Loans and Allowance for Credit Losses - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Receivables [Abstract]
Accrued interest receivable	$ 45,900	$ 45,900
Mortgage loans held-for-sale	54,100	34,300
Unfunded loan commitments	3,000,000	2,900,000
Unfunded letters of credit outstanding	82,800	89,100
Nonaccrual	44,663	35,994
Non-accrual business loans, no allowance	16,900	11,300
Interest income	$ 1,400	1,200
Default period of loans (in days)	90 days
Commitment to lend	$ 600	$ 1,000