Time period in which securitization takes place after loan closing or purchase.

No definition available.

Name:	ocn_AveragePeriodtoSecuritization
Namespace Prefix:	ocn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of loan transferred through securitization 60 days or more past due.

+ References

No definition available.

+ Details

Name:	ocn_PercentageOfLoanTransferredThroughSecuritizationSixtyDaysOrMorePastDue
Namespace Prefix:	ocn_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of mortgage servicing rights (MSRs) retained in connection with transfer of securitized loans accounted for as sales.

+ References

No definition available.

+ Details

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

- Definition

Amount of securities, mortgage loans, or other financial instruments pledged as collateral for deposits.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=116652737&loc=d3e64164-112818

+ Details

Name:	us-gaap_DepositLiabilitiesCollateralIssuedFinancialInstruments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Threshold period for when financing receivable is considered past due, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Excludes threshold period past due to write off as uncollectible.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 14
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919253-210447

+ Details

Name:	us-gaap_FinancingReceivableThresholdPeriodPastDue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Fair value portion of mortgage loans held-for-sale.

+ References

No definition available.

+ Details

Name:	us-gaap_MortgagesHeldForSaleFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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_QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_CreditFacilityAxis=ocn_MortgageWarehouseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ConsolidatedEntitiesAxis=us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=ocn_WarehouseMortgageLoanFinancingFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis=ocn_GinnieMaeLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Securitizations and Variable Interest Entities - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Sep. 30, 2022	Dec. 31, 2022
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Average period to securitization			30 days
MSRs retained	$ 31.5	$ 60.2	$ 62.6	$ 106.0
Percentage of loan transferred through securitization 60 days or more past due			2.20%		2.50%
Threshold period past due	60 days		60 days			60 days
Mortgages Held-for-sale, Fair Value Disclosure	$ 1,352.9	$ 683.1	$ 1,352.9	$ 683.1
Mortgage Warehouse Agreement \| Variable Interest Entity, Primary Beneficiary
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Mortgages Held-for-sale, Fair Value Disclosure	100.3		100.3
Warehouse Mortgage Loan Financing Facility \| Variable Interest Entity, Primary Beneficiary
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Loans held for sale pledged as a collateral	100.0		100.0
Mortgages Held-for-sale, Fair Value Disclosure	$ 141.1		$ 141.1
Ginnie Mae Loans
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Percentage of loan transferred through securitization 60 days or more past due			7.10%		8.30%
Threshold period past due	60 days		60 days			60 days