XML 104 R90.htm IDEA: XBRL DOCUMENT
v3.22.4

Regulatory requirements (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 USD ($) | Jan. 31, 2022 GBP (£) | Jan. 31, 2022 EUR (€)
Oppenheimer |  |  |
Regulatory Capital Requirements [Line Items] |  |  |
Required percentage of net capital to aggregate customer-related debit items (as a percent) | 2.00% |  |
Net capital | $ 432,500,000 |  |
Aggregate indebtedness (as a percent) | 35.78% |  |
Excess capital | $ 408,300,000 |  |
Freedom |  |  |
Regulatory Capital Requirements [Line Items] |  |  |
Net capital | $ 4,400,000 |  |
Aggregate indebtedness (as a percent) | 6.67% |  |
Freedom maintain net capital equal to the greater | $ 100,000 |  |
Net capital in excess of minimum required | $ 4,300,000 |  |
Oppenheimer Europe Ltd |  |  |
Regulatory Capital Requirements [Line Items] |  |  |
Regulatory capital required to be maintained |  | £ 750,000 | € 730,000
Oppenheimer Europe Ltd | Basel Three New Requirements |  |  |
Regulatory Capital Requirements [Line Items] |  |  |
Common Equity Tier 1 ratio (as a percent) | 157.00% |  |
Common Equity Tier 1 ratio required (as a percent) | 56.00% |  |
Tier 1 Capital ratio (as a percent) | 157.00% |  |
Tier 1 Capital ratio required (as a percent) | 75.00% |  |
Total Capital ratio (as a percent) | 209.00% |  |
Total Capital ratio required (as a percent) | 100.00% |  |
Oppenheimer Investments Asia Ltd. |  |  |
Regulatory Capital Requirements [Line Items] |  |  |
Regulatory capital required to be maintained | $ 383,963 |  |
Regulatory capital | 4,900,000 |  |
Excess Liquid Capital under Hong Kong SFC rules | $ 4,500,000 |  |

X
- Definition Banking Regulation, Common Equity Tier One Ratio + References No definition available. + Details
Name: | opy_BankingRegulationCommonEquityTierOneRatio
Namespace Prefix: | opy_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Broker-Dealer, Minimum Net Capital Required, Parent, Alternative Method, Percenrage + References No definition available. + Details
Name: | opy_BrokerDealerMinimumNetCapitalRequiredParentAlternativeMethodPercenrage
Namespace Prefix: | opy_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Common Equity Tier One Ratio required for capital adequacy purposes under the Capital Requirements Directive (DRD IV) in the European Union. + References No definition available. + Details
Name: | opy_CommonEquityTierOneRatioRequiredUnderCrdFourth
Namespace Prefix: | opy_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Excess Liquid Capital under Hong Kong SFC Rules + References No definition available. + Details
Name: | opy_ExcessLiquidCapitalunderHongKongSFCRules
Namespace Prefix: | opy_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Liquid Capital under Hong Kong SFC Rules + References No definition available. + Details
Name: | opy_LiquidCapitalunderHongKongSFCRules
Namespace Prefix: | opy_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percentage of net capital to aggregate indebtedness. + References No definition available. + Details
Name: | opy_PercentageOfNetCapitalToAggregateIndebtedness
Namespace Prefix: | opy_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tier One Capital Ratio calculated for capital adequacy purposes under the Capital Requirements Directive (DRD IV) in the European Union. + References No definition available. + Details
Name: | opy_TierOneCapitalRatioCalculatedUnderCrdFourth
Namespace Prefix: | opy_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Tier One Capital Ratio required for capital adequacy purposes under the Capital Requirements Directive (DRD IV) in the European Union. + References No definition available. + Details
Name: | opy_TierOneCapitalRatioRequiredUnderCrdFourth
Namespace Prefix: | opy_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Total Capital Ratio calculated for capital adequacy purposes under the Capital Requirements Directive (DRD IV) in the European Union. + References No definition available. + Details
Name: | opy_TotalCapitalRatioCalculatedUnderCrdFourth
Namespace Prefix: | opy_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Total Capital Ratio Required for capital adequacy purposes under the Capital Requirements Directive (DRD IV) in the European Union. + References No definition available. + Details
Name: | opy_TotalCapitalRatioRequiredUnderCrdFourth
Namespace Prefix: | opy_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of net capital in excess of minimum required net capital, calculated under Alternative Standard. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Rule 15c3-1 -Number 240 -Section 15c3-1 + Details
Name: | srt_AlternativeExcessNetCapital
Namespace Prefix: | srt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of net capital in excess of minimum required net capital, calculated under Aggregate Indebtedness Standard. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Rule 15c3-1 -Number 240 -Section 15c3-1 + Details
Name: | srt_ExcessNetCapitalAt1500Percent
Namespace Prefix: | srt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Minimum amount of net capital required to be maintained by broker-dealer and its subsidiary, calculated under Aggregate Indebtedness Standard. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Rule 15c3-1 -Number 240 -Section 15c3-1 + Details
Name: | srt_MinimumNetCapitalRequired1
Namespace Prefix: | srt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Minimum amount of net capital required to be maintained by broker-dealer subsidiary to engage in security transaction, calculated under Aggregate Indebtedness Standard. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Rule 15c3-1 -Number 240 -Section 15c3-1 + Details
Name: | srt_MinimumNetCapitalRequiredForBrokerDealerSubsidiary1
Namespace Prefix: | srt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of net capital of broker-dealer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Rule 15c3-1 -Number 240 -Section 15c3-1 + Details
Name: | srt_NetCapital
Namespace Prefix: | srt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=opy_OppenheimerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=opy_FreedomMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=opy_OppenheimerEuropeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | opy_RegulatoryCapitalRequirementAxis=opy_BaselThreeNewRequirementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=opy_OppenheimerInvestmentsAsiaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |