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Business Segment Reporting - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2017
Lending [Member] |  |
Segment Reporting Information [Line Items] |  |
Decrease in income before income taxes | $ (2.5) | $ (5.1)

X
- Definition Decrease in income before taxes as a result of movement of certain functions which had been associated with corporate cost centers to Lending and Servicing segments. + References No definition available. + Details
Name: | ocn_DecreaseInIncomeBeforeIncomeTaxes
Namespace Prefix: | ocn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=ocn_LendingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |