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Sales of Advances and MSRs - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Apr. 06, 2015
Dec. 31, 2015
Dec. 31, 2014
Related Party Transaction [Line Items]      
Expenses in connection with downgrade in servicers rating   $ 14.3  
NRZ [Member]      
Related Party Transaction [Line Items]      
Outstanding servicing advances   5,200.0  
Period from sale of tranche of rights to mortgage servicing rights that apportionment of fees is subject to re-negotiation 8 years    
Reimbursements on account of loss of servicing revenues   $ 2.2 $ 2.0
Maximum [Member]      
Related Party Transaction [Line Items]      
Increased costs of financing to be compensated during any calendar month $ 3.0    
Increased costs of financing to be compensated during contractual term $ 36.0