XML 45 R59.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Contingencies - Narrative (Details) (USD $) | 3 Months Ended | 6 Months Ended | 0 Months Ended
--- | --- | --- | ---
Mar. 31, 2015 | Jun. 30, 2014 | Feb. 17, 2015 | Jan. 27, 2015 | Feb. 09, 2015 | Mar. 26, 2015 | Jan. 27, 2017
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Litigation Settlement, Expense |  | $ 20,000,000 us-gaap_LitigationSettlementExpense |  |  |  |  |
Minimum estimated range of aggregate loss for legal proceedings | 0 us-gaap_LossContingencyRangeOfPossibleLossMinimum |  |  |  |  |  |
Maximum estimated range of aggregate loss for legal proceedings | 34,000,000 us-gaap_LossContingencyRangeOfPossibleLossMaximum |  |  |  |  |  |
Company purchased and holds auction rate securities | 105,300,000 opy_AmountOfAuctionRateSecuritiesFirmPurchasedAndHold |  |  |  |  |  |
Amount of ARS committed to purchase from clients | 14,200,000 opy_AuctionRateSecuritiesCommittedToPurchaseFromClient |  |  |  |  |  |
Purchase Commitments Outstanding, Auction Rate Securities Related to Settlements with Regulators | 2,000,000 opy_PurchaseCommitmentsOutstandingAuctionRateSecuritiesRelatedtoSettlementswithRegulators |  |  |  |  |  |
Eligible investor subject to future buyback potential additional losses related to valuation adjustments | 97,400,000 opy_EligibleInvestorSubjectToFutureBuybackPrincipalValue |  |  |  |  |  |
Eligible Investor Subject To Future Buyback Potential Additional Losses Related To Valuation Adjustments | 0 opy_EligibleInvestorSubjectToFutureBuybackPotentialAdditionalLossesRelatedToValuationAdjustments |  |  |  |  |  |
Period of auction rates security to be purchased from rendering of the award | 30 days |  |  |  |  |  |
SEC [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Litigation Settlement, Amount |  |  |  | 10,000,000 us-gaap_LitigationSettlementAmount / us-gaap_LitigationCaseAxis = opy_SECMember |  |  |
Payments for Legal Settlements |  |  | 5,000,000 us-gaap_PaymentsForLegalSettlements / us-gaap_LitigationCaseAxis = opy_SECMember |  |  |  |
SEC [Member] | Disgorgement [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Litigation Settlement, Amount |  |  |  | 4,200,000 us-gaap_LitigationSettlementAmount / us-gaap_LitigationCaseAxis = opy_SECMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = opy_DisgorgementMember |  |  |
SEC [Member] | Prejudgment Interest [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Litigation Settlement, Amount |  |  |  | 753,500 us-gaap_LitigationSettlementAmount / us-gaap_LitigationCaseAxis = opy_SECMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = opy_PrejudgmentInterestMember |  |  |
SEC [Member] | Civil Penalties [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Litigation Settlement, Amount |  |  |  | 5,100,000 us-gaap_LitigationSettlementAmount / us-gaap_LitigationCaseAxis = opy_SECMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = opy_CivilPenaltiesMember |  |  |
United States Department of the Treasury [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Litigation Settlement, Amount |  |  |  | 10,000,000 us-gaap_LitigationSettlementAmount / us-gaap_LitigationCaseAxis = opy_UnitedStatesDepartmentoftheTreasuryMember |  |  |
Payments for Legal Settlements |  |  |  |  | 5,000,000 us-gaap_PaymentsForLegalSettlements / us-gaap_LitigationCaseAxis = opy_UnitedStatesDepartmentoftheTreasuryMember |  |
FINRA [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Litigation Settlement, Amount |  |  |  |  |  | 3,800,000 us-gaap_LitigationSettlementAmount / us-gaap_LitigationCaseAxis = exch_FINR |
Forecast [Member] | SEC [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Payments for Legal Settlements |  |  |  |  |  |  | $ 5,000,000 us-gaap_PaymentsForLegalSettlements / us-gaap_LitigationCaseAxis = opy_SECMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioForecastMember

X
- Definition The total amount of ARS the firm purchased and hold. + References No definition available. + Details
Name: | opy_AmountOfAuctionRateSecuritiesFirmPurchasedAndHold
Namespace Prefix: | opy_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of ARS the firm committed to purchase from clients. + References No definition available. + Details
Name: | opy_AuctionRateSecuritiesCommittedToPurchaseFromClient
Namespace Prefix: | opy_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Eligible investor subject to future buyback potential additional losses related to valuation adjustments. + References No definition available. + Details
Name: | opy_EligibleInvestorSubjectToFutureBuybackPotentialAdditionalLossesRelatedToValuationAdjustments
Namespace Prefix: | opy_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Eligible Investor Subject To Future Buyback Principal Value + References No definition available. + Details
Name: | opy_EligibleInvestorSubjectToFutureBuybackPrincipalValue
Namespace Prefix: | opy_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Period of auction rates security to be purchased from rendering of award. + References No definition available. + Details
Name: | opy_PeriodOfAuctionRatesSecurityToBePurchasedFromRenderingOfAward
Namespace Prefix: | opy_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Purchase Commitments Outstanding, Auction Rate Securities Related to Settlements with Regulators + References No definition available. + Details
Name: | opy_PurchaseCommitmentsOutstandingAuctionRateSecuritiesRelatedtoSettlementswithRegulators
Namespace Prefix: | opy_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of judgment or settlement awarded to (against) the entity in respect of litigation. + References No definition available. + Details
Name: | us-gaap_LitigationSettlementAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees. + References No definition available. + Details
Name: | us-gaap_LitigationSettlementExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The estimated maximum amount of possible loss from the contingency. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349 + Details
Name: | us-gaap_LossContingencyRangeOfPossibleLossMaximum
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The estimated minimum amount of possible loss from the contingency. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349 + Details
Name: | us-gaap_LossContingencyRangeOfPossibleLossMinimum
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of cash paid for the settlement of litigation or for other legal issues during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3536-108585 + Details
Name: | us-gaap_PaymentsForLegalSettlements
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_LitigationCaseAxis=exch_FINR
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LitigationCaseAxis=opy_SECMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LitigationCaseAxis=opy_UnitedStatesDepartmentoftheTreasuryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementScenarioAxis=us-gaap_ScenarioForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |