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Business Acquisitions - Schedule of Carrying Amounts of Major Classes of Assets and Liabilities Related to Discontinued Operations (Footnote) (Details) $ in Millions | Dec. 31, 2018 USD ($)
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Discontinued Operations and Disposal Groups [Abstract] |
Exit cost liability | $ 14.9

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- Definition Amount classified as exit cost liabilities attributable to disposal group held for sale or disposed of. + References No definition available. + Details
Name: | ocn_DisposalGroupIncludingDiscontinuedOperationExitCostLiabilities
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_DiscontinuedOperationsAndDisposalGroupsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration