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v3.20.2

Commitments - Estimated Monthly Principal & Interest Advances (Footnote) (Details) | 9 Months Ended
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Sep. 30, 2020
Other Commitments [Line Items] |
Advance reimbursement period | 30 days
New Residential Investment Corp |
Other Commitments [Line Items] |
Advance reimbursement period | 3 days
New Residential Investment Corp | Minimum |
Other Commitments [Line Items] |
Advance reimbursement period | 1 day
New Residential Investment Corp | Maximum |
Other Commitments [Line Items] |
Advance reimbursement period | 30 days

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- Definition Advance reimbursement period. + References No definition available. + Details
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Namespace Prefix: | ocn_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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

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- Details
Name: | srt_CounterpartyNameAxis=ocn_NewResidentialInvestmentCorpMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |