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Receivables - Schedule of Receivables (Footnote) (Detail) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Receivables [Abstract]
Servicing receivables, allowance for losses	$ 41.4	$ 53.3

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- Definition

Servicing Receivables, Allowance For Losses

+ References

No definition available.

+ Details

Name:	ocn_ServicingReceivablesAllowanceForLosses
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