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Receivables - Schedule of Receivables (Footnote) (Detail) - USD ($) $ in Millions | Sep. 30, 2016 | Dec. 31, 2015
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Receivables [Abstract] |  |
Servicing receivables, allowance for losses | $ 46.4 | $ 20.6

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- Definition Servicing Receivables, Allowance For Losses + References No definition available. + Details
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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_ReceivablesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration