XML 124 R85.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Employee Compensation Plans - Schedule of Stock Compensation Assumptions Used (Details) - Stock Appreciation Rights (SARs) [Member] | Dec. 31, 2018 USD ($)
--- | ---
January Five Two Thousand Eighteen [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Expected term | 4 years
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Fair Value Assumptions Expected Volatility Rate | 33.027%
Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Risk Free Interest Rate | 2.49%
Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Expected Dividend Payments | $ 0.44
January Six Two Thousand Seventeen [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Expected term | 3 years
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Fair Value Assumptions Expected Volatility Rate | 29.016%
Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Risk Free Interest Rate | 2.462%
Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Expected Dividend Payments | $ 0.44
January Six Two Thousand Sixteen |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Expected term | 2 years
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Fair Value Assumptions Expected Volatility Rate | 26.671%
Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Risk Free Interest Rate | 2.483%
Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Expected Dividend Payments | $ 0.44
January Nine Two Thousand Fifteen [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Expected term | 1 year
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Fair Value Assumptions Expected Volatility Rate | 27.634%
Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Risk Free Interest Rate | 2.587%
Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Expected Dividend Payments | $ 0.44
January Fourteen Two Thousand Fourteen [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Expected term | 13 days
Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Fair Value Assumptions Expected Volatility Rate | 28.21%
Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Risk Free Interest Rate | 1.213%
Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Expected Dividend Payments | $ 0.44

X
- Definition Share Based Compensation Arrangement By Cash Payment Award Stock Appreciation Rights Fair Value Assumptions Expected Volatility Rate + References No definition available. + Details
Name: | opy_ShareBasedCompensationArrangementByCashPaymentAwardStockAppreciationRightsFairValueAssumptionsExpectedVolatilityRate
Namespace Prefix: | opy_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The remaining contractual term of the stock appreciation rights outstanding by grant date as of the balance sheet date. + References No definition available. + Details
Name: | opy_ShareBasedCompensationArrangementByCashPaymentAwardStockAppreciationRightsRemainingContractualLife
Namespace Prefix: | opy_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Expected Dividend Payments + References No definition available. + Details
Name: | opy_SharebasedCompensationArrangementbyCashPaymentAwardStockAppreciationRightsFairValueAssumptionsExpectedDividendPayments
Namespace Prefix: | opy_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Share-based Compensation Arrangement by Cash Payment Award Stock Appreciation Rights, Fair Value Assumptions, Risk Free Interest Rate + References No definition available. + Details
Name: | opy_SharebasedCompensationArrangementbyCashPaymentAwardStockAppreciationRightsFairValueAssumptionsRiskFreeInterestRate
Namespace Prefix: | opy_
Data Type: | num:percentItemType
Balance Type: | na
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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AwardDateAxis=opy_JanuaryFiveTwoThousandEighteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_StockAppreciationRightsSARSMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardDateAxis=opy_JanuarySixTwoThousandSeventeenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardDateAxis=opy_JanuarySixTwoThousandSixteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardDateAxis=opy_JanuaryNineTwoThousandFifteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardDateAxis=opy_JanuaryFourteenTwoThousandFourteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |