Servicing of Residential Loans - Schedule of Total Servicing Portfolio (Detail) $ in Thousands	Dec. 31, 2016 USD ($) Account	Dec. 31, 2015 USD ($) Account
Servicing Portfolio [Line Items]
Number of Accounts | Account	2,064,543	2,245,708
Unpaid Principal Balance	$ 246,445,143	$ 266,648,244
New Residential Investment Corp. [Member]
Servicing Portfolio [Line Items]
Unpaid Principal Balance	$ 59,800,000
Third Party Credit Owners [Member]
Servicing Portfolio [Line Items]
Number of Accounts | Account	1,967,155	2,143,664
Unpaid Principal Balance	$ 233,755,125	$ 253,942,712
Third Party Credit Owners [Member] | Capitalized Servicing Rights [Member]
Servicing Portfolio [Line Items]
Number of Accounts | Account	1,032,676	1,637,541
Unpaid Principal Balance	$ 112,936,287	$ 197,154,579
Third Party Credit Owners [Member] | Capitalized Servicing Rights [Member] | Corporate Joint Venture [Member] | Sale Of Servicing Rights To WCO, Failed Sale Accounting [Member]
Servicing Portfolio [Line Items]
Unpaid Principal Balance		$ 1,700,000
Third Party Credit Owners [Member] | Capitalized Sub-servicing [Member]
Servicing Portfolio [Line Items]
Number of Accounts | Account	130,018	159,368
Unpaid Principal Balance	$ 7,426,803	$ 9,053,755
Third Party Credit Owners [Member] | Sub-servicing [Member]
Servicing Portfolio [Line Items]
Number of Accounts | Account	804,461	346,755
Unpaid Principal Balance	$ 113,392,035	$ 47,734,378
Third Party Credit Owners [Member] | Sub-servicing [Member] | New Residential Investment Corp. [Member]
Servicing Portfolio [Line Items]
Unpaid Principal Balance	$ 64,600,000
Third Party Credit Owners [Member] | Sub-servicing [Member] | Corporate Joint Venture [Member] | Sub-servicing Performed For WCO [Member]
Servicing Portfolio [Line Items]
Unpaid Principal Balance		$ 6,600,000
On-balance Sheet [Member]
Servicing Portfolio [Line Items]
Number of Accounts | Account	97,388	102,044
Unpaid Principal Balance	$ 12,690,018	$ 12,705,532