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Segment disclosures

Company overview

OPPENHEIMER HOLDINGS INC.

Each reported dimension combination stays separate. Revenue and operating income are shown as reported, with their dates and sources.

Revenue · Reported segment facts

180 dimension combinations 776 retained observations 16 reported periods Partial retained history

Counts describe retained dimensioned rows only. Periods and members can change across reports, and this view does not infer missing values or expected segment totals.

Operating Segments · Advisory Fees · Asset Management Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:AdvisoryFeesMember;us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-31555387000 USD20260226Open filing evidence
2024-01-01 – 2024-12-31483391000 USD20260226Open filing evidence
2024-07-01 – 2024-09-3027432000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2024-01-01 – 2024-09-3079633000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2024-04-01 – 2024-06-3026241000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2024-01-01 – 2024-06-3052201000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-12-31415450000 USD2025-02-27 · 21:35:06.000ZOpen filing evidence
2023-07-01 – 2023-09-3025188000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-3072023000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-04-01 – 2023-06-3022196000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-3046150000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence

Operating Segments · Advisory Fees · Capital Markets Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:AdvisoryFeesMember;us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-310 USD20260501Open filing evidence
2025-01-01 – 2025-12-310 USD20260226Open filing evidence
2025-07-01 – 2025-09-300 USD20251031Open filing evidence
2025-01-01 – 2025-09-300 USD20251031Open filing evidence
2025-04-01 – 2025-06-300 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD20260501Open filing evidence
2024-01-01 – 2024-12-310 USD20260226Open filing evidence
2024-07-01 – 2024-09-300 USD20251031Open filing evidence
2024-01-01 – 2024-09-300 USD20251031Open filing evidence
2024-04-01 – 2024-06-300 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-06-300 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-03-310 USD2025-04-25 · 12:32:12.000ZOpen filing evidence
2023-01-01 – 2023-12-310 USD2025-02-27 · 21:35:06.000ZOpen filing evidence
2023-07-01 – 2023-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-04-01 – 2023-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence

Operating Segments · Advisory Fees · Private Client Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:AdvisoryFeesMember;us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember
PeriodValueUnitFiledEvidence
2024-07-01 – 2024-09-3094188000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2024-01-01 – 2024-09-30274011000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-07-01 – 2023-09-3082774000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-30238168000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence

Operating Segments · Advisory Fees · Wealth Management Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:AdvisoryFeesMember;us-gaap:StatementBusinessSegmentsAxis=opy:WealthManagementSegmentMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-31141694000 USD20260501Open filing evidence
2025-07-01 – 2025-09-30134397000 USD20251031Open filing evidence
2025-01-01 – 2025-09-30388799000 USD20251031Open filing evidence
2025-04-01 – 2025-06-30125610000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-06-30254402000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-03-31128792000 USD20260501Open filing evidence
2024-07-01 – 2024-09-30121620000 USD20251031Open filing evidence
2024-01-01 – 2024-09-30353644000 USD20251031Open filing evidence
2024-04-01 – 2024-06-30117188000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-06-30232024000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-03-31114836000 USD2025-04-25 · 12:32:12.000ZOpen filing evidence

Operating Segments · Bank Deposit Sweep Income · Asset Management Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:BankDepositSweepIncomeMember;us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-31114811000 USD20260226Open filing evidence
2024-01-01 – 2024-12-31138770000 USD20260226Open filing evidence
2024-07-01 – 2024-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2024-04-01 – 2024-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2024-01-01 – 2024-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-12-31172807000 USD2025-02-27 · 21:35:06.000ZOpen filing evidence
2023-07-01 – 2023-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-04-01 – 2023-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence

Operating Segments · Bank Deposit Sweep Income · Capital Markets Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:BankDepositSweepIncomeMember;us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-310 USD20260501Open filing evidence
2025-01-01 – 2025-12-310 USD20260226Open filing evidence
2025-07-01 – 2025-09-300 USD20251031Open filing evidence
2025-01-01 – 2025-09-300 USD20251031Open filing evidence
2025-04-01 – 2025-06-300 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD20260501Open filing evidence
2024-01-01 – 2024-12-310 USD20260226Open filing evidence
2024-07-01 – 2024-09-300 USD20251031Open filing evidence
2024-01-01 – 2024-09-300 USD20251031Open filing evidence
2024-04-01 – 2024-06-300 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-06-300 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-03-310 USD2025-04-25 · 12:32:12.000ZOpen filing evidence
2023-01-01 – 2023-12-310 USD2025-02-27 · 21:35:06.000ZOpen filing evidence
2023-07-01 – 2023-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence

Operating Segments · Bank Deposit Sweep Income · Private Client Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:BankDepositSweepIncomeMember;us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember
PeriodValueUnitFiledEvidence
2024-07-01 – 2024-09-3034875000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2024-01-01 – 2024-09-30106407000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-07-01 – 2023-09-3042304000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-30135273000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence

Operating Segments · Bank Deposit Sweep Income · Wealth Management Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:BankDepositSweepIncomeMember;us-gaap:StatementBusinessSegmentsAxis=opy:WealthManagementSegmentMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-3126118000 USD20260501Open filing evidence
2025-07-01 – 2025-09-3028349000 USD20251031Open filing evidence
2025-01-01 – 2025-09-3087078000 USD20251031Open filing evidence
2025-04-01 – 2025-06-3028654000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-06-3058729000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-03-3130075000 USD20260501Open filing evidence
2024-07-01 – 2024-09-3034875000 USD20251031Open filing evidence
2024-01-01 – 2024-09-30106407000 USD20251031Open filing evidence
2024-04-01 – 2024-06-3034847000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-06-3071532000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-03-3136685000 USD2025-04-25 · 12:32:12.000ZOpen filing evidence

Operating Segments · Commissions From Sales And Trading · Asset Management Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:CommissionsFromSalesAndTradingMember;us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-31202336000 USD20260226Open filing evidence
2024-01-01 – 2024-12-31188783000 USD20260226Open filing evidence
2024-07-01 – 2024-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-12-31155039000 USD2025-02-27 · 21:35:06.000ZOpen filing evidence
2023-07-01 – 2023-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence

Operating Segments · Commissions From Sales And Trading · Capital Markets Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:CommissionsFromSalesAndTradingMember;us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-3167941000 USD20260501Open filing evidence
2025-01-01 – 2025-12-31229028000 USD20260226Open filing evidence
2025-07-01 – 2025-09-3058807000 USD20251031Open filing evidence
2025-01-01 – 2025-09-30167973000 USD20251031Open filing evidence
2025-04-01 – 2025-06-3055217000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-06-30109165000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-03-3153948000 USD20260501Open filing evidence
2024-01-01 – 2024-12-31188113000 USD20260226Open filing evidence
2024-07-01 – 2024-09-3048195000 USD20251031Open filing evidence
2024-01-01 – 2024-09-30135414000 USD20251031Open filing evidence
2024-04-01 – 2024-06-3044174000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-06-3087219000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-03-3143045000 USD2025-04-25 · 12:32:12.000ZOpen filing evidence
2023-01-01 – 2023-12-31162706000 USD2025-02-27 · 21:35:06.000ZOpen filing evidence
2023-07-01 – 2023-09-3039539000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-30122740000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence

Operating Segments · Commissions From Sales And Trading · Private Client Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:CommissionsFromSalesAndTradingMember;us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember
PeriodValueUnitFiledEvidence
2024-07-01 – 2024-09-3046641000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2024-01-01 – 2024-09-30136337000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-07-01 – 2023-09-3036176000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-30112766000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence

Operating Segments · Commissions From Sales And Trading · Wealth Management Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:CommissionsFromSalesAndTradingMember;us-gaap:StatementBusinessSegmentsAxis=opy:WealthManagementSegmentMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-3151567000 USD20260501Open filing evidence
2025-07-01 – 2025-09-3053511000 USD20251031Open filing evidence
2025-01-01 – 2025-09-30149481000 USD20251031Open filing evidence
2025-04-01 – 2025-06-3047203000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-06-3095970000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-03-3148767000 USD20260501Open filing evidence
2024-07-01 – 2024-09-3046641000 USD20251031Open filing evidence
2024-01-01 – 2024-09-30136337000 USD20251031Open filing evidence
2024-04-01 – 2024-06-3044766000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-06-3089696000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-03-3144930000 USD2025-04-25 · 12:32:12.000ZOpen filing evidence

Operating Segments · Investment Banking Advisory · Asset Management Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:InvestmentBankingAdvisoryMember;us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-31454000 USD20260226Open filing evidence
2024-01-01 – 2024-12-3146000 USD20260226Open filing evidence
2024-07-01 – 2024-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-12-310 USD2025-02-27 · 21:35:06.000ZOpen filing evidence
2023-07-01 – 2023-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence

Operating Segments · Investment Banking Advisory · Capital Markets Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:InvestmentBankingAdvisoryMember;us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-3162996000 USD20260501Open filing evidence
2025-01-01 – 2025-12-31113066000 USD20260226Open filing evidence
2025-07-01 – 2025-09-3021865000 USD20251031Open filing evidence
2025-01-01 – 2025-09-3070315000 USD20251031Open filing evidence
2025-04-01 – 2025-06-3022487000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-06-3048449000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-03-3125962000 USD20260501Open filing evidence
2024-01-01 – 2024-12-31107224000 USD20260226Open filing evidence
2024-07-01 – 2024-09-3032798000 USD20251031Open filing evidence
2024-01-01 – 2024-09-3076957000 USD20251031Open filing evidence
2024-04-01 – 2024-06-3012291000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-06-3044159000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-03-3131868000 USD2025-04-25 · 12:32:12.000ZOpen filing evidence
2023-01-01 – 2023-12-3169623000 USD2025-02-27 · 21:35:06.000ZOpen filing evidence
2023-07-01 – 2023-09-3018001000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-3056883000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence

Operating Segments · Investment Banking Advisory · Private Client Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:InvestmentBankingAdvisoryMember;us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember
PeriodValueUnitFiledEvidence
2024-07-01 – 2024-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2024-01-01 – 2024-09-3021000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-07-01 – 2023-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence

Operating Segments · Investment Banking Advisory · Wealth Management Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:InvestmentBankingAdvisoryMember;us-gaap:StatementBusinessSegmentsAxis=opy:WealthManagementSegmentMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-31268000 USD20260501Open filing evidence
2025-07-01 – 2025-09-30438000 USD20251031Open filing evidence
2025-01-01 – 2025-09-30438000 USD20251031Open filing evidence
2025-04-01 – 2025-06-300 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-06-300 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-03-310 USD20260501Open filing evidence
2024-07-01 – 2024-09-300 USD20251031Open filing evidence
2024-01-01 – 2024-09-3021000 USD20251031Open filing evidence
2024-04-01 – 2024-06-300 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-06-3021000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-03-3121000 USD2025-04-25 · 12:32:12.000ZOpen filing evidence

Operating Segments · Investment Banking Capital Markets · Asset Management Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:InvestmentBankingCapitalMarketsMember;us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-3112107000 USD20260226Open filing evidence
2024-01-01 – 2024-12-3111155000 USD20260226Open filing evidence
2024-07-01 – 2024-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-12-317543000 USD2025-02-27 · 21:35:06.000ZOpen filing evidence
2023-07-01 – 2023-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence

Operating Segments · Investment Banking Capital Markets · Capital Markets Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:InvestmentBankingCapitalMarketsMember;us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-3130521000 USD20260501Open filing evidence
2025-01-01 – 2025-12-31140765000 USD20260226Open filing evidence
2025-07-01 – 2025-09-3052143000 USD20251031Open filing evidence
2025-01-01 – 2025-09-3089129000 USD20251031Open filing evidence
2025-04-01 – 2025-06-3018288000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-06-3036987000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-03-3118699000 USD20260501Open filing evidence
2024-01-01 – 2024-12-3158022000 USD20260226Open filing evidence
2024-07-01 – 2024-09-3016977000 USD20251031Open filing evidence
2024-01-01 – 2024-09-3046626000 USD20251031Open filing evidence
2024-04-01 – 2024-06-3014022000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-06-3029649000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-03-3115627000 USD2025-04-25 · 12:32:12.000ZOpen filing evidence
2023-01-01 – 2023-12-3140499000 USD2025-02-27 · 21:35:06.000ZOpen filing evidence
2023-07-01 – 2023-09-3017295000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-3032881000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence

Operating Segments · Investment Banking Capital Markets · Private Client Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:InvestmentBankingCapitalMarketsMember;us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember
PeriodValueUnitFiledEvidence
2024-07-01 – 2024-09-302410000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2024-01-01 – 2024-09-308238000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-07-01 – 2023-09-302115000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-305590000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence

Operating Segments · Investment Banking Capital Markets · Wealth Management Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:InvestmentBankingCapitalMarketsMember;us-gaap:StatementBusinessSegmentsAxis=opy:WealthManagementSegmentMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-313935000 USD20260501Open filing evidence
2025-07-01 – 2025-09-303042000 USD20251031Open filing evidence
2025-01-01 – 2025-09-308762000 USD20251031Open filing evidence
2025-04-01 – 2025-06-302758000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-06-305720000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-03-312962000 USD20260501Open filing evidence
2024-07-01 – 2024-09-302410000 USD20251031Open filing evidence
2024-01-01 – 2024-09-308238000 USD20251031Open filing evidence
2024-04-01 – 2024-06-302807000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-06-305828000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-03-313021000 USD2025-04-25 · 12:32:12.000ZOpen filing evidence

Operating Segments · Mutual Fund Income · Asset Management Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:MutualFundIncomeMember;us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-3132984000 USD20260226Open filing evidence
2024-01-01 – 2024-12-3132775000 USD20260226Open filing evidence
2024-07-01 – 2024-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2024-01-01 – 2024-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-12-3131457000 USD2025-02-27 · 21:35:06.000ZOpen filing evidence
2023-07-01 – 2023-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence

Operating Segments · Mutual Fund Income · Capital Markets Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:MutualFundIncomeMember;us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-311000 USD20260501Open filing evidence
2025-01-01 – 2025-12-314000 USD20260226Open filing evidence
2025-07-01 – 2025-09-301000 USD20251031Open filing evidence
2025-01-01 – 2025-09-303000 USD20251031Open filing evidence
2025-04-01 – 2025-06-301000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-06-302000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-03-311000 USD20260501Open filing evidence
2024-01-01 – 2024-12-314000 USD20260226Open filing evidence
2024-07-01 – 2024-09-301000 USD20251031Open filing evidence
2024-01-01 – 2024-09-303000 USD20251031Open filing evidence
2024-04-01 – 2024-06-301000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-06-302000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-03-311000 USD2025-04-25 · 12:32:12.000ZOpen filing evidence
2023-01-01 – 2023-12-317000 USD2025-02-27 · 21:35:06.000ZOpen filing evidence
2023-07-01 – 2023-09-301000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-306000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence

Operating Segments · Mutual Fund Income · Private Client Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:MutualFundIncomeMember;us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember
PeriodValueUnitFiledEvidence
2024-07-01 – 2024-09-308231000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2024-01-01 – 2024-09-3024201000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-07-01 – 2023-09-308209000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-3023632000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence

Operating Segments · Mutual Fund Income · Wealth Management Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:MutualFundIncomeMember;us-gaap:StatementBusinessSegmentsAxis=opy:WealthManagementSegmentMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-318811000 USD20260501Open filing evidence
2025-07-01 – 2025-09-308350000 USD20251031Open filing evidence
2025-01-01 – 2025-09-3024079000 USD20251031Open filing evidence
2025-04-01 – 2025-06-307585000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-06-3015729000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-03-318144000 USD20260501Open filing evidence
2024-07-01 – 2024-09-308231000 USD20251031Open filing evidence
2024-01-01 – 2024-09-3024201000 USD20251031Open filing evidence
2024-04-01 – 2024-06-308106000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-06-3015970000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-03-317864000 USD2025-04-25 · 12:32:12.000ZOpen filing evidence

