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Certain Capital Requirements and Guarantees Certain Capital Requirements and Guarantees - Additional Information (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Green Tree [Member]    
Compliance with Regulatory Capital Requirements for Mortgage Companies [Line Items]    
Minimum Net Worth Required for Compliance $ 675,536us-gaap_MinimumNetWorthRequiredForCompliance
/ dei_LegalEntityAxis
= wac_GreenTreeMember		 $ 398,953us-gaap_MinimumNetWorthRequiredForCompliance
/ dei_LegalEntityAxis
= wac_GreenTreeMember
Capital 1,532,480us-gaap_Capital
/ dei_LegalEntityAxis
= wac_GreenTreeMember		 1,297,450us-gaap_Capital
/ dei_LegalEntityAxis
= wac_GreenTreeMember
Reverse Mortgage Solutions Inc [Member]    
Compliance with Regulatory Capital Requirements for Mortgage Companies [Line Items]    
Minimum Net Worth Required for Compliance 108,519us-gaap_MinimumNetWorthRequiredForCompliance
/ dei_LegalEntityAxis
= wac_ReverseMortgageSolutionsIncMember		 88,191us-gaap_MinimumNetWorthRequiredForCompliance
/ dei_LegalEntityAxis
= wac_ReverseMortgageSolutionsIncMember
Capital 151,583us-gaap_Capital
/ dei_LegalEntityAxis
= wac_ReverseMortgageSolutionsIncMember		 121,280us-gaap_Capital
/ dei_LegalEntityAxis
= wac_ReverseMortgageSolutionsIncMember
Ditech [Member]    
Compliance with Regulatory Capital Requirements for Mortgage Companies [Line Items]    
Minimum Net Worth Required for Compliance 12,000us-gaap_MinimumNetWorthRequiredForCompliance
/ dei_LegalEntityAxis
= wac_DitechMember		 2,500us-gaap_MinimumNetWorthRequiredForCompliance
/ dei_LegalEntityAxis
= wac_DitechMember
Capital $ 45,643us-gaap_Capital
/ dei_LegalEntityAxis
= wac_DitechMember		 $ 18,258us-gaap_Capital
/ dei_LegalEntityAxis
= wac_DitechMember