XML 159 R143.htm IDEA: XBRL DOCUMENT v3.8.0.1
Business Segment Reporting - Schedule of Depreciation and Amortization by Segment (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Segment Reporting Information [Line Items]      
Depreciation expense $ 26,886 $ 25,338 $ 19,159
Amortization of mortgage servicing rights 51,788 32,978 99,194
Amortization of debt discount 1,114 4,177 2,680
Amortization of debt issuance costs 2,738 25,662 22,664
Servicing [Member]      
Segment Reporting Information [Line Items]      
Depreciation expense 5,797 6,804 2,990
Amortization of mortgage servicing rights 51,515 32,669 98,849
Amortization of debt discount 0 727 2,680
Amortization of debt issuance costs 0 13,455 21,269
Lending [Member]      
Segment Reporting Information [Line Items]      
Depreciation expense 194 228 380
Amortization of mortgage servicing rights 273 309 345
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 20,895 18,306 15,789
Amortization of mortgage servicing rights 0 0 0
Amortization of debt discount 1,114 3,450 0
Amortization of debt issuance costs $ 2,738 $ 12,207 $ 1,395