in Accumulated Other Comprehensive Income (Loss) by Component Notes 22 false false R23.htm 100220 - Disclosure - Fair Value Measurements and Derivatives (as restated) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureFairValueMeasurementsAndDerivativesAsRestated Fair Value Measurements and Derivatives (as restated) Notes 23 false false R24.htm 100230 - Disclosure - Transactions with Related Parties Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureTransactionsWithRelatedParties Transactions with Related Parties Notes 24 false false R25.htm 100240 - Disclosure - Profit Sharing Plans Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureProfitSharingPlans Profit Sharing Plans Notes 25 false false R26.htm 100250 - Disclosure - Segment and Geographic Information Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureSegmentAndGeographicInformation Segment and Geographic Information Notes 26 false false R27.htm 100260 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://onespaworld.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies 27 false false R28.htm 100270 - Disclosure - Summary of Significant Accounting Policies (Tables) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesTables Summary of Significant Accounting Policies (Tables) Tables http://onespaworld.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies 28 false false R29.htm 100280 - Disclosure - Business Combination (Tables) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureBusinessCombinationTables Business Combination (Tables) Tables http://onespaworld.com/20211231/taxonomy/role/DisclosureBusinessCombination 29 false false R30.htm 100290 - Disclosure - Property and Equipment, Net (Tables) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosurePropertyAndEquipmentNetTables Property and Equipment, Net (Tables) Tables http://onespaworld.com/20211231/taxonomy/role/DisclosurePropertyAndEquipmentNet 30 false false R31.htm 100300 - Disclosure - Goodwill and Intangible Assets (Tables) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsTables Goodwill and Intangible Assets (Tables) Tables http://onespaworld.com/20211231/taxonomy/role/DisclosureGoodwillAndIntangibleAssets 31 false false R32.htm 100310 - Disclosure - Accrued Expenses (Tables) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureAccruedExpensesTables Accrued Expenses (Tables) Tables http://onespaworld.com/20211231/taxonomy/role/DisclosureAccruedExpenses 32 false false R33.htm 100320 - Disclosure - Long-term Debt (Tables) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureLongTermDebtTables Long-term Debt (Tables) Tables http://onespaworld.com/20211231/taxonomy/role/DisclosureLongTermDebt 33 false false R34.htm 100330 - Disclosure - Stock-Based Compensation (Tables) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureStockBasedCompensationTables Stock-Based Compensation (Tables) Tables http://onespaworld.com/20211231/taxonomy/role/DisclosureStockBasedCompensation 34 false false R35.htm 100340 - Disclosure - Noncontrolling Interest (Tables) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureNoncontrollingInterestTables Noncontrolling Interest (Tables) Tables http://onespaworld.com/20211231/taxonomy/role/DisclosureNoncontrollingInterest 35 false false R36.htm 100350 - Disclosure - Revenue Recognition (Tables) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureRevenueRecognitionTables Revenue Recognition (Tables) Tables http://onespaworld.com/20211231/taxonomy/role/DisclosureRevenueRecognition 36 false false R37.htm 100360 - Disclosure - Income Taxes (Tables) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureIncomeTaxesTables Income Taxes (Tables) Tables http://onespaworld.com/20211231/taxonomy/role/DisclosureIncomeTaxes 37 false false R38.htm 100370 - Disclosure - Commitment and Contingencies (Tables) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureCommitmentAndContingenciesTables Commitment and Contingencies (Tables) Tables http://onespaworld.com/20211231/taxonomy/role/DisclosureCommitmentAndContingencies 38 false false R39.htm 100380 - Disclosure - Changes in Accumulated Other Comprehensive Income (Loss) by Component (Tables) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureChangesInAccumulatedOtherComprehensiveIncomeLossByComponentTables Changes in Accumulated Other Comprehensive Income (Loss) by Component (Tables) Tables http://onespaworld.com/20211231/taxonomy/role/DisclosureChangesInAccumulatedOtherComprehensiveIncomeLossByComponent 39 false false R40.htm 100390 - Disclosure - Fair Value Measurements and Derivatives (as restated) (Tables) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureFairValueMeasurementsAndDerivativesAsRestatedTables Fair Value Measurements and Derivatives (as restated) (Tables) Tables http://onespaworld.com/20211231/taxonomy/role/DisclosureFairValueMeasurementsAndDerivativesAsRestated 40 false false R41.htm 100400 - Disclosure - Transactions with Related Parties (Tables) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureTransactionsWithRelatedPartiesTables Transactions with Related Parties (Tables) Tables http://onespaworld.com/20211231/taxonomy/role/DisclosureTransactionsWithRelatedParties 41 false false R42.htm 100410 - Disclosure - Segment and Geographic Information (Tables) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureSegmentAndGeographicInformationTables Segment and Geographic Information (Tables) Tables http://onespaworld.com/20211231/taxonomy/role/DisclosureSegmentAndGeographicInformation 42 false false R43.htm 100420 - Disclosure - Organization - Additional Information (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureOrganizationAdditionalInformationDetails Organization - Additional Information (Details) Details 43 false false R44.htm 100430 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails Summary of Significant Accounting Policies - Additional Information (Details) Details 44 false false R45.htm 100440 - Disclosure - Summary of Significant Accounting Policies - Summary of Reconciles Cash, Cash Equivalents and Restricted Cash (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfReconcilesCashCashEquivalentsAndRestrictedCashDetails Summary of Significant Accounting Policies - Summary of Reconciles Cash, Cash Equivalents and Restricted Cash (Details) Details 45 false false R46.htm 100450 - Disclosure - Summary of Significant Accounting Policies - Summary of Rollforward of Inventory Reserve (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfRollforwardOfInventoryReserveDetails Summary of Significant Accounting Policies - Summary of Rollforward of Inventory Reserve (Details) Details 46 false false R47.htm 100460 - Disclosure - Summary of Significant Accounting Policies - Summary of Loss per Basic and Diluted Share Calculation (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfLossPerBasicAndDilutedShareCalculationDetails Summary of Significant Accounting Policies - Summary of Loss per Basic and Diluted Share Calculation (Details) Details 47 false false R48.htm 100470 - Disclosure - Summary of Significant Accounting Policies - Summary of Number of Antidilutive Potential Common Shares (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfNumberOfAntidilutivePotentialCommonSharesDetails Summary of Significant Accounting Policies - Summary of Number of Antidilutive Potential Common Shares (Details) Details 48 false false R49.htm 100480 - Disclosure - Summary of Significant Accounting Policies - Summary of Allowance for Doubtful Accounts (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfAllowanceForDoubtfulAccountsDetails Summary of Significant Accounting Policies - Summary of Allowance for Doubtful Accounts (Details) Details 49 false false R50.htm 100490 - Disclosure - Business Combination - Additional Information (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureBusinessCombinationAdditionalInformationDetails Business Combination - Additional Information (Details) Details 50 false false R51.htm 100500 - Disclosure - Business Combination - Schedule of Unaudited Supplemental Pro Forma (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureBusinessCombinationScheduleOfUnauditedSupplementalProFormaDetails Business Combination - Schedule of Unaudited Supplemental Pro Forma (Details) Details 51 false false R52.htm 100510 - Disclosure - Property and Equipment, Net - Schedule of Property and Equipment, Net (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosurePropertyAndEquipmentNetScheduleOfPropertyAndEquipmentNetDetails Property and Equipment, Net - Schedule of Property and Equipment, Net (Details) Details 52 false false R53.htm 100520 - Disclosure - Property and Equipment, Net - Additional Information (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosurePropertyAndEquipmentNetAdditionalInformationDetails Property and Equipment, Net - Additional Information (Details) Details 53 false false R54.htm 100530 - Disclosure - Goodwill and Intangible Assets - Additional Information (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsAdditionalInformationDetails Goodwill and Intangible Assets - Additional Information (Details) Details 54 false false R55.htm 100540 - Disclosure - Goodwill and Intangible Assets - Summary of Changes in Carrying Amount of Goodwill (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsSummaryOfChangesInCarryingAmountOfGoodwillDetails Goodwill and Intangible Assets - Summary of Changes in Carrying Amount of Goodwill (Details) Details 55 false false R56.htm 100550 - Disclosure - Goodwill and Intangible Assets - Summary of Cost, Accumulated Amortization, and Net Balance of the Definite-Lived Intangible Assets (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsSummaryOfCostAccumulatedAmortizationAndNetBalanceOfDefiniteLivedIntangibleAssetsDetails Goodwill and Intangible Assets - Summary of Cost, Accumulated Amortization, and Net Balance of the Definite-Lived Intangible Assets (Details) Details 56 false false R57.htm 100560 - Disclosure - Accrued Expenses - Summary of Accrued Expenses (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureAccruedExpensesSummaryOfAccruedExpensesDetails Accrued Expenses - Summary of Accrued Expenses (Details) Details 57 false false R58.htm 100570 - Disclosure - Long-term Debt - Summary of Long-term Debt (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureLongTermDebtSummaryOfLongTermDebtDetails Long-term Debt - Summary of Long-term Debt (Details) Details 58 false false R59.htm 100590 - Disclosure - Long-term Debt - Additional Information (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureLongTermDebtAdditionalInformationDetails Long-term Debt - Additional Information (Details) Details 59 false false R60.htm 100600 - Disclosure - Long-term Debt - Schedule of Principal Repayments on Long-term Debt (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureLongTermDebtScheduleOfPrincipalRepaymentsOnLongTermDebtDetails Long-term Debt - Schedule of Principal Repayments on Long-term Debt (Details) Details 60 false false R61.htm 100610 - Disclosure - Long-term Debt - Schedule of Borrowing Capacity and Amount Borrowed (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureLongTermDebtScheduleOfBorrowingCapacityAndAmountBorrowedDetails Long-term Debt - Schedule of Borrowing Capacity and Amount Borrowed (Details) Details 61 false false R62.htm 100620 - Disclosure - Warrant Liabilities - Additional Information (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureWarrantLiabilitiesAdditionalInformationDetails Warrant Liabilities - Additional Information (Details) Details 62 false false R63.htm 100630 - Disclosure - Equity - Additional Information (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureEquityAdditionalInformationDetails Equity - Additional Information (Details) Details 63 false false R64.htm 100640 - Disclosure - Stock-Based Compensation - Additional Information (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetails Stock-Based Compensation - Additional Information (Details) Details 64 false false R65.htm 100650 - Disclosure - Stock-Based Compensation - Summary of Restricted Stock Units Activity (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureStockBasedCompensationSummaryOfRestrictedStockUnitsActivityDetails Stock-Based Compensation - Summary of Restricted Stock Units Activity (Details) Details 65 false false R66.htm 100660 - Disclosure - Stock-Based Compensation - Summary of Restricted Stock Units Activity (Parenthetical) (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureStockBasedCompensationSummaryOfRestrictedStockUnitsActivityParentheticalDetails Stock-Based Compensation - Summary of Restricted Stock Units Activity (Parenthetical) (Details) Details 66 false false R67.htm 100670 - Disclosure - Stock-Based Compensation - Summary of Hurdle Price Activity of PSU's (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureStockBasedCompensationSummaryOfHurdlePriceActivityOfPSUSDetails Stock-Based Compensation - Summary of Hurdle Price Activity of PSU's (Details) Details 67 false false R68.htm 100680 - Disclosure - Stock-Based Compensation - Schedule of Grant Date Fair Value of Market Condition-based Awards and PSU's (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureStockBasedCompensationScheduleOfGrantDateFairValueOfMarketConditionBasedAwardsAndPSUSDetails Stock-Based Compensation - Schedule of Grant Date Fair Value of Market Condition-based Awards and PSU's (Details) Details 68 false false R69.htm 100690 - Disclosure - Stock-Based Compensation - Summary of PSUs Activity (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureStockBasedCompensationSummaryOfPsusActivityDetails Stock-Based Compensation - Summary of PSUs Activity (Details) Details 69 false false R70.htm 100700 - Disclosure - Stock-Based Compensation - Schedule of Grant Date Fair Value of Option (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureStockBasedCompensationScheduleOfGrantDateFairValueOfOptionDetails Stock-Based Compensation - Schedule of Grant Date Fair Value of Option (Details) Details 70 false false R71.htm 100710 - Disclosure - Stock-Based Compensation - Summary of Stock Option Activity (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureStockBasedCompensationSummaryOfStockOptionActivityDetails Stock-Based Compensation - Summary of Stock Option Activity (Details) Details 71 false false R72.htm 100720 - Disclosure - Noncontrolling Interest - Additional Information (Detail) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureNoncontrollingInterestAdditionalInformationDetail Noncontrolling Interest - Additional Information (Detail) Details 72 false false R73.htm 100730 - Disclosure - Noncontrolling Interest - Summary of Total Equity Adjusted Due to Purchase of Noncontrolling Interest (Detail) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureNoncontrollingInterestSummaryOfTotalEquityAdjustedDueToPurchaseOfNoncontrollingInterestDetail Noncontrolling Interest - Summary of Total Equity Adjusted Due to Purchase of Noncontrolling Interest (Detail) Details 73 false false R74.htm 100740 - Disclosure - Revenue Recognition - Additional Information (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureRevenueRecognitionAdditionalInformationDetails Revenue Recognition - Additional Information (Details) Details 74 false false R75.htm 100750 - Disclosure - Revenue Recognition - Summary of Disaggregation of Revenue By Revenue Source and Operating Segment (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureRevenueRecognitionSummaryOfDisaggregationOfRevenueByRevenueSourceAndOperatingSegmentDetails Revenue Recognition - Summary of Disaggregation of Revenue By Revenue Source and Operating Segment (Details) Details 75 false false R76.htm 100760 - Disclosure - Income Taxes - Schedule of Loss before Income Tax Expense (Benefit) (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureIncomeTaxesScheduleOfLossBeforeIncomeTaxExpenseBenefitDetails Income Taxes - Schedule of Loss before Income Tax Expense (Benefit) (Details) Details 76 false false R77.htm 100770 - Disclosure - Income Taxes - Schedule of Income Tax Expense (Benefit) (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureIncomeTaxesScheduleOfIncomeTaxExpenseBenefitDetails Income Taxes - Schedule of Income Tax Expense (Benefit) (Details) Details 77 false false R78.htm 100790 - Disclosure - Income Taxes - Schedule of Reconciliation of Difference between Expected Income Tax Expense (Benefit) (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureIncomeTaxesScheduleOfReconciliationOfDifferenceBetweenExpectedIncomeTaxExpenseBenefitDetails Income Taxes - Schedule of Reconciliation of Difference between Expected Income Tax Expense (Benefit) (Details) Details 78 false false R79.htm 100800 - Disclosure - Income Taxes - Additional Information (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureIncomeTaxesAdditionalInformationDetails Income Taxes - Additional Information (Details) Details 79 false false R80.htm 100810 - Disclosure - Income Taxes - Schedule of Reconciliation of Beginning and Ending Amounts of Uncertain Tax Positions Excluding Interest and Penalties (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureIncomeTaxesScheduleOfReconciliationOfBeginningAndEndingAmountsOfUncertainTaxPositionsExcludingInterestAndPenaltiesDetails Income Taxes - Schedule of Reconciliation of Beginning and Ending Amounts of Uncertain Tax Positions Excluding Interest and Penalties (Details) Details 80 false false R81.htm 100820 - Disclosure - Income Taxes - Schedule of Deferred Income Taxes (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureIncomeTaxesScheduleOfDeferredIncomeTaxesDetails Income Taxes - Schedule of Deferred Income Taxes (Details) Details 81 false false R82.htm 100830 - Disclosure - Income Taxes - Schedule Of Valuation Allowance (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureIncomeTaxesScheduleOfValuationAllowanceDetails Income Taxes - Schedule Of Valuation Allowance (Details) Details 82 false false R83.htm 100840 - Disclosure - Income Taxes - Schedule of Foreign Tax Operating Loss Carryforwards Expiring (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureIncomeTaxesScheduleOfForeignTaxOperatingLossCarryforwardsExpiringDetails Income Taxes - Schedule of Foreign Tax Operating Loss Carryforwards Expiring (Details) Details 83 false false R84.htm 100850 - Disclosure - Commitment and Contingencies - Additional Information (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureCommitmentAndContingenciesAdditionalInformationDetails Commitment and Contingencies - Additional Information (Details) Details 84 false false R85.htm 100860 - Disclosure - Commitment and Contingencies - Schedule of Rent Expense (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureCommitmentAndContingenciesScheduleOfRentExpenseDetails Commitment and Contingencies - Schedule of Rent Expense (Details) Details 85 false false R86.htm 100870 - Disclosure - Commitment and Contingencies - Summary of Minimum Annual Commitments Under Operating Leases (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureCommitmentAndContingenciesSummaryOfMinimumAnnualCommitmentsUnderOperatingLeasesDetails Commitment and Contingencies - Summary of Minimum Annual Commitments Under Operating Leases (Details) Details 86 false false R87.htm 100880 - Disclosure - Changes in Accumulated Other Comprehensive