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Commitments, Contingencies, and Financial Guarantees - Loan Commitments and Standby Letters of Credit (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]    
Unfunded loan commitments $ 8,533,433 $ 8,912,587
Standby letters of credit 194,323 192,237
Cancellable loan commitments 2,500,000 2,300,000
Carrying value of letters of credit $ 1,700 $ 1,300