Borrowings available on committed basis.

No definition available.

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

- Definition

Represents the index floor rate used for interest rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	ocn_DebtInstrumentInterestRateAtIndexFloorRate
Namespace Prefix:	ocn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line of Credit Facility, Agreement Term, Potential Benefit Interest Percentage By Lender

+ References

No definition available.

+ Details

Name:	ocn_LineofCreditFacilityAgreementTermPotentialBenefitInterestPercentageByLender
Namespace Prefix:	ocn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of equity interest in foreign subsidiaries pledged as security to secured debt.

+ References

No definition available.

+ Details

Name:	ocn_PercentageOfEquityInterestInForeignSubsidiariesPledgedAsSecurityToSecuredDebt
Namespace Prefix:	ocn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of loan to collateral value.

+ References

No definition available.

+ Details

Name:	ocn_PercentageOfLoanToCollateralValue
Namespace Prefix:	ocn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

+ Details

Name:	us-gaap_DebtInstrumentPeriodicPayment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

+ References

+ Details

Name:	us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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

- Details

Name:	us-gaap_ShortTermDebtTypeAxis=us-gaap_WarehouseAgreementBorrowingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

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

- Details

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

- Details

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

- Details

Name:	us-gaap_DebtInstrumentAxis=ocn_SeniorSecuredTermLoanOptionOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_FederalFundsEffectiveSwapRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_EurodollarMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_BaseRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=ocn_SeniorSecuredTermLoanOptionTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Borrowings - Schedule of Other Secured Borrowings (Footnote) (Details) - USD ($)		12 Months Ended
	Dec. 05, 2016	Dec. 31, 2017	Nov. 20, 2015
Debt Instrument [Line Items]
Available borrowing capacity		$ 12,408,000
Percentage of equity interest in foreign subsidiaries pledged as security to secured debt		35.00%
SSTL [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 335,000,000
New term loans issuable	$ 100,000,000
Periodic prepayment of SSTL		$ 4,200,000
Percentage of loan to value		40.00%
Mortgage Loan Warehouse Facilities [Member] \| Other Secured Borrowings [Member]
Debt Instrument [Line Items]
Available borrowing capacity		$ 21,800,000
Mortgage Loan Warehouse Facilities [Member] \| Other Secured Borrowings [Member] \| Repurchase Agreement [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 137,500,000
Borrowings available o committed basis		87,500,000
Mortgage Loan Warehouse Facilities [Member] \| Other Secured Borrowings [Member] \| Participation Agreement [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 250,000,000
Beneficial interest		100.00%
Mortgage Loan Warehouse Facilities [Member] \| Other Secured Borrowings [Member] \| Mortgage Warehouse Agreement [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 100,000,000
Mortgage Loan Warehouse Facilities [Member] \| Other Secured Borrowings [Member] \| Master Repurchase Agreement [Member]
Debt Instrument [Line Items]
Available borrowing capacity		$ 150,000,000
Beneficial interest		100.00%
Mortgage Loan Warehouse Facilities [Member] \| Other Secured Borrowings [Member] \| Master Repurchase Agreement [Member]
Debt Instrument [Line Items]
Available borrowing capacity		$ 50,000,000
Senior Secured Term Loan Option One [Member] \| Federal Funds Rate [Member] \| Other Secured Borrowings [Member] \| SSTL [Member]
Debt Instrument [Line Items]
Interest rate	0.50%
Senior Secured Term Loan Option One [Member] \| Eurodollar [Member] \| Other Secured Borrowings [Member] \| SSTL [Member]
Debt Instrument [Line Items]
Interest rate	4.00%
Senior Secured Term Loan Option One [Member] \| Base Rate [Member] \| Other Secured Borrowings [Member] \| SSTL [Member]
Debt Instrument [Line Items]
Interest rate at floor	2.00%
Senior Secured Term Loan Option Two [Member] \| Eurodollar [Member] \| Other Secured Borrowings [Member] \| SSTL [Member]
Debt Instrument [Line Items]
Interest rate	5.00%
Interest rate at floor	1.00%