Operating Segments · Other · Asset Management Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:OtherMember;us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-3116308000 USD20260226Open filing evidence
2024-01-01 – 2024-12-3112837000 USD20260226Open filing evidence
2024-07-01 – 2024-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2024-01-01 – 2024-09-30-1000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-12-3115499000 USD2025-02-27 · 21:35:06.000ZOpen filing evidence
2023-07-01 – 2023-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-300 USD2024-10-25 · 12:11:51.000ZOpen filing evidence

Operating Segments · Other · Capital Markets Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:OtherMember;us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-3148000 USD20260501Open filing evidence
2025-01-01 – 2025-12-311772000 USD20260226Open filing evidence
2025-07-01 – 2025-09-3084000 USD20251031Open filing evidence
2025-01-01 – 2025-09-301737000 USD20251031Open filing evidence
2025-04-01 – 2025-06-30547000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-06-301655000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-03-311108000 USD20260501Open filing evidence
2024-01-01 – 2024-12-312864000 USD20260226Open filing evidence
2024-07-01 – 2024-09-30896000 USD20251031Open filing evidence
2024-01-01 – 2024-09-301796000 USD20251031Open filing evidence
2024-04-01 – 2024-06-30580000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-06-30900000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-03-31320000 USD2025-04-25 · 12:32:12.000ZOpen filing evidence
2023-01-01 – 2023-12-311436000 USD2025-02-27 · 21:35:06.000ZOpen filing evidence
2023-07-01 – 2023-09-30311000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-301411000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence

Operating Segments · Other · Private Client Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:OtherMember;us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember
PeriodValueUnitFiledEvidence
2024-07-01 – 2024-09-302993000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2024-01-01 – 2024-09-309577000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-07-01 – 2023-09-303236000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-3010513000 USD2024-10-25 · 12:11:51.000ZOpen filing evidence

Operating Segments · Other · Wealth Management Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:OtherMember;us-gaap:StatementBusinessSegmentsAxis=opy:WealthManagementSegmentMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-314211000 USD20260501Open filing evidence
2025-07-01 – 2025-09-307809000 USD20251031Open filing evidence
2025-01-01 – 2025-09-3015779000 USD20251031Open filing evidence
2025-04-01 – 2025-06-303620000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-06-307969000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2025-01-01 – 2025-03-314349000 USD20260501Open filing evidence
2024-07-01 – 2024-09-302993000 USD20251031Open filing evidence
2024-01-01 – 2024-09-309576000 USD20251031Open filing evidence
2024-04-01 – 2024-06-303167000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-06-306583000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-03-313416000 USD2025-04-25 · 12:32:12.000ZOpen filing evidence

Operating Segments · Asset Management Segment

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-311035403000 RestatedUSD20260226Open filing evidence
2024-01-01 – 2024-12-31972052000 RestatedUSD20260226Open filing evidence
2024-07-01 – 2024-09-3027262000 RestatedUSD2024-10-25 · 12:11:51.000ZOpen filing evidence
2024-01-01 – 2024-09-3078015000 RestatedUSD2024-10-25 · 12:11:51.000ZOpen filing evidence
2024-04-01 – 2024-06-3025825000 RestatedUSD2024-07-26 · 12:51:29.000ZOpen filing evidence
2024-01-01 – 2024-06-3050753000 RestatedUSD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-12-31890187000 RestatedUSD2025-02-27 · 21:35:06.000ZOpen filing evidence
2023-07-01 – 2023-09-3020830000 RestatedUSD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-3066987000 RestatedUSD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-04-01 – 2023-06-3022198000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-3046157000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence

Operating Segments · Capital Markets Segment

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30179163000 RestatedUSD20260731Open filing evidence
2026-01-01 – 2026-06-30368285000 RestatedUSD20260731Open filing evidence
2026-01-01 – 2026-03-31189122000 RestatedUSD20260501Open filing evidence
2025-01-01 – 2025-12-31591315000 RestatedUSD20260226Open filing evidence
2025-07-01 – 2025-09-30162145000 RestatedUSD20251031Open filing evidence
2025-01-01 – 2025-09-30408387000 RestatedUSD20251031Open filing evidence
2025-04-01 – 2025-06-30122981000 RestatedUSD20260731Open filing evidence
2025-01-01 – 2025-06-30246242000 RestatedUSD20260731Open filing evidence
2025-01-01 – 2025-03-31123261000 RestatedUSD20260501Open filing evidence
2024-01-01 – 2024-12-31447579000 RestatedUSD20260226Open filing evidence
2024-07-01 – 2024-09-30124030000 RestatedUSD20251031Open filing evidence
2024-01-01 – 2024-09-30328254000 RestatedUSD20251031Open filing evidence
2024-04-01 – 2024-06-3092141000 RestatedUSD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-06-30204224000 RestatedUSD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-03-31112083000 RestatedUSD2025-04-25 · 12:32:12.000ZOpen filing evidence
2023-01-01 – 2023-12-31345897000 RestatedUSD20260226Open filing evidence
2023-07-01 – 2023-09-3094576000 RestatedUSD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-30264440000 RestatedUSD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-04-01 – 2023-06-3079582000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-30169864000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2022-01-01 – 2022-12-31337821000 USD2025-02-27 · 21:35:06.000ZOpen filing evidence

Operating Segments · Capital Markets Segment · Bank Deposit Sweep Income

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember;srt:ProductOrServiceAxis=opy:BankDepositSweepIncomeMember
PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2024-01-01 – 2024-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-04-01 – 2023-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence

Operating Segments · Private Client Segment

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember
PeriodValueUnitFiledEvidence
2025-04-01 – 2025-06-30246421000 USD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-07-01 – 2024-09-30218787000 RestatedUSD2024-10-25 · 12:11:51.000ZOpen filing evidence
2024-01-01 – 2024-09-30640521000 RestatedUSD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-07-01 – 2023-09-30193254000 RestatedUSD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-01-01 – 2023-09-30597920000 RestatedUSD2024-10-25 · 12:11:51.000ZOpen filing evidence
2023-04-01 – 2023-06-30201245000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-30404666000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence

Operating Segments · Wealth Management Segment

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=opy:WealthManagementSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30272671000 RestatedUSD20260731Open filing evidence
2026-01-01 – 2026-06-30526351000 RestatedUSD20260731Open filing evidence
2026-01-01 – 2026-03-31253680000 RestatedUSD20260501Open filing evidence
2025-01-01 – 2025-12-311035403000 USD20260226Open filing evidence
2025-07-01 – 2025-09-30259726000 RestatedUSD20251031Open filing evidence
2025-01-01 – 2025-09-30748133000 RestatedUSD20251031Open filing evidence
2025-04-01 – 2025-06-30246421000 RestatedUSD20260731Open filing evidence
2025-01-01 – 2025-06-30488407000 RestatedUSD20260731Open filing evidence
2025-01-01 – 2025-03-31241986000 RestatedUSD20260501Open filing evidence
2024-01-01 – 2024-12-31972052000 USD20260226Open filing evidence
2024-07-01 – 2024-09-30246049000 RestatedUSD20251031Open filing evidence
2024-01-01 – 2024-09-30718536000 RestatedUSD20251031Open filing evidence
2024-04-01 – 2024-06-30234526000 RestatedUSD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-06-30472487000 RestatedUSD2025-08-01 · 12:16:36.000ZOpen filing evidence
2024-01-01 – 2024-03-31237961000 RestatedUSD2025-04-25 · 12:32:12.000ZOpen filing evidence
2023-01-01 – 2023-12-31890187000 USD20260226Open filing evidence
2022-01-01 – 2022-12-31774922000 USD2025-02-27 · 21:35:06.000ZOpen filing evidence

Advisory Fees · Asset Management Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=opy:AdvisoryFeesMember;us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-3022196000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-3046150000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-03-3123954000 USD2023-04-28 · 12:54:55.000ZOpen filing evidence

Advisory Fees · Asset Management Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=opy:AdvisoryFeesMember;us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2023-07-01 – 2023-09-3025188000 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-09-3072023000 USD2023-10-27 · 12:17:13.000ZOpen filing evidence

Advisory Fees · Capital Markets

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=opy:AdvisoryFeesMember;us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-310 USD2023-04-28 · 12:54:55.000ZOpen filing evidence

Advisory Fees · Capital Markets Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=opy:AdvisoryFeesMember;us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-300 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-300 USD2023-07-28 · 12:12:03.000ZOpen filing evidence

Advisory Fees · Capital Markets Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=opy:AdvisoryFeesMember;us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-300 USD20260731Open filing evidence
2026-01-01 – 2026-06-300 USD20260731Open filing evidence
2025-04-01 – 2025-06-300 USD20260731Open filing evidence
2025-01-01 – 2025-06-300 USD20260731Open filing evidence
2023-01-01 – 2023-12-310 USD2024-03-01 · 15:22:18.000ZOpen filing evidence
2023-07-01 – 2023-09-300 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-09-300 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2022-01-01 – 2022-12-31117000 USD2024-03-01 · 15:22:18.000ZOpen filing evidence

Advisory Fees · Private Client

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=opy:AdvisoryFeesMember;us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-31326240000 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Advisory Fees · Private Client Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=opy:AdvisoryFeesMember;us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2023-07-01 – 2023-09-3082774000 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-09-30238168000 USD2023-10-27 · 12:17:13.000ZOpen filing evidence

Advisory Fees · Wealth Management Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=opy:AdvisoryFeesMember;us-gaap:StatementBusinessSegmentsAxis=opy:WealthManagementSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30145549000 USD20260731Open filing evidence
2026-01-01 – 2026-06-30287243000 USD20260731Open filing evidence
2025-04-01 – 2025-06-30125610000 USD20260731Open filing evidence
2025-01-01 – 2025-06-30254402000 USD20260731Open filing evidence

Advisory Fees · Corporate And Other

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=opy:AdvisoryFeesMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-317000 USD2023-04-28 · 12:54:55.000ZOpen filing evidence
2022-01-01 – 2022-12-3134000 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Bank Deposit Sweep Income · Asset Management Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=opy:BankDepositSweepIncomeMember;us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-300 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-300 USD2023-07-28 · 12:12:03.000ZOpen filing evidence

Bank Deposit Sweep Income · Asset Management Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=opy:BankDepositSweepIncomeMember;us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-310 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-07-01 – 2023-09-300 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-09-300 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-03-310 USD2024-04-26 · 13:24:16.000ZOpen filing evidence

Bank Deposit Sweep Income · Capital Markets Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=opy:BankDepositSweepIncomeMember;us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-300 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-300 USD2023-07-28 · 12:12:03.000ZOpen filing evidence

Bank Deposit Sweep Income · Capital Markets Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=opy:BankDepositSweepIncomeMember;us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-300 USD20260731Open filing evidence
2026-01-01 – 2026-06-300 USD20260731Open filing evidence
2025-04-01 – 2025-06-300 USD20260731Open filing evidence
2025-01-01 – 2025-06-300 USD20260731Open filing evidence
2023-07-01 – 2023-09-300 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-09-300 USD2023-10-27 · 12:17:13.000ZOpen filing evidence

Bank Deposit Sweep Income · Private Client

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=opy:BankDepositSweepIncomeMember;us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-31104558000 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Bank Deposit Sweep Income · Private Client Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

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PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-3136685000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-07-01 – 2023-09-3042304000 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-09-30135273000 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-03-3148909000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence

Bank Deposit Sweep Income · Wealth Management Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

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PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-3024955000 USD20260731Open filing evidence
2026-01-01 – 2026-06-3051073000 USD20260731Open filing evidence
2025-04-01 – 2025-06-3028654000 USD20260731Open filing evidence
2025-01-01 – 2025-06-3058729000 USD20260731Open filing evidence

Bank Deposit Sweep Income · Corporate And Other

Product Or Service · Statement Business Segments

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PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-310 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Commissions From Sales And Trading · Operating Segments · Asset Management Segment

Product Or Service · Consolidation Items · Statement Business Segments

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PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2024-01-01 – 2024-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-04-01 – 2023-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence

Commissions From Sales And Trading · Operating Segments · Capital Markets Segment

Product Or Service · Consolidation Items · Statement Business Segments

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PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-3044174000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2024-01-01 – 2024-06-3087219000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-04-01 – 2023-06-3043154000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-3083201000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence

Commissions From Sales And Trading · Asset Management Segment

Product Or Service · Statement Business Segments

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PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-310 USD2023-04-28 · 12:54:55.000ZOpen filing evidence
2022-01-01 – 2022-12-310 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Commissions From Sales And Trading · Asset Management Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

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PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-310 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-07-01 – 2023-09-300 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-09-300 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-03-310 USD2024-04-26 · 13:24:16.000ZOpen filing evidence

Commissions From Sales And Trading · Capital Markets

Product Or Service · Statement Business Segments

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PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-31179694000 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Commissions From Sales And Trading · Capital Markets Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

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PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-3068209000 USD20260731Open filing evidence
2026-01-01 – 2026-06-30136150000 USD20260731Open filing evidence
2025-04-01 – 2025-06-3055217000 USD20260731Open filing evidence
2025-01-01 – 2025-06-30109165000 USD20260731Open filing evidence
2023-01-01 – 2023-12-31162706000 USD2024-03-01 · 15:22:18.000ZOpen filing evidence
2022-01-01 – 2022-12-31179694000 USD2024-03-01 · 15:22:18.000ZOpen filing evidence

Commissions From Sales And Trading · Private Client

Product Or Service · Statement Business Segments

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PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-31159441000 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Commissions From Sales And Trading · Private Client Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

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PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-3044766000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2024-01-01 – 2024-06-3089696000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-04-01 – 2023-06-3037666000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-3076590000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence

Commissions From Sales And Trading · Wealth Management Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

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PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-3050806000 USD20260731Open filing evidence
2026-01-01 – 2026-06-30102373000 USD20260731Open filing evidence
2025-04-01 – 2025-06-3047203000 USD20260731Open filing evidence
2025-01-01 – 2025-06-3095970000 USD20260731Open filing evidence

Commissions From Sales And Trading · Corporate And Other

Product Or Service · Statement Business Segments

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PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-3140000 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Investment Banking Advisory · Operating Segments · Asset Management Segment

Product Or Service · Consolidation Items · Statement Business Segments

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PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2024-01-01 – 2024-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-04-01 – 2023-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence

Investment Banking Advisory · Operating Segments · Capital Markets Segment

Product Or Service · Consolidation Items · Statement Business Segments

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PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-3012291000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
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2023-04-01 – 2023-06-3010945000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-3038882000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence

Investment Banking Advisory · Asset Management Segment

Product Or Service · Statement Business Segments

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PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-300 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-300 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-03-310 USD2023-04-28 · 12:54:55.000ZOpen filing evidence
2022-01-01 – 2022-12-310 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Investment Banking Advisory · Asset Management Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

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PeriodValueUnitFiledEvidence
2023-07-01 – 2023-09-300 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-09-300 USD2023-10-27 · 12:17:13.000ZOpen filing evidence

Investment Banking Advisory · Capital Markets

Product Or Service · Statement Business Segments

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PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-3127937000 USD2023-04-28 · 12:54:55.000ZOpen filing evidence
2022-01-01 – 2022-12-3184569000 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Investment Banking Advisory · Capital Markets Segment

Product Or Service · Statement Business Segments

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PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-3010945000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-3038882000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence

Investment Banking Advisory · Capital Markets Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

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PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-3058136000 USD20260731Open filing evidence
2026-01-01 – 2026-06-30121133000 USD20260731Open filing evidence
2025-04-01 – 2025-06-3022487000 USD20260731Open filing evidence
2025-01-01 – 2025-06-3048449000 USD20260731Open filing evidence
2023-01-01 – 2023-12-3169623000 USD2024-03-01 · 15:22:18.000ZOpen filing evidence
2023-07-01 – 2023-09-3018001000 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-09-3056883000 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2022-01-01 – 2022-12-3184569000 USD2024-03-01 · 15:22:18.000ZOpen filing evidence

Investment Banking Advisory · Private Client

Product Or Service · Statement Business Segments

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PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-31127000 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Investment Banking Advisory · Private Client Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

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PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
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2023-04-01 – 2023-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence

Investment Banking Advisory · Wealth Management Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

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PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-301000 USD20260731Open filing evidence
2026-01-01 – 2026-06-30268000 USD20260731Open filing evidence
2025-04-01 – 2025-06-300 USD20260731Open filing evidence
2025-01-01 – 2025-06-300 USD20260731Open filing evidence

Investment Banking Advisory · Corporate And Other

Product Or Service · Statement Business Segments

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PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-310 USD2023-04-28 · 12:54:55.000ZOpen filing evidence
2022-01-01 – 2022-12-310 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Investment Banking Capital Markets · Operating Segments · Asset Management Segment

Product Or Service · Consolidation Items · Statement Business Segments

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PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2024-01-01 – 2024-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-04-01 – 2023-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence

Investment Banking Capital Markets · Operating Segments · Capital Markets Segment

Product Or Service · Consolidation Items · Statement Business Segments

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PeriodValueUnitFiledEvidence
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2023-04-01 – 2023-06-307345000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
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Investment Banking Capital Markets · Asset Management Segment

Product Or Service · Statement Business Segments

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PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-300 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-300 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-03-310 USD2023-04-28 · 12:54:55.000ZOpen filing evidence

Investment Banking Capital Markets · Asset Management Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

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PeriodValueUnitFiledEvidence
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2023-01-01 – 2023-09-300 USD2023-10-27 · 12:17:13.000ZOpen filing evidence

Investment Banking Capital Markets · Capital Markets

Product Or Service · Statement Business Segments

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PeriodValueUnitFiledEvidence
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Investment Banking Capital Markets · Capital Markets Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

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PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-3022644000 USD20260731Open filing evidence
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2023-07-01 – 2023-09-3017295000 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-09-3032881000 USD2023-10-27 · 12:17:13.000ZOpen filing evidence

Investment Banking Capital Markets · Private Client Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

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PeriodValueUnitFiledEvidence
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Investment Banking Capital Markets · Wealth Management Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

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2025-04-01 – 2025-06-302758000 USD20260731Open filing evidence
2025-01-01 – 2025-06-305720000 USD20260731Open filing evidence

Mutual Fund Income · Operating Segments · Asset Management Segment

Product Or Service · Consolidation Items · Statement Business Segments

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PeriodValueUnitFiledEvidence
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2024-01-01 – 2024-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-04-01 – 2023-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence

Mutual Fund Income · Operating Segments · Capital Markets Segment

Product Or Service · Consolidation Items · Statement Business Segments

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2023-04-01 – 2023-06-301000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-305000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence

Mutual Fund Income · Asset Management Segment

Product Or Service · Statement Business Segments

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PeriodValueUnitFiledEvidence
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2023-01-01 – 2023-06-300 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-03-310 USD2023-04-28 · 12:54:55.000ZOpen filing evidence

Mutual Fund Income · Asset Management Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

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2023-01-01 – 2023-09-300 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2022-01-01 – 2022-12-310 USD2024-03-01 · 15:22:18.000ZOpen filing evidence

Mutual Fund Income · Capital Markets

Product Or Service · Statement Business Segments

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PeriodValueUnitFiledEvidence
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Mutual Fund Income · Capital Markets Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

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PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-301000 USD20260731Open filing evidence
2026-01-01 – 2026-06-302000 USD20260731Open filing evidence
2025-04-01 – 2025-06-301000 USD20260731Open filing evidence
2025-01-01 – 2025-06-302000 USD20260731Open filing evidence
2023-01-01 – 2023-12-317000 USD2024-03-01 · 15:22:18.000ZOpen filing evidence
2023-07-01 – 2023-09-301000 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-09-306000 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2022-01-01 – 2022-12-318000 USD2024-03-01 · 15:22:18.000ZOpen filing evidence

Mutual Fund Income · Private Client

Product Or Service · Statement Business Segments

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PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-3131173000 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Mutual Fund Income · Private Client Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

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PeriodValueUnitFiledEvidence
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2023-04-01 – 2023-06-307711000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-3015423000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2022-01-01 – 2022-12-3131173000 USD2024-03-01 · 15:22:18.000ZOpen filing evidence

Mutual Fund Income · Wealth Management Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=opy:MutualFundIncomeMember;us-gaap:StatementBusinessSegmentsAxis=opy:WealthManagementSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-308505000 USD20260731Open filing evidence
2026-01-01 – 2026-06-3017317000 USD20260731Open filing evidence
2025-04-01 – 2025-06-307585000 USD20260731Open filing evidence
2025-01-01 – 2025-06-3015729000 USD20260731Open filing evidence

Mutual Fund Income · Corporate And Other

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=opy:MutualFundIncomeMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-3126000 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Other · Operating Segments · Asset Management Segment

Product Or Service · Consolidation Items · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=opy:OtherMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember
PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-30-1000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2024-01-01 – 2024-06-30-1000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-04-01 – 2023-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-300 USD2024-07-26 · 12:51:29.000ZOpen filing evidence

Other · Operating Segments · Capital Markets Segment

Product Or Service · Consolidation Items · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=opy:OtherMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember
PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-30580000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2024-01-01 – 2024-06-30900000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-04-01 – 2023-06-30594000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-301100000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence

Other · Asset Management Segment

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=opy:OtherMember;us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-310 USD2023-04-28 · 12:54:55.000ZOpen filing evidence

Other · Asset Management Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=opy:OtherMember;us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-310 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-07-01 – 2023-09-300 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-09-300 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-03-310 USD2024-04-26 · 13:24:16.000ZOpen filing evidence

Other · Capital Markets

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=opy:OtherMember;us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-31506000 USD2023-04-28 · 12:54:55.000ZOpen filing evidence

Other · Capital Markets Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=opy:OtherMember;us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30874000 USD20260731Open filing evidence
2026-01-01 – 2026-06-30921000 USD20260731Open filing evidence
2025-04-01 – 2025-06-30547000 USD20260731Open filing evidence
2025-01-01 – 2025-06-301655000 USD20260731Open filing evidence
2023-01-01 – 2023-12-311436000 USD2024-03-01 · 15:22:18.000ZOpen filing evidence
2022-01-01 – 2022-12-312113000 USD2024-03-01 · 15:22:18.000ZOpen filing evidence

Other · Private Client

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=opy:OtherMember;us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-3116451000 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Other · Private Client Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=opy:OtherMember;us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-303168000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2024-01-01 – 2024-06-306584000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-04-01 – 2023-06-303284000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-307277000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence

Other · Wealth Management Segment · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=opy:OtherMember;us-gaap:StatementBusinessSegmentsAxis=opy:WealthManagementSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-304783000 USD20260731Open filing evidence
2026-01-01 – 2026-06-308994000 USD20260731Open filing evidence
2025-04-01 – 2025-06-303620000 USD20260731Open filing evidence
2025-01-01 – 2025-06-307969000 USD20260731Open filing evidence

Other · Corporate And Other

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=opy:OtherMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-3197000 USD2023-04-28 · 12:54:55.000ZOpen filing evidence
2022-01-01 – 2022-12-31510000 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Asset Management Segment

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-3022198000 RestatedUSD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-3046157000 RestatedUSD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-03-3123959000 RestatedUSD2023-04-28 · 12:54:55.000ZOpen filing evidence
2022-01-01 – 2022-12-3199242000 RestatedUSD2023-02-28 · 21:19:15.000ZOpen filing evidence

Asset Management Segment · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-3124928000 RestatedUSD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-01-01 – 2023-12-3188433000 RestatedUSD2024-03-01 · 15:22:18.000ZOpen filing evidence
2023-07-01 – 2023-09-3020830000 RestatedUSD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-09-3066987000 RestatedUSD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-03-3123959000 RestatedUSD2024-04-26 · 13:24:16.000ZOpen filing evidence
2022-01-01 – 2022-12-3199242000 RestatedUSD2024-03-01 · 15:22:18.000ZOpen filing evidence

Asset Management Segment · Operating Segments · Advisory Fees

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:AdvisoryFeesMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-3125960000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-01-01 – 2023-03-3123954000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence

Asset Management Segment · Operating Segments · Investment Banking Advisory

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:InvestmentBankingAdvisoryMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-310 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-01-01 – 2023-03-310 USD2024-04-26 · 13:24:16.000ZOpen filing evidence

Asset Management Segment · Operating Segments · Mutual Fund Income

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:MutualFundIncomeMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-310 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-01-01 – 2023-03-310 USD2024-04-26 · 13:24:16.000ZOpen filing evidence

Asset Management Segment · Advisory Fees

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember;srt:ProductOrServiceAxis=opy:AdvisoryFeesMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-3199224000 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Asset Management Segment · Advisory Fees · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember;srt:ProductOrServiceAxis=opy:AdvisoryFeesMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-3196259000 USD2024-03-01 · 15:22:18.000ZOpen filing evidence
2022-01-01 – 2022-12-3199224000 USD2024-03-01 · 15:22:18.000ZOpen filing evidence

Asset Management Segment · Bank Deposit Sweep Income

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember;srt:ProductOrServiceAxis=opy:BankDepositSweepIncomeMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-310 USD2023-04-28 · 12:54:55.000ZOpen filing evidence
2022-01-01 – 2022-12-310 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Asset Management Segment · Bank Deposit Sweep Income · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember;srt:ProductOrServiceAxis=opy:BankDepositSweepIncomeMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-310 USD2024-03-01 · 15:22:18.000ZOpen filing evidence
2022-01-01 – 2022-12-310 USD2024-03-01 · 15:22:18.000ZOpen filing evidence

Asset Management Segment · Commissions From Sales And Trading

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember;srt:ProductOrServiceAxis=opy:CommissionsFromSalesAndTradingMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-300 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-300 USD2023-07-28 · 12:12:03.000ZOpen filing evidence

Asset Management Segment · Commissions From Sales And Trading · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember;srt:ProductOrServiceAxis=opy:CommissionsFromSalesAndTradingMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-310 USD2024-03-01 · 15:22:18.000ZOpen filing evidence
2022-01-01 – 2022-12-310 USD2024-03-01 · 15:22:18.000ZOpen filing evidence

Asset Management Segment · Investment Banking Advisory · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember;srt:ProductOrServiceAxis=opy:InvestmentBankingAdvisoryMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-310 USD2024-03-01 · 15:22:18.000ZOpen filing evidence
2022-01-01 – 2022-12-310 USD2024-03-01 · 15:22:18.000ZOpen filing evidence

Asset Management Segment · Investment Banking Capital Markets

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember;srt:ProductOrServiceAxis=opy:InvestmentBankingCapitalMarketsMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-310 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Asset Management Segment · Investment Banking Capital Markets · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember;srt:ProductOrServiceAxis=opy:InvestmentBankingCapitalMarketsMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-310 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-01-01 – 2023-12-310 USD2024-03-01 · 15:22:18.000ZOpen filing evidence
2023-01-01 – 2023-03-310 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2022-01-01 – 2022-12-310 USD2024-03-01 · 15:22:18.000ZOpen filing evidence

Asset Management Segment · Mutual Fund Income

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember;srt:ProductOrServiceAxis=opy:MutualFundIncomeMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-310 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Asset Management Segment · Other

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember;srt:ProductOrServiceAxis=opy:OtherMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-300 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-300 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2022-01-01 – 2022-12-310 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Asset Management Segment · Other · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:AssetManagementSegmentMember;srt:ProductOrServiceAxis=opy:OtherMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-31-1000 USD2024-03-01 · 15:22:18.000ZOpen filing evidence
2022-01-01 – 2022-12-310 USD2024-03-01 · 15:22:18.000ZOpen filing evidence

Capital Markets

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-3190282000 RestatedUSD2023-04-28 · 12:54:55.000ZOpen filing evidence
2022-01-01 – 2022-12-31337821000 RestatedUSD2023-02-28 · 21:19:15.000ZOpen filing evidence

Capital Markets · Advisory Fees

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsMember;srt:ProductOrServiceAxis=opy:AdvisoryFeesMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-31117000 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Capital Markets · Bank Deposit Sweep Income

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsMember;srt:ProductOrServiceAxis=opy:BankDepositSweepIncomeMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-310 USD2023-04-28 · 12:54:55.000ZOpen filing evidence
2022-01-01 – 2022-12-310 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Capital Markets · Commissions From Sales And Trading

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsMember;srt:ProductOrServiceAxis=opy:CommissionsFromSalesAndTradingMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-3140047000 USD2023-04-28 · 12:54:55.000ZOpen filing evidence

Capital Markets · Investment Banking Capital Markets

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsMember;srt:ProductOrServiceAxis=opy:InvestmentBankingCapitalMarketsMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-3133481000 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Capital Markets · Mutual Fund Income

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsMember;srt:ProductOrServiceAxis=opy:MutualFundIncomeMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-318000 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Capital Markets · Other

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsMember;srt:ProductOrServiceAxis=opy:OtherMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-312113000 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Capital Markets Segment

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-3079582000 RestatedUSD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-30169864000 RestatedUSD2023-07-28 · 12:12:03.000ZOpen filing evidence

Capital Markets Segment · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-30114032000 RestatedUSD20261030Open filing evidence
2026-01-01 – 2026-09-30482317000 RestatedUSD20261030Open filing evidence
2025-07-01 – 2025-09-30162145000 RestatedUSD20261030Open filing evidence
2025-01-01 – 2025-09-30408387000 RestatedUSD20261030Open filing evidence
2024-01-01 – 2024-03-31112083000 RestatedUSD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-01-01 – 2023-12-31345897000 RestatedUSD2024-03-01 · 15:22:18.000ZOpen filing evidence
2023-07-01 – 2023-09-3094576000 RestatedUSD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-09-30264440000 RestatedUSD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-03-3190282000 RestatedUSD2024-04-26 · 13:24:16.000ZOpen filing evidence
2022-01-01 – 2022-12-31337821000 RestatedUSD2024-03-01 · 15:22:18.000ZOpen filing evidence

Capital Markets Segment · Operating Segments · Advisory Fees

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:AdvisoryFeesMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-310 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-01-01 – 2023-03-310 USD2024-04-26 · 13:24:16.000ZOpen filing evidence

Capital Markets Segment · Operating Segments · Investment Banking Advisory

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:InvestmentBankingAdvisoryMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-3131868000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-01-01 – 2023-03-3127937000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence

Capital Markets Segment · Operating Segments · Mutual Fund Income

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:MutualFundIncomeMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-311000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-01-01 – 2023-03-314000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence

Capital Markets Segment · Advisory Fees · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember;srt:ProductOrServiceAxis=opy:AdvisoryFeesMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-300 USD20261030Open filing evidence
2026-01-01 – 2026-09-300 USD20261030Open filing evidence
2025-07-01 – 2025-09-300 USD20261030Open filing evidence
2025-01-01 – 2025-09-300 USD20261030Open filing evidence

