Payables and Accrued Liabilities - Payables and Accrued Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2012
Payables and Accruals [Abstract]
Employee-related liabilities	$ 67,015	$ 90,788		$ 37,124
Payables to insurance carriers	79,551wac_PayablesToInsuranceCarriers	69,489wac_PayablesToInsuranceCarriers		51,377wac_PayablesToInsuranceCarriers
Accounts payable and accrued liabilities	82,434	55,174		33,130
Curtailment liability	60,362wac_CurtailmentLiability	53,905wac_CurtailmentLiability		0wac_CurtailmentLiability
Originations liability	55,216wac_OriginationsLiability	50,042wac_OriginationsLiability		675wac_OriginationsLiability
Uncertain tax positions	21,034	20,550		26,301
Acquisition related escrow funds payable to sellers	15,942	19,620		14,000
Collateral payable on derivative instruments	1,587	19,148		0
Accrued interest payable	15,573	18,416		10,764
Servicing rights and related advance purchases payable	131,214	12,741		21,011
Servicing transfer payables	6,741wac_ServicingTransferPayables	14,167wac_ServicingTransferPayables		11,275wac_ServicingTransferPayables
Mandatory repurchase obligation		8,182wac_MandatoryRepurchaseObligation		9,999wac_MandatoryRepurchaseObligation
Insurance premium cancellation reserve	6,589wac_InsurancePremiumCancellationReserve	7,135wac_InsurancePremiumCancellationReserve		4,769wac_InsurancePremiumCancellationReserve
Professional fees liability related to certain securitizations		6,607		8,147
Contingent earn-out payments	0	5,900	10,900	6,100
Derivative instruments	28,474	5,882		1,102
Other		36,393us-gaap_OtherLiabilities		24,836us-gaap_OtherLiabilities
Other	50,550	51,182
Total payables and accrued liabilities	$ 622,282	$ 494,139		$ 260,610

Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.15(1),(5))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.15)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 15

-Article 7

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 15

-Subparagraph 1, 5

-Article 9