Annual report pursuant to Section 13 and 15(d)

Components of Servicing Revenue (Details)

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Components of Servicing Revenue (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosures Pertaining to Servicing Assets and Servicing Liabilities [Abstract]      
Servicing fee income $ 461,381 $ 416,936 $ 436,587
Ancillary and other fee income 2,436 1,945 1,801
Float income 4,589 24,470 63,224
Servicing income 468,406 443,351 $ 501,612
Servicing advances $ 130,600 $ 80,900  
Mortgage servicing rights, delinquency rate 1.30% 3.20%  
Servicing advances pledged as collateral for borrowings $ 33,800 $ 28,500