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Loans Held for Sale - Summary of Activity in the Balance of Loans Held for Sale, at Fair Value (Footnote) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Loans Held For Sale At Fair Value [Abstract]
Change in fair value of loans held for sale	$ (9.1)	$ 6.2	$ (3.7)

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- Definition

-- None. No documentation exists for this element. --

+ References

No definition available.

+ Details

Name:	ocn_LoansHeldForSaleAtFairValueAbstract
Namespace Prefix:	ocn_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

The increase (decrease) during the period in book value of long-lived assets that the reporting entity plans to sell within one year (or one business cycle).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	duration