Annual report [Section 13 and 15(d), not S-K Item 405]

MORTGAGE SERVICING RIGHTS - Summary of Activity of Mortgage Servicing Rights (Details)

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MORTGAGE SERVICING RIGHTS - Summary of Activity of Mortgage Servicing Rights (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Servicing Liability at Fair Value, Amount [Roll Forward]    
Balance — beginning of year $ 1,161,357 $ 1,139,539
MSRs originated 203,191 161,378
MSRs purchased, net 17,826 0
Changes in fair value:    
Due to collection/realization of cash flows $ (75,531) $ (55,588)
Servicing Asset, Fair Value, Change in Fair Value, Other, Statement of Income or Comprehensive Income [Extensible Enumeration] Valuation adjustment of mortgage servicing rights Valuation adjustment of mortgage servicing rights
Due to changes in valuation model inputs or assumptions $ 36,986 $ (83,972)
Balance — end of year $ 1,343,829 $ 1,161,357