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Contingencies - Narrative (Details) $ in Millions | Sep. 30, 2023 USD ($) case loan | Sep. 30, 2022 USD ($) loan
--- | --- | ---
Loss Contingency [Abstract] |  |
Accrued penalty | $ 9.8 |
Number of cases | case | 5 |
Warranty repurchase demands unpaid principal balance | $ 47.7 | $ 53.3
Warranty repurchase demands number of loans | loan | 176 | 280

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- Definition Number Of Cases + References No definition available. + Details
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Namespace Prefix: | ocn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Represents the number of loans related to outstanding representation and warranty repurchase demands as of the end of the period. + References No definition available. + Details
Name: | ocn_WarrantyRepurchaseDemandsNumberOfLoans
Namespace Prefix: | ocn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Represents unpaid principal balance related to outstanding representation and warranty repurchase demands as of the end of the period. + References No definition available. + Details
Name: | ocn_WarrantyRepurchaseDemandsUnpaidPrincipalBalance
Namespace Prefix: | ocn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_LossContingencyAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of loss contingency liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14615-108349 + Details
Name: | us-gaap_LossContingencyAccrualAtCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant