Commitments, Contingencies, and Guarantees (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Loan commitments
Long-Term Purchase Commitment [Line Items]
Contractual obligation	$ 2,960,160	$ 2,952,732
Standby letters of credit
Long-Term Purchase Commitment [Line Items]
Contractual obligation	86,306	80,060
Commercial letters of credit
Long-Term Purchase Commitment [Line Items]
Contractual obligation	565	2,703
Credit derivatives
Long-Term Purchase Commitment [Line Items]
Contractual obligation	$ 22,391	$ 19,224