Servicing of Residential Loans - Schedule of Total Servicing Portfolio (Detail) $ in Thousands	Jun. 30, 2017 USD ($) Accounts	Dec. 31, 2016 USD ($) Accounts
Servicing Portfolio [Line Items]
Number of Accounts | Accounts	1,940,988	2,064,543
Unpaid Principal Balance	$ 233,635,442	$ 246,445,143
Third Party Investors | Subservicing | New Residential Investment Corp.
Servicing Portfolio [Line Items]
Unpaid Principal Balance		$ 64,600,000
Third-party Credit Owners
Servicing Portfolio [Line Items]
Number of Accounts | Accounts	1,847,979	1,967,155
Unpaid Principal Balance	$ 221,323,346	$ 233,755,125
Third-party Credit Owners | Capitalized Servicing Rights
Servicing Portfolio [Line Items]
Number of Accounts | Accounts	960,478	1,032,676
Unpaid Principal Balance	$ 105,904,354	$ 112,936,287
Third-party Credit Owners | Capitalized Subservicing
Servicing Portfolio [Line Items]
Number of Accounts | Accounts	116,000	130,018
Unpaid Principal Balance	$ 6,350,359	$ 7,426,803
Third-party Credit Owners | Subservicing
Servicing Portfolio [Line Items]
Number of Accounts | Accounts	771,501	804,461
Unpaid Principal Balance	$ 109,068,633	$ 113,392,035
On-balance Sheet | Residential Loans and Real Estate Owned
Servicing Portfolio [Line Items]
Number of Accounts | Accounts	93,009	97,388
Unpaid Principal Balance	$ 12,312,096	$ 12,690,018