Label	Element	Value
Effect Of Organizational Transactions Value	onew_EffectOfOrganizationalTransactionsValue	$ 101,605,000
Effect Of Organizational Transactions Value	onew_EffectOfOrganizationalTransactionsValue	7,215,000
Accumulated Unpaid Preferred Returns	onew_AccumulatedUnpaidPreferredReturns	(3,187,000)
Noncontrolling Interest, Distribution to Members	onew_NoncontrollingInterestDistributionToMembers	1,042,000
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	655,000
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	1,558,000
Temporary Equity, Elimination as Part of Reorganization	us-gaap_TemporaryEquityEliminationAsPartofReorganization	88,131,000
Accretion of Redeemable Preferred and Issuance Costs	onew_AccretionOfRedeemablePreferredAndIssuanceCosts	(236,000)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	14,689,000
Temporary Equity, Accretion to Redemption Value	us-gaap_TemporaryEquityAccretionToRedemptionValue	236,000
Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Paid	us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberCashDistributionsPaid	1,310,000
Adjustments to Additional Paid in Capital, Establishment of Liabilities under Tax Receivable Agreement and Related to Changes to Deferred Tax Assets	onew_AdjustmentsToAdditionalPaidInCapitalEstablishmentOfLiabilitiesUnderTaxReceivableAgreementAndRelatedToChangesToDeferredTaxAssets	5,069,000
Temporary Equity, Accretion of Dividends	us-gaap_TemporaryEquityAccretionOfDividends	3,187,000
Temporary Equity, Net Income	us-gaap_TemporaryEquityNetIncome	0
Members Equity [Member]
Effect Of Organizational Transactions Value	onew_EffectOfOrganizationalTransactionsValue	(27,298,000)
Effect Of Organizational Transactions Value	onew_EffectOfOrganizationalTransactionsValue	0
Exchange of B shares for A shares	us-gaap_StockIssuedDuringPeriodValueConversionOfUnits	0
Accumulated Unpaid Preferred Returns	onew_AccumulatedUnpaidPreferredReturns	(3,187,000)
Noncontrolling Interest, Distribution to Members	onew_NoncontrollingInterestDistributionToMembers	310,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	(1,394,000)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	0
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	655,000
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	0
Accretion of Redeemable Preferred and Issuance Costs	onew_AccretionOfRedeemablePreferredAndIssuanceCosts	(236,000)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	0
Adjustments to Additional Paid in Capital, Establishment of Liabilities under Tax Receivable Agreement and Related to Changes to Deferred Tax Assets	onew_AdjustmentsToAdditionalPaidInCapitalEstablishmentOfLiabilitiesUnderTaxReceivableAgreementAndRelatedToChangesToDeferredTaxAssets	0
Accumulated Other Comprehensive Loss [Member]
Effect Of Organizational Transactions Value	onew_EffectOfOrganizationalTransactionsValue	0
Effect Of Organizational Transactions Value	onew_EffectOfOrganizationalTransactionsValue	0
Exchange of B shares for A shares	us-gaap_StockIssuedDuringPeriodValueConversionOfUnits	0
Accumulated Unpaid Preferred Returns	onew_AccumulatedUnpaidPreferredReturns	0
Noncontrolling Interest, Distribution to Members	onew_NoncontrollingInterestDistributionToMembers	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	0
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	0
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	0
Accretion of Redeemable Preferred and Issuance Costs	onew_AccretionOfRedeemablePreferredAndIssuanceCosts	0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	0
Adjustments to Additional Paid in Capital, Establishment of Liabilities under Tax Receivable Agreement and Related to Changes to Deferred Tax Assets	onew_AdjustmentsToAdditionalPaidInCapitalEstablishmentOfLiabilitiesUnderTaxReceivableAgreementAndRelatedToChangesToDeferredTaxAssets	0
Additional Paid-in Capital [Member]
Effect Of Organizational Transactions Value	onew_EffectOfOrganizationalTransactionsValue	55,740,000
Effect Of Organizational Transactions Value	onew_EffectOfOrganizationalTransactionsValue	50,465,000
Exchange of B shares for A shares	us-gaap_StockIssuedDuringPeriodValueConversionOfUnits	3,253,000
Accumulated Unpaid Preferred Returns	onew_AccumulatedUnpaidPreferredReturns	0
Noncontrolling Interest, Distribution to Members	onew_NoncontrollingInterestDistributionToMembers	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	0
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	0
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	1,558,000
Accretion of Redeemable Preferred and Issuance Costs	onew_AccretionOfRedeemablePreferredAndIssuanceCosts	0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	0
Adjustments to Additional Paid in Capital, Establishment of Liabilities under Tax Receivable Agreement and Related to Changes to Deferred Tax Assets	onew_AdjustmentsToAdditionalPaidInCapitalEstablishmentOfLiabilitiesUnderTaxReceivableAgreementAndRelatedToChangesToDeferredTaxAssets	5,069,000
Retained Earnings [Member]
Effect Of Organizational Transactions Value	onew_EffectOfOrganizationalTransactionsValue	0
Effect Of Organizational Transactions Value	onew_EffectOfOrganizationalTransactionsValue	0
Accumulated Unpaid Preferred Returns	onew_AccumulatedUnpaidPreferredReturns	0
Noncontrolling Interest, Distribution to Members	onew_NoncontrollingInterestDistributionToMembers	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	17,425,000
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	0
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	0
Accretion of Redeemable Preferred and Issuance Costs	onew_AccretionOfRedeemablePreferredAndIssuanceCosts	0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	668,000
Adjustments to Additional Paid in Capital, Establishment of Liabilities under Tax Receivable Agreement and Related to Changes to Deferred Tax Assets	onew_AdjustmentsToAdditionalPaidInCapitalEstablishmentOfLiabilitiesUnderTaxReceivableAgreementAndRelatedToChangesToDeferredTaxAssets	0
Noncontrolling Interest [Member]
Effect Of Organizational Transactions Value	onew_EffectOfOrganizationalTransactionsValue	73,017,000
Effect Of Organizational Transactions Value	onew_EffectOfOrganizationalTransactionsValue	(43,254,000)
Exchange of B shares for A shares	us-gaap_StockIssuedDuringPeriodValueConversionOfUnits	(3,253,000)
Accumulated Unpaid Preferred Returns	onew_AccumulatedUnpaidPreferredReturns	0
Noncontrolling Interest, Distribution to Members	onew_NoncontrollingInterestDistributionToMembers	732,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	350,000
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	32,127,000
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	0
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	0
Accretion of Redeemable Preferred and Issuance Costs	onew_AccretionOfRedeemablePreferredAndIssuanceCosts	0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	14,021,000
Adjustments to Additional Paid in Capital, Establishment of Liabilities under Tax Receivable Agreement and Related to Changes to Deferred Tax Assets	onew_AdjustmentsToAdditionalPaidInCapitalEstablishmentOfLiabilitiesUnderTaxReceivableAgreementAndRelatedToChangesToDeferredTaxAssets	0
Common Class A [Member] | Common Stock [Member]
Effect Of Organizational Transactions Value	onew_EffectOfOrganizationalTransactionsValue	61,000
Effect Of Organizational Transactions Value	onew_EffectOfOrganizationalTransactionsValue	40,000
Exchange of B shares for A shares	us-gaap_StockIssuedDuringPeriodValueConversionOfUnits	3,000
Accumulated Unpaid Preferred Returns	onew_AccumulatedUnpaidPreferredReturns	0
Noncontrolling Interest, Distribution to Members	onew_NoncontrollingInterestDistributionToMembers	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	0
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	0
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	$ 0
Effect of Organizational Transactions, Shares	onew_EffectOfOrganizationalTransactionsShares	6,088,000
Effect of Organizational Transactions, Shares	onew_EffectOfOrganizationalTransactionsShares	3,979,000
Accretion of Redeemable Preferred and Issuance Costs	onew_AccretionOfRedeemablePreferredAndIssuanceCosts	$ 0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	0
Adjustments to Additional Paid in Capital, Establishment of Liabilities under Tax Receivable Agreement and Related to Changes to Deferred Tax Assets	onew_AdjustmentsToAdditionalPaidInCapitalEstablishmentOfLiabilitiesUnderTaxReceivableAgreementAndRelatedToChangesToDeferredTaxAssets	$ 0
Exchange of B shares for A shares (in shares)	us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits	325,000
Class B Common Stock [Member] | Common Stock [Member]
Effect Of Organizational Transactions Value	onew_EffectOfOrganizationalTransactionsValue	$ 85,000
Effect Of Organizational Transactions Value	onew_EffectOfOrganizationalTransactionsValue	(36,000)
Exchange of B shares for A shares	us-gaap_StockIssuedDuringPeriodValueConversionOfUnits	(3,000)
Accumulated Unpaid Preferred Returns	onew_AccumulatedUnpaidPreferredReturns	0
Noncontrolling Interest, Distribution to Members	onew_NoncontrollingInterestDistributionToMembers	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	us-gaap_ProfitLoss	0
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	0
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture	us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	$ 0
Effect of Organizational Transactions, Shares	onew_EffectOfOrganizationalTransactionsShares	8,462,000
Effect of Organizational Transactions, Shares	onew_EffectOfOrganizationalTransactionsShares	(3,554,000)
Accretion of Redeemable Preferred and Issuance Costs	onew_AccretionOfRedeemablePreferredAndIssuanceCosts	$ 0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	0
Adjustments to Additional Paid in Capital, Establishment of Liabilities under Tax Receivable Agreement and Related to Changes to Deferred Tax Assets	onew_AdjustmentsToAdditionalPaidInCapitalEstablishmentOfLiabilitiesUnderTaxReceivableAgreementAndRelatedToChangesToDeferredTaxAssets	$ 0
Exchange of B shares for A shares (in shares)	us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits	(325,000)