Income (Loss) by Component - Summary of Changes in Accumulated Other Comprehensive Income (Loss) (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureChangesInAccumulatedOtherComprehensiveIncomeLossByComponentSummaryOfChangesInAccumulatedOtherComprehensiveIncomeLossDetails Changes in Accumulated Other Comprehensive Income (Loss) by Component - Summary of Changes in Accumulated Other Comprehensive Income (Loss) (Details) Details http://onespaworld.com/20211231/taxonomy/role/DisclosureChangesInAccumulatedOtherComprehensiveIncomeLossByComponentTables 87 false false R88.htm 100890 - Disclosure - Fair Value Measurements and Derivatives - Summary of Carrying Amounts and Estimated Fair Values of the Company's Cash, Restricted Cash, and Long-term Debt (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureFairValueMeasurementsAndDerivativesSummaryOfCarryingAmountsAndEstimatedFairValuesOfCompanySCashRestrictedCashAndLongTermDebtDetails Fair Value Measurements and Derivatives - Summary of Carrying Amounts and Estimated Fair Values of the Company's Cash, Restricted Cash, and Long-term Debt (Details) Details 88 false false R89.htm 100900 - Disclosure - Fair Value Measurements and Derivatives - Summary of Fair Value on Recurring Basis (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureFairValueMeasurementsAndDerivativesSummaryOfFairValueOnRecurringBasisDetails Fair Value Measurements and Derivatives - Summary of Fair Value on Recurring Basis (Details) Details 89 false false R90.htm 100910 - Disclosure - Fair Value Measurements and Derivatives - Significant Assumptions used to Determine Fair Value of Public and 2020 PIPE Warrants (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureFairValueMeasurementsAndDerivativesSignificantAssumptionsUsedToDetermineFairValueOfPublicAnd2020PIPEWarrantsDetails Fair Value Measurements and Derivatives - Significant Assumptions used to Determine Fair Value of Public and 2020 PIPE Warrants (Details) Details 90 false false R91.htm 100920 - Disclosure - Fair Value Measurements and Derivatives - Significant Assumptions used to Determine Fair Value of Sponsor Warrants (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureFairValueMeasurementsAndDerivativesSignificantAssumptionsUsedToDetermineFairValueOfSponsorWarrantsDetails Fair Value Measurements and Derivatives - Significant Assumptions used to Determine Fair Value of Sponsor Warrants (Details) Details 91 false false R92.htm 100930 - Disclosure - Fair Value Measurements and Derivatives - Additional information (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureFairValueMeasurementsAndDerivativesAdditionalInformationDetails Fair Value Measurements and Derivatives - Additional information (Details) Details 92 false false R93.htm 100940 - Disclosure - Fair Value Measurements and Derivatives - Summary of Interest Rate Swap Contract (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureFairValueMeasurementsAndDerivativesSummaryOfInterestRateSwapContractDetails Fair Value Measurements and Derivatives - Summary of Interest Rate Swap Contract (Details) Details 93 false false R94.htm 100950 - Disclosure - Transactions with Related Parties - Additional Information (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureTransactionsWithRelatedPartiesAdditionalInformationDetails Transactions with Related Parties - Additional Information (Details) Details 94 false false R95.htm 100960 - Disclosure - Transactions with Related Parties - Summary of Purchases of Beauty Products from Related Parties and Cost of Revenues (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureTransactionsWithRelatedPartiesSummaryOfPurchasesOfBeautyProductsFromRelatedPartiesAndCostOfRevenuesDetails Transactions with Related Parties - Summary of Purchases of Beauty Products from Related Parties and Cost of Revenues (Details) Details 95 false false R96.htm 100970 - Disclosure - Profit Sharing Plans - Additional Information (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureProfitSharingPlansAdditionalInformationDetails Profit Sharing Plans - Additional Information (Details) Details 96 false false R97.htm 100980 - Disclosure - Segment and Geographic Information - Summary of Geographic information (Details) Sheet http://onespaworld.com/20211231/taxonomy/role/DisclosureSegmentAndGeographicInformationSummaryOfGeographicInformationDetails Segment and Geographic Information - Summary of Geographic information (Details) Details 97 false false All Reports Book All Reports osw-10k_20211231.htm osw-20211231.xsd osw-20211231_cal.xml osw-20211231_def.xml osw-20211231_lab.xml osw-20211231_pre.xml osw-ex1015_159.htm osw-ex211_9.htm osw-ex231_6.htm osw-ex311_12.htm osw-ex312_7.htm osw-ex321_10.htm osw-ex322_8.htm osw-ex41_11.htm ganj31iuekcb000001.jpg http://fasb.org/us-gaap/2021-01-31 http://xbrl.sec.gov/dei/2021q4 true true