Number of persons employed by the Entity

No definition available.

Name:	dei_EntityNumberOfEmployees
Namespace Prefix:	dei_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

This represents the amount of increase in net cash flows from operating activities as a result of adoption of FASB Accounting Standards Update (ASU) 2016-18, Statement of Cash Flows (Topic 230) - Restricted Cash.

+ References

No definition available.

+ Details

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

- Definition

Percentage of foreign based employees engaged in supporting loan servicing operations.

+ References

No definition available.

+ Details

Name:	ocn_PercentageOfForeignBasedEmployeesEngagedInSupportingLoanServicingOperations
Namespace Prefix:	ocn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- 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

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of cumulative tax effect on beginning retained earnings from change in accounting principle.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 20
-Section 45
-Paragraph 11
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=79507043&loc=d3e39076-109324

+ Details

Name:	us-gaap_IncomeTaxEffectsAllocatedDirectlyToEquityCumulativeEffectOfChangeInAccountingPrinciple
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04.(a))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690

+ Details

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

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

- Details

Name:	us-gaap_StatementGeographicalAxis=country_IN
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementGeographicalAxis=country_PH
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:

Organization, Business Environment and Basis of Presentation - Narrative (Details) $ in Thousands			3 Months Ended
	Jan. 18, 2018 USD ($)	Sep. 01, 2017 USD ($)	Mar. 31, 2018 USD ($) Employee	Mar. 31, 2017 USD ($)
Description of Business and Basis of Presentation [Line Items]
Total number of employees \| Employee			7,154
Percentage of foreign based employees engaged in supporting loan servicing operations			80.00%
Proceeds from sale of mortgage servicing rights accounted for as financing			$ 279,586	$ 0
Current maturities of borrowings in next 12 months			$ 738,000
Debt instrument, term			364 days
Increase in net cash provided by operating activities				$ 3,600
Cumulative effect of adoption of FASB Accounting Standards Update 2016-16			$ (5,621)
INDIA
Description of Business and Basis of Presentation [Line Items]
Total number of employees \| Employee			4,723
PHILIPPINES
Description of Business and Basis of Presentation [Line Items]
Total number of employees \| Employee			601
NRZ [Member]
Description of Business and Basis of Presentation [Line Items]
Proceeds from sale of mortgage servicing rights accounted for as financing	$ 279,600	$ 54,600