Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.1
Rollforward of Mortgage Servicing Rights, at Fair Value (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Servicing Asset at Fair Value, Amount [Roll Forward]      
Mortgage servicing rights, at fair value, at beginning of period $ 1,596,153 $ 1,909,444  
Purchases of mortgage servicing rights 175,223 183,783  
Sales of mortgage servicing rights 0 1,433  
Changes in valuation inputs or assumptions used in the valuation model 501,693 (500,763)  
Other changes in fair value (174,255) (85,902)  
Other changes (7,053) (2,832)  
Mortgage servicing rights, at fair value, at end of period 2,091,761 $ 1,505,163  
Mortgage servicing rights, at fair value, pledged as collateral for borrowings $ 1,700,000   $ 1,100,000