Debt Instrument, Interest Rate, Basis for Effective Rate at Period End

No definition available.

Name:	ocn_DebtInstrumentInterestRateBasisforEffectiveRateatPeriodEnd
Namespace Prefix:	ocn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Proceeds from sale of mortgage servicing rights accounted for as financing.

+ References

No definition available.

+ Details

Name:	ocn_ProceedsFromSaleOfMortgageServicingRightsAccountedForAsFinancing
Namespace Prefix:	ocn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

Name:	us-gaap_DebtInstrumentInterestRateEffectivePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Incremental percentage increase (decrease) in the stated rate on a debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentInterestRateIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

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

- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

+ References

+ Details

Name:	us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=ocn_AdvanceReceivableBackedVariableFundingNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=ocn_SeriesTwoThousandSixteenAndSeventeenTermNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=ocn_SeriesTwoThousandFourteenVariableFundingNotesOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=ocn_SeriesTwoThousandFifteenVariableFundingNotesOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=ocn_LoanSeriesTwoThousandSeventeenOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CounterpartyNameAxis=ocn_NewResidentialInvestmentCorpMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Borrowings - Schedule of Match Funded Liabilities (Footnote) (Details) - USD ($)		1 Months Ended	12 Months Ended
	Jan. 18, 2018	Jan. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Jan. 01, 2018
Debt Instrument [Line Items]
Proceeds from sale of mortgage servicing rights accounted for as a financing			$ 54,601,000	$ 0	$ 0
Available borrowing capacity			$ 12,408,000
Minimum [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate			2.4989%
Maximum [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate			4.4456%
Advance Receivable Backed Variable Funding Notes [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 105,000,000
Advance Receivable Backed Variable Funding Notes [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity						$ 70,000,000
Series 2016 and 2017 Term Notes [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity			750,000,000
Advance Receivables Backed Notes, Series 2014-VF1 [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 55,000,000
Ceiling percentage of 1ML in determining interest rate			3.00%
Advance Receivables Backed Notes, Series 2014-VF1 [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			2.35%
Advance Receivables Backed Notes, Series 2014-VF1 [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			4.75%
Advance Receivables Backed Notes, Series 2015-VF1 [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 110,000,000
Basis spread on variable rate			3.00%
Advance Receivables Backed Notes, Series 2015-VF1 [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			2.50%
Advance Receivables Backed Notes, Series 2015-VF1 [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			5.00%
Loan Series 2017-1 [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 50,000,000
Basis spread on variable rate			5.00%
LIBOR [Member]
Debt Instrument [Line Items]
1-Month LIBOR			1.56%	0.77%
LIBOR [Member] \| Advance Receivable Backed Variable Funding Notes [Member]
Debt Instrument [Line Items]
Ceiling percentage of 1ML in determining interest rate			1.25%
LIBOR [Member] \| Advance Receivable Backed Variable Funding Notes [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			2.35%
LIBOR [Member] \| Advance Receivable Backed Variable Funding Notes [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			6.35%
NRZ [Member]
Debt Instrument [Line Items]
Proceeds from sale of mortgage servicing rights accounted for as a financing			$ 54,600,000
NRZ [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Proceeds from sale of mortgage servicing rights accounted for as a financing	$ 279,600,000	$ 279,600,000