Quarterly report pursuant to Section 13 or 15(d)

Rollforward of Mortgage Servicing Rights, at Fair Value (Details)

v3.19.2
Rollforward of Mortgage Servicing Rights, at Fair Value (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Servicing Asset at Fair Value, Amount [Roll Forward]          
Mortgage servicing rights, at fair value, at beginning of period $ 2,014,370 $ 1,301,023 $ 1,993,440 $ 1,086,717  
Additions from purchases of mortgage servicing rights 43,710 132,366 264,522 279,265  
Changes in valuation inputs or assumptions used in the valuation model (182,025) 46,221 (333,639) 146,930  
Other changes in fair value (70,407) (36,467) (108,056) (65,669)  
Other changes (4,822) 7,118 (15,441) 3,018  
Mortgage servicing rights, at fair value, at end of period 1,800,826 $ 1,450,261 1,800,826 $ 1,450,261  
Mortgage servicing rights, at fair value, pledged as collateral for borrowings $ 1,400,000   $ 1,400,000   $ 1,100,000