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Business Segment Reporting - Schedule of Depreciation and Amortization by Segment (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Segment Reporting Information [Line Items]      
Depreciation expense $ 19,159 $ 21,910 $ 24,245
Amortization of mortgage servicing rights 99,194 250,375 282,781
Amortization of debt discount 2,680 1,318 1,412
Amortization of debt issuance costs 22,664 5,139 4,395
Servicing [Member]      
Segment Reporting Information [Line Items]      
Depreciation expense 2,990 9,955 13,525
Amortization of mortgage servicing rights 98,849 249,471 282,526
Amortization of debt discount 2,680 1,318 1,412
Amortization of debt issuance costs 21,269 4,294 4,395
Lending [Member]      
Segment Reporting Information [Line Items]      
Depreciation expense 380 332 320
Amortization of mortgage servicing rights 345 705 255
Amortization of debt discount 0 0 0
Amortization of debt issuance costs 0 0 0
Corporate Items and Other [Member]      
Segment Reporting Information [Line Items]      
Depreciation expense 15,789 11,623 10,400
Amortization of mortgage servicing rights 0 199 0
Amortization of debt discount 0 0 0
Amortization of debt issuance costs $ 1,395 $ 845 $ 0