XML 86 R69.htm IDEA: XBRL DOCUMENT v3.6.0.2
Sales of Advances and MSRs - Summary of MSRs and Advances Sold (Footnote) (Details) - USD ($)
$ in Millions
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Agency And Non-Agency Mortgage Servicing Rights [Member]      
Servicing Assets at Fair Value [Line Items]      
UPB of rights to MSRs sold $ 3,700.0    
Agency MSRs [Member]      
Servicing Assets at Fair Value [Line Items]      
UPB of rights to MSRs sold   $ 87,600.0  
Mortgage Servicing Rights [Member]      
Servicing Assets at Fair Value [Line Items]      
UPB of MSRs related to Freddie Mac mortgages     $ 11,800.0
OASIS Series 2014-1 [Member] | Secured Debt [Member]      
Servicing Assets at Fair Value [Line Items]      
Face amount     $ 123.6