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Commitments - Narrative (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015
Floating Rate Reverse Mortgage Loans [Member]
Other Commitments [Line Items]
Additional borrowing capacity to borrowers	$ 685.0ocn_AdditionalBorrowingCapacityToBorrowers / us-gaap_FinancialInstrumentAxis = ocn_FloatingRateReverseMortgageLoansMember
Forward Mortgage Loan Interest Rate Lock Commitments [Member]
Other Commitments [Line Items]
Short-term commitments to lend	412.2ocn_ShortTermCommitmentsToLend / us-gaap_FinancialInstrumentAxis = ocn_ForwardMortgageLoanInterestRateLockCommitmentsMember
Reverse Mortgage Loan Interest Rate Lock Commitments [Member]
Other Commitments [Line Items]
Short-term commitments to lend	$ 12.8ocn_ShortTermCommitmentsToLend / us-gaap_FinancialInstrumentAxis = ocn_ReverseMortgageLoanInterestRateLockCommitmentsMember

X

- Definition

Additional borrowing capacity to borrowers.

+ References

No definition available.

+ Details

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

X

- Definition

Short-term commitments to lend.

+ References

No definition available.

+ Details

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

X

- Details

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

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=ocn_FloatingRateReverseMortgageLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=ocn_ForwardMortgageLoanInterestRateLockCommitmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=ocn_ReverseMortgageLoanInterestRateLockCommitmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: