Commitments - Schedule of Activity Related to HMBS Repurchases (Details) $ in Thousands	3 Months Ended
Mar. 31, 2020 USD ($) loan Securities
Long-term Purchase Commitment [Line Items]
Beginning balance, repurchase securities, number \| Securities	320
Additions, repurchase securities, number \| Securities	120
Recoveries, net, repurchase securities, number \| Securities	(4)
Transfers, repurchase securities, number \| Securities	0
Change in value, repurchase securities, number \| Securities	0
Ending balance, repurchase securities, number \| Securities	436
Beginning balance, repurchase securities, value	$ 35,693
Additions, repurchase securities, value	19,856
Recoveries, repurchase securities, value	(8,597)
Transfers, repurchase securities, value	0
Change in value, repurchase securities, value	(949)
Ending balance, repurchase securities, value	$ 46,003
Active
Long-term Purchase Commitment [Line Items]
Beginning balance, repurchase securities, number \| loan	62
Additions, repurchase securities, number \| loan	47
Recoveries, net, repurchase securities, number \| loan	(3)
Transfers, repurchase securities, number \| loan	(2)
Change in value, repurchase securities, number \| loan	0
Ending balance, repurchase securities, number \| Securities	104
Beginning balance, repurchase securities, value	$ 10,546
Additions, repurchase securities, value	10,337
Recoveries, repurchase securities, value	(5,413)
Transfers, repurchase securities, value	(553)
Change in value, repurchase securities, value	43
Ending balance, repurchase securities, value	$ 14,960
Inactive
Long-term Purchase Commitment [Line Items]
Beginning balance, repurchase securities, number \| loan	258
Additions, repurchase securities, number \| loan	73
Recoveries, net, repurchase securities, number \| loan	(1)
Transfers, repurchase securities, number \| loan	2
Change in value, repurchase securities, number \| loan	0
Ending balance, repurchase securities, number \| Securities	332
Beginning balance, repurchase securities, value	$ 25,147
Additions, repurchase securities, value	9,519
Recoveries, repurchase securities, value	(3,184)
Transfers, repurchase securities, value	553
Change in value, repurchase securities, value	(992)
Ending balance, repurchase securities, value	$ 31,043

This represents the additions to HMBS repurchase securities.

No definition available.

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

- Definition

This represents the amount of additions to HMBS repurchase securities.

+ References

No definition available.

+ Details

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

- Definition

This represents the change in value of HMBS repurchase securities.

+ References

No definition available.

+ Details

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

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

This represents the number of HMBS repurchase securities outstanding.

+ References

No definition available.

+ Details

Name:	ocn_HomeEquityConversionMortgageBackedSecurityRepurchasesOutstanding
Namespace Prefix:	ocn_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

This represents the amount of HMBS repurchase securities outstanding.

+ References

No definition available.

+ Details

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

- Definition

This represents the recoveries of HMBS repurchase securities.

+ References

No definition available.

+ Details

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

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

This represents the transfers of HMBS repurchase securities.

+ References

No definition available.

+ Details

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

- Definition

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

+ References

No definition available.

+ Details

Name:	ocn_TransfersRelatedToHomeEquityConversionMortgageBackedSecurityRepurchasesValue
Namespace Prefix:	ocn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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_LongTermPurchaseCommitmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

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- Details

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Data Type:	na
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Period Type: