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Mortgage Servicing - Schedule of Composition of Primary Servicing and Subservicing Portfolios by Type of Property Serviced as Measured by UPB (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Schedule of Servicing and Subservicing Portfolio [Line Items]      
Assets Serviced $ 250,966,112    
Residential [Member]      
Schedule of Servicing and Subservicing Portfolio [Line Items]      
Servicing 230,132,729 $ 361,288,281 $ 397,546,635
Subservicing 20,833,383 37,439,446 67,104,697
Assets Serviced 250,966,112 398,727,727 464,651,332
Commercial [Member]      
Schedule of Servicing and Subservicing Portfolio [Line Items]      
Servicing 0 0 0
Subservicing 105,268 149,737 400,502
Assets Serviced 105,268 149,737 400,502
Total [Member]      
Schedule of Servicing and Subservicing Portfolio [Line Items]      
Servicing 230,132,729 361,288,281 397,546,635
Subservicing 20,938,651 37,589,183 67,505,199
Assets Serviced $ 251,071,380 $ 398,877,464 $ 465,051,834