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Guarantees - Changes from credit recourses agreements (Details) - Guarantee on loans sold or serviced with credit recourse - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Guarantor Obligations [Line Items]    
Balance as of beginning of period $ 6,897 $ 11,800
Provision (benefit) for recourse liability (1,989) (1,715)
Net charge-offs (698) (3,188)
Balance as of end of period $ 4,211 $ 6,897