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

Number Of Reverse Mortgage Loans Acquired Under Sub-servicing Agreement

+ References

No definition available.

+ Details

Name:	ocn_NumberOfReverseMortgageLoansAcquiredUnderSubServicingAgreement
Namespace Prefix:	ocn_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

This represents the unpaid principal balance of loans for which servicing rights has been acquired during the period.

+ References

No definition available.

+ Details

Name:	ocn_UnpaidPrincipalBalanceOfPortfolioOfLoansAcquired
Namespace Prefix:	ocn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585

+ Details

Name:	us-gaap_PaymentsToAcquireBusinessesGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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

- Details

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

- Details

Name:	srt_CounterpartyNameAxis=ocn_ReverseMortgageSolutionsIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Subsequent Events - Narrative (Details) $ in Millions	Oct. 01, 2021 USD ($) Employees Loan	Sep. 30, 2021 USD ($) Employee	Sep. 30, 2020 USD ($)
Subsequent Event [Line Items]
Total number of employees \| Employee		5,200
UPB of loans acquired		$ 72,200.0	$ 9,900.0
Subsequent Event \| RMS
Subsequent Event [Line Items]
Aggregate purchase price	$ 12.4
Total number of employees \| Employees	350
Number of reverse mortgage loans acquired \| Loan	57,000
UPB of loans acquired	$ 14,300.0