Lease Commitments - Supplemental Balance Sheet and Cash Flow Information Related to Operating Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Leases [Abstract]
Operating lease ROUAs	$ 57,925	$ 40,935
Other assets [Extensible Enumeration]	Other assets	Other assets
Operating lease liabilities	$ 62,322	$ 44,717
Other liabilities [Extensible Enumeration]	Other liabilities	Other liabilities
Cash paid during the year for amounts included in the measurement of operating lease liabilities	$ 11,764	$ 10,600
ROUAs recorded during the year in exchange for new or renewed operating lease obligations	16,540	2,815
ROUAs obtained during the year through bank acquisition	$ 9,906	$ 0
Weighted-average remaining lease term for operating leases	7 years 3 months 18 days	6 years 4 months 24 days
Weighted-average discount rate for operating leases	5.17%	5.10%