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Organization, Business Environment, Basis of Presentation and Significant Accounting Policies - Narrative (Details) - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2013
Description of Business and Basis of Presentation [Line Items]    
UPB of rights to MSRs sold   $ 119.7
Threshold period past due for financing receivables to be delinquent 89 days  
NRZ [Member]    
Description of Business and Basis of Presentation [Line Items]    
UPB of rights to MSRs sold $ 137.1  
Maximum [Member]    
Description of Business and Basis of Presentation [Line Items]    
Maximum percentage till, the company exercise significant influence, but not control over subsidiaries or VIEs 50.00%