Capital Markets Segment · Bank Deposit Sweep Income · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember;srt:ProductOrServiceAxis=opy:BankDepositSweepIncomeMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-300 USD20261030Open filing evidence
2026-01-01 – 2026-09-300 USD20261030Open filing evidence
2025-07-01 – 2025-09-300 USD20261030Open filing evidence
2025-01-01 – 2025-09-300 USD20261030Open filing evidence
2024-01-01 – 2024-03-310 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-01-01 – 2023-12-310 USD2024-03-01 · 15:22:18.000ZOpen filing evidence
2023-01-01 – 2023-03-310 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2022-01-01 – 2022-12-310 USD2024-03-01 · 15:22:18.000ZOpen filing evidence

Capital Markets Segment · Commissions From Sales And Trading

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember;srt:ProductOrServiceAxis=opy:CommissionsFromSalesAndTradingMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-3043154000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-3083201000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence

Capital Markets Segment · Commissions From Sales And Trading · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember;srt:ProductOrServiceAxis=opy:CommissionsFromSalesAndTradingMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-3062609000 USD20261030Open filing evidence
2026-01-01 – 2026-09-30198760000 USD20261030Open filing evidence
2025-07-01 – 2025-09-3058807000 USD20261030Open filing evidence
2025-01-01 – 2025-09-30167973000 USD20261030Open filing evidence
2024-01-01 – 2024-03-3143045000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-07-01 – 2023-09-3039539000 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-09-30122740000 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-03-3140047000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence

Capital Markets Segment · Investment Banking Advisory · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember;srt:ProductOrServiceAxis=opy:InvestmentBankingAdvisoryMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-3020033000 USD20261030Open filing evidence
2026-01-01 – 2026-09-30141167000 USD20261030Open filing evidence
2025-07-01 – 2025-09-3021865000 USD20261030Open filing evidence
2025-01-01 – 2025-09-3070315000 USD20261030Open filing evidence

Capital Markets Segment · Investment Banking Capital Markets

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember;srt:ProductOrServiceAxis=opy:InvestmentBankingCapitalMarketsMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-307345000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-3015586000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence

Capital Markets Segment · Investment Banking Capital Markets · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember;srt:ProductOrServiceAxis=opy:InvestmentBankingCapitalMarketsMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-309447000 USD20261030Open filing evidence
2026-01-01 – 2026-09-3062610000 USD20261030Open filing evidence
2025-07-01 – 2025-09-3052143000 USD20261030Open filing evidence
2025-01-01 – 2025-09-3089129000 USD20261030Open filing evidence
2024-01-01 – 2024-03-3115627000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-01-01 – 2023-12-3140499000 USD2024-03-01 · 15:22:18.000ZOpen filing evidence
2023-01-01 – 2023-03-318241000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2022-01-01 – 2022-12-3133481000 USD2024-03-01 · 15:22:18.000ZOpen filing evidence

Capital Markets Segment · Mutual Fund Income

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember;srt:ProductOrServiceAxis=opy:MutualFundIncomeMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-301000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-305000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence

Capital Markets Segment · Mutual Fund Income · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember;srt:ProductOrServiceAxis=opy:MutualFundIncomeMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-301000 USD20261030Open filing evidence
2026-01-01 – 2026-09-303000 USD20261030Open filing evidence
2025-07-01 – 2025-09-301000 USD20261030Open filing evidence
2025-01-01 – 2025-09-303000 USD20261030Open filing evidence

Capital Markets Segment · Other

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember;srt:ProductOrServiceAxis=opy:OtherMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-30594000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-301100000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence

Capital Markets Segment · Other · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CapitalMarketsSegmentMember;srt:ProductOrServiceAxis=opy:OtherMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-30901000 USD20261030Open filing evidence
2026-01-01 – 2026-09-301821000 USD20261030Open filing evidence
2025-07-01 – 2025-09-3084000 USD20261030Open filing evidence
2025-01-01 – 2025-09-301737000 USD20261030Open filing evidence
2024-01-01 – 2024-03-31320000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-07-01 – 2023-09-30311000 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-09-301411000 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-03-31506000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence

Corporate And Other Segment

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:CorporateAndOtherSegmentMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-314017000 USD2023-04-28 · 12:54:55.000ZOpen filing evidence
2022-01-01 – 2022-12-31-1802000 USD2023-02-28 · 21:19:15.000ZOpen filing evidence

Private Client

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-31203421000 RestatedUSD2023-04-28 · 12:54:55.000ZOpen filing evidence
2022-01-01 – 2022-12-31675680000 RestatedUSD2023-02-28 · 21:19:15.000ZOpen filing evidence

Private Client · Advisory Fees

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientMember;srt:ProductOrServiceAxis=opy:AdvisoryFeesMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-3176583000 USD2023-04-28 · 12:54:55.000ZOpen filing evidence

Private Client · Bank Deposit Sweep Income

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientMember;srt:ProductOrServiceAxis=opy:BankDepositSweepIncomeMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-3148909000 USD2023-04-28 · 12:54:55.000ZOpen filing evidence

Private Client · Commissions From Sales And Trading

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientMember;srt:ProductOrServiceAxis=opy:CommissionsFromSalesAndTradingMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-3138924000 USD2023-04-28 · 12:54:55.000ZOpen filing evidence

Private Client · Investment Banking Advisory

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientMember;srt:ProductOrServiceAxis=opy:InvestmentBankingAdvisoryMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-310 USD2023-04-28 · 12:54:55.000ZOpen filing evidence

Private Client · Investment Banking Capital Markets

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientMember;srt:ProductOrServiceAxis=opy:InvestmentBankingCapitalMarketsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-311787000 USD2023-04-28 · 12:54:55.000ZOpen filing evidence

Private Client · Mutual Fund Income

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientMember;srt:ProductOrServiceAxis=opy:MutualFundIncomeMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-317712000 USD2023-04-28 · 12:54:55.000ZOpen filing evidence

Private Client · Other

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientMember;srt:ProductOrServiceAxis=opy:OtherMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-313993000 USD2023-04-28 · 12:54:55.000ZOpen filing evidence

Private Client Segment

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-30201245000 RestatedUSD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-30404666000 RestatedUSD2023-07-28 · 12:12:03.000ZOpen filing evidence

Private Client Segment · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-30208701000 RestatedUSD2024-07-26 · 12:51:29.000ZOpen filing evidence
2024-01-01 – 2024-06-30421734000 RestatedUSD2024-07-26 · 12:51:29.000ZOpen filing evidence
2024-01-01 – 2024-03-31213033000 RestatedUSD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-01-01 – 2023-12-31801754000 RestatedUSD2024-03-01 · 15:22:18.000ZOpen filing evidence
2023-07-01 – 2023-09-30193254000 RestatedUSD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-09-30597920000 RestatedUSD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-04-01 – 2023-06-30201245000 RestatedUSD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-30404666000 RestatedUSD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-03-31203421000 RestatedUSD2024-04-26 · 13:24:16.000ZOpen filing evidence

Private Client Segment · Operating Segments · Advisory Fees

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:AdvisoryFeesMember
PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-3090947000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2024-01-01 – 2024-06-30179823000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2024-01-01 – 2024-03-3188876000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-04-01 – 2023-06-3078811000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-30155394000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-03-3176583000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence

Private Client Segment · Operating Segments · Bank Deposit Sweep Income

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:BankDepositSweepIncomeMember
PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-3034847000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2024-01-01 – 2024-06-3071532000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-04-01 – 2023-06-3044060000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence
2023-01-01 – 2023-06-3092969000 USD2024-07-26 · 12:51:29.000ZOpen filing evidence

Private Client Segment · Operating Segments · Investment Banking Advisory

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:InvestmentBankingAdvisoryMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-3121000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-01-01 – 2023-03-310 USD2024-04-26 · 13:24:16.000ZOpen filing evidence

Private Client Segment · Operating Segments · Mutual Fund Income

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=opy:MutualFundIncomeMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-317864000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-01-01 – 2023-03-317712000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence

Private Client Segment · Advisory Fees

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember;srt:ProductOrServiceAxis=opy:AdvisoryFeesMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-3078811000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-30155394000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence

Private Client Segment · Advisory Fees · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember;srt:ProductOrServiceAxis=opy:AdvisoryFeesMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-31319191000 USD2024-03-01 · 15:22:18.000ZOpen filing evidence

Private Client Segment · Bank Deposit Sweep Income

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember;srt:ProductOrServiceAxis=opy:BankDepositSweepIncomeMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-3044060000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-3092969000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence

Private Client Segment · Bank Deposit Sweep Income · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember;srt:ProductOrServiceAxis=opy:BankDepositSweepIncomeMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-31172807000 USD2024-03-01 · 15:22:18.000ZOpen filing evidence

Private Client Segment · Commissions From Sales And Trading

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember;srt:ProductOrServiceAxis=opy:CommissionsFromSalesAndTradingMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-3037666000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-3076590000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence

Private Client Segment · Commissions From Sales And Trading · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember;srt:ProductOrServiceAxis=opy:CommissionsFromSalesAndTradingMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-3144930000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-01-01 – 2023-12-31155039000 USD2024-03-01 · 15:22:18.000ZOpen filing evidence
2023-07-01 – 2023-09-3036176000 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-09-30112766000 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-03-3138924000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence

Private Client Segment · Investment Banking Advisory

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember;srt:ProductOrServiceAxis=opy:InvestmentBankingAdvisoryMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-300 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-300 USD2023-07-28 · 12:12:03.000ZOpen filing evidence

Private Client Segment · Investment Banking Advisory · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember;srt:ProductOrServiceAxis=opy:InvestmentBankingAdvisoryMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-310 USD2024-03-01 · 15:22:18.000ZOpen filing evidence
2023-07-01 – 2023-09-300 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-09-300 USD2023-10-27 · 12:17:13.000ZOpen filing evidence

Private Client Segment · Investment Banking Capital Markets

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember;srt:ProductOrServiceAxis=opy:InvestmentBankingCapitalMarketsMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-301688000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-303475000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence

Private Client Segment · Investment Banking Capital Markets · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember;srt:ProductOrServiceAxis=opy:InvestmentBankingCapitalMarketsMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-313021000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-01-01 – 2023-12-317543000 USD2024-03-01 · 15:22:18.000ZOpen filing evidence
2023-01-01 – 2023-03-311787000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence

Private Client Segment · Mutual Fund Income

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember;srt:ProductOrServiceAxis=opy:MutualFundIncomeMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-307711000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-3015423000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence

Private Client Segment · Other

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember;srt:ProductOrServiceAxis=opy:OtherMember
PeriodValueUnitFiledEvidence
2023-04-01 – 2023-06-303284000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence
2023-01-01 – 2023-06-307277000 USD2023-07-28 · 12:12:03.000ZOpen filing evidence

Private Client Segment · Other · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:PrivateClientSegmentMember;srt:ProductOrServiceAxis=opy:OtherMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-313416000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence
2023-01-01 – 2023-12-3115500000 USD2024-03-01 · 15:22:18.000ZOpen filing evidence
2023-07-01 – 2023-09-303236000 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-09-3010513000 USD2023-10-27 · 12:17:13.000ZOpen filing evidence
2023-01-01 – 2023-03-313993000 USD2024-04-26 · 13:24:16.000ZOpen filing evidence

Wealth Management Segment · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:WealthManagementSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-30266171000 RestatedUSD20261030Open filing evidence
2026-01-01 – 2026-09-30792522000 RestatedUSD20261030Open filing evidence
2025-07-01 – 2025-09-30259726000 RestatedUSD20261030Open filing evidence
2025-01-01 – 2025-09-30748133000 RestatedUSD20261030Open filing evidence

Wealth Management Segment · Advisory Fees · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:WealthManagementSegmentMember;srt:ProductOrServiceAxis=opy:AdvisoryFeesMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-30154937000 USD20261030Open filing evidence
2026-01-01 – 2026-09-30442180000 USD20261030Open filing evidence
2025-07-01 – 2025-09-30134397000 USD20261030Open filing evidence
2025-01-01 – 2025-09-30388799000 USD20261030Open filing evidence

Wealth Management Segment · Bank Deposit Sweep Income · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:WealthManagementSegmentMember;srt:ProductOrServiceAxis=opy:BankDepositSweepIncomeMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-3025556000 USD20261030Open filing evidence
2026-01-01 – 2026-09-3076629000 USD20261030Open filing evidence
2025-07-01 – 2025-09-3028349000 USD20261030Open filing evidence
2025-01-01 – 2025-09-3087078000 USD20261030Open filing evidence

Wealth Management Segment · Commissions From Sales And Trading · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:WealthManagementSegmentMember;srt:ProductOrServiceAxis=opy:CommissionsFromSalesAndTradingMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-3044225000 USD20261030Open filing evidence
2026-01-01 – 2026-09-30146598000 USD20261030Open filing evidence
2025-07-01 – 2025-09-3053511000 USD20261030Open filing evidence
2025-01-01 – 2025-09-30149481000 USD20261030Open filing evidence

Wealth Management Segment · Investment Banking Advisory · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:WealthManagementSegmentMember;srt:ProductOrServiceAxis=opy:InvestmentBankingAdvisoryMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-30427000 USD20261030Open filing evidence
2026-01-01 – 2026-09-30696000 USD20261030Open filing evidence
2025-07-01 – 2025-09-30438000 USD20261030Open filing evidence
2025-01-01 – 2025-09-30438000 USD20261030Open filing evidence

Wealth Management Segment · Investment Banking Capital Markets · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:WealthManagementSegmentMember;srt:ProductOrServiceAxis=opy:InvestmentBankingCapitalMarketsMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-303287000 USD20261030Open filing evidence
2026-01-01 – 2026-09-3010773000 USD20261030Open filing evidence
2025-07-01 – 2025-09-303042000 USD20261030Open filing evidence
2025-01-01 – 2025-09-308762000 USD20261030Open filing evidence

Wealth Management Segment · Mutual Fund Income · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:WealthManagementSegmentMember;srt:ProductOrServiceAxis=opy:MutualFundIncomeMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-309046000 USD20261030Open filing evidence
2026-01-01 – 2026-09-3026363000 USD20261030Open filing evidence
2025-07-01 – 2025-09-308350000 USD20261030Open filing evidence
2025-01-01 – 2025-09-3024079000 USD20261030Open filing evidence

Wealth Management Segment · Other · Operating Segments

Statement Business Segments · Product Or Service · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=opy:WealthManagementSegmentMember;srt:ProductOrServiceAxis=opy:OtherMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-304633000 USD20261030Open filing evidence
2026-01-01 – 2026-09-3013627000 USD20261030Open filing evidence
2025-07-01 – 2025-09-307809000 USD20261030Open filing evidence
2025-01-01 – 2025-09-3015779000 USD20261030Open filing evidence

Corporate And Other

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-314017000 RestatedUSD2023-04-28 · 12:54:55.000ZOpen filing evidence

Corporate And Other · Bank Deposit Sweep Income

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember;srt:ProductOrServiceAxis=opy:BankDepositSweepIncomeMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-310 USD2023-04-28 · 12:54:55.000ZOpen filing evidence

Corporate And Other · Commissions From Sales And Trading

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember;srt:ProductOrServiceAxis=opy:CommissionsFromSalesAndTradingMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-316000 USD2023-04-28 · 12:54:55.000ZOpen filing evidence

Corporate And Other · Investment Banking Capital Markets

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember;srt:ProductOrServiceAxis=opy:InvestmentBankingCapitalMarketsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-310 USD2023-04-28 · 12:54:55.000ZOpen filing evidence

Corporate And Other · Mutual Fund Income

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember;srt:ProductOrServiceAxis=opy:MutualFundIncomeMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-314000 USD2023-04-28 · 12:54:55.000ZOpen filing evidence