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Business Segment Reporting - Schedule of Depreciation and Amortization by Segment (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Segment Reporting Information [Line Items]        
Depreciation expense $ 4,075 $ 5,306 $ 8,420 $ 10,846
Amortization of mortgage servicing rights 31,586 63,198 70,080 125,292
Amortization of debt discount 337 330 693 661
Amortization of debt issuance costs 3,556 1,210 7,311 2,297
Servicing [Member]        
Segment Reporting Information [Line Items]        
Depreciation expense 513 2,643 1,042 5,463
Amortization of mortgage servicing rights 31,499 62,794 69,903 124,574
Amortization of debt discount 337 330 693 661
Amortization of debt issuance costs 3,183 1,040 6,606 2,127
Lending [Member]        
Segment Reporting Information [Line Items]        
Depreciation expense 92 32 197 138
Amortization of mortgage servicing rights 87 404 177 519
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 3,470 2,631 7,181 5,245
Amortization of mortgage servicing rights 0 0 0 199
Amortization of debt discount 0 0 0 0
Amortization of debt issuance costs $ 373 $ 170 $ 705 $ 170