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Business Segment Reporting - Schedule of Depreciation and Amortization by Segment (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Segment Reporting Information [Line Items]        
Depreciation expense $ 5,046 $ 5,756 $ 13,467 $ 16,601
Amortization of mortgage servicing rights 18,108 60,783 88,188 186,075
Amortization of debt discount 329 331 1,022 991
Amortization of debt issuance costs 3,325 1,458 10,385 3,754
Servicing [Member]        
Segment Reporting Information [Line Items]        
Depreciation expense 694 2,636 1,736 8,099
Amortization of mortgage servicing rights 18,023 60,689 87,926 185,263
Amortization of debt discount 329 331 1,022 991
Amortization of debt issuance costs 2,981 1,114 9,336 3,241
Lending [Member]        
Segment Reporting Information [Line Items]        
Depreciation expense 96 98 292 235
Amortization of mortgage servicing rights 85 94 262 613
Amortization of debt discount 0 0 0 0
Amortization of debt issuance costs 0 0 0 0
Corporate Items and Other [Member]        
Segment Reporting Information [Line Items]        
Depreciation expense 4,256 3,022 11,439 8,267
Amortization of mortgage servicing rights 0 0 0 199
Amortization of debt discount 0 0 0 0
Amortization of debt issuance costs $ 344 $ 344 $ 1,049 $ 513