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

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
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Period Type:	duration

- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

+ Details

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateTerms
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Data Type:	xbrli:stringItemType
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Period Type:	duration

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

+ Details

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

- Definition

Description of the payment terms of the debt instrument (for example, whether periodic payments include principal and frequency of payments) and discussion about any contingencies associated with the payment.

+ 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(a)(3))
-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

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Balance Type:	na
Period Type:	duration

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
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

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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

- Definition

The borrowing threshold under the 2013 Credit Agreement for which the Company must satisfy a specified Interest Coverage Ratio and a specified Total Leverage Ratio on a pro forma basis after giving effect to the borrowing in order to borrow in excess of the threshold.

+ References

No definition available.

+ Details

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Namespace Prefix:	wac_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt instrument annual principal payment percentage.

+ References

No definition available.

+ Details

Name:	wac_DebtInstrumentAnnualPrincipalPaymentPercentage
Namespace Prefix:	wac_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

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Namespace Prefix:
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- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_CorporateDebtSecuritiesMember
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Balance Type:
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- Details

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Corporate Debt - Summary of Secured Credit Facilities Terms (Details) - USD ($)			5 Months Ended	12 Months Ended
	Jan. 02, 2017	Aug. 04, 2016	Dec. 31, 2016	Dec. 31, 2016
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Aggregate borrowing capacity		$ 125,000,000.0	$ 100,000,000.0	$ 100,000,000.0
Interest Rate Terms				LIBOR plus 4.50%(2)
Variable Interest Rate Basis		LIBOR	LIBOR	Libor
Interest rate spread		3.75%	4.50%	4.50%
Payment Terms				Bullet payment at maturity
Maturity/Expiration Date				Dec. 19, 2018
Borrowing Threshold				20.00%
Maximum amount available to borrow			$ 20,000,000	$ 20,000,000
Remaining availability after reductions for issued letters of credit			$ 12,200,000	$ 12,200,000
2013 Term Loan [Member]
Line of Credit Facility [Line Items]
Interest Rate Terms				LIBOR plus 3.75% LIBOR floor of 1.00%
Variable Interest Rate Basis				Libor
Interest rate spread				3.75%
Payment Terms				1.00% per annum beginning 1st quarter 2014; remainder at final maturity
Annual Principal Payment Percentage				1.00%
Maturity/Expiration Date				Dec. 18, 2020
2013 Term Loan [Member] \| Minimum [Member]
Line of Credit Facility [Line Items]
Interest Rate Floor			1.00%	1.00%
Subsequent Event [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Variable Interest Rate Basis	LIBOR
Interest rate spread	3.75%