Annual report pursuant to Section 13 and 15(d)

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

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Servicing Activities - Rollforward of Mortgage Servicing Rights, at Fair Value (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Servicing Asset at Fair Value, Amount [Roll Forward]      
Balance at beginning of period $ 3,052,016 $ 2,984,937 $ 2,191,578
Purchases of mortgage servicing rights 115,587 317,194 640,051
Additions from sales of mortgage loans 667 0 0
Sales of mortgage servicing rights (1) (81,014) (115,754) (259,059)
Changes in fair value due to:      
Changes in valuation inputs or assumptions used in the valuation model $ 140,168 $ 97,859 $ 793,631
Servicing asset, at fair value, other change in fair value, statement of income or comprehensive income extensible enumeration not disclosed flag Other changes in fair value (3) Other changes in fair value (3) Other changes in fair value (3)
Other changes in fair value $ (231,606) $ (227,663) $ (371,023)
Other changes (1,547) (4,557) (10,241)
Balance at end of period $ 2,994,271 $ 3,052,016 $ 2,984,937