Mortgage Servicing - Schedule of Components of Servicing and Subservicing Fees (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Transfers and Servicing [Abstract]
Servicing	$ 63,071	$ 74,105	$ 197,712	$ 229,686
Subservicing	1,760	2,989	5,877	11,436
NRZ	129,228	159,919	420,151	482,566
Servicing and Subservicing fees, total	194,059	237,013	623,740	723,688
Late charges	14,958	15,225	47,352	51,301
Home Affordable Modification Program (HAMP) fees	6,202	32,029	37,692	88,141
Loan collection fees	5,663	6,746	17,918	20,860
Other	12,338	11,222	34,821	23,003
Fees, total	$ 233,220	$ 302,235	$ 761,523	$ 906,993

All amounts that, per contract, are due in exchange for servicing or subservicing the financial asset.

No definition available.

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- Definition

All amounts that, per contract, are due to the subservicer in exchange for subservicing the financial asset and would no longer be received by a subservicer if the owners of the servicing rights were to exercise their authority under the contract to shift the subservicing to another servicer.

+ References

No definition available.

+ Details

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- Definition

Represents loan collection fees paid by the borrower to the servicer for automated payment services.

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No definition available.

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Name:	ocn_LoanCollectionFeesEarnedInExchangeForServicingFinancialAssets
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Balance Type:	credit
Period Type:	duration

- Definition

Represents fees related to a specific loan modification program due to the servicer in exchange for servicing the financial asset.

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No definition available.

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- Definition

Servicing fee collected on mortgage servicing rights for which rights have been sold to NRZ.

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No definition available.

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Name:	ocn_ServicingFeeCollectedOnBehalfOfCounterparty
Namespace Prefix:	ocn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

All amounts that are due to the servicer of a financial asset, excluding contractually specified servicing fees and late fees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=68078379&loc=d3e122596-111746

+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

All amounts that, per contract, are due to the servicer in exchange for servicing the financial asset and would no longer be received by a servicer if the beneficial owners of the serviced assets (or their trustees or agents) were to exercise their actual or potential authority under the contract to shift the servicing to another servicer. Depending on the servicing contract, those fees may include some or all of the difference between the interest rate collected on the asset being serviced and the rate to be paid to the beneficial owners of the asset.

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+ Details

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- Definition

The total amount of contractually specified servicing fees, late fees, and ancillary fees earned for each period for which results of operations are presented.

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+ Details

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- Definition

All amounts that are due to the servicer of a financial asset as a result of the debt holder not meeting the monthly payment terms.

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+ Details

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- References

No definition available.

+ Details

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