Commitments - Schedule of Activity Related to HMBS Repurchases (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Schedule Of Repurchases Activity [Roll Forward]
Beginning balance, repurchase securities, value	$ 178.5
Additions, repurchase securities, value	274.6	$ 235.7	$ 147.3
Recoveries, repurchase securities, value	(262.8)
Transfers, repurchase securities, value	0.0
Change in value, repurchase securities, value	(4.3)
Ending balance, repurchase securities, value	186.0	178.5
Active
Schedule Of Repurchases Activity [Roll Forward]
Beginning balance, repurchase securities, value	70.7
Additions, repurchase securities, value	189.9
Recoveries, repurchase securities, value	(209.5)
Transfers, repurchase securities, value	4.1
Change in value, repurchase securities, value	0.2
Ending balance, repurchase securities, value	55.4	70.7
Inactive
Schedule Of Repurchases Activity [Roll Forward]
Beginning balance, repurchase securities, value	107.7
Additions, repurchase securities, value	84.8
Recoveries, repurchase securities, value	(53.3)
Transfers, repurchase securities, value	(4.1)
Change in value, repurchase securities, value	(4.5)
Ending balance, repurchase securities, value	$ 130.6	$ 107.7

This represents the amount of additions to HMBS repurchase securities.

No definition available.

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

This represents the amount of change in value of HMBS repurchase securities.

No definition available.

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

This represents the amount of HMBS repurchase securities outstanding.

No definition available.

Name:	ocn_HomeEquityConversionMortgageBackedSecurityRepurchasesOutstandingValue
Namespace Prefix:	ocn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

This represents the amount of recoveries related to HMBS repurchase securities.

No definition available.

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

Schedule Of Repurchases Activity [Roll Forward]

No definition available.

Name:	ocn_ScheduleOfRepurchasesActivityRollForward
Namespace Prefix:	ocn_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

This represents the amount of transfers related to HMBS repurchase securities.

No definition available.

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

Name:	us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis=ocn_ActiveMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis=ocn_InactiveMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: