Loans and Allowance for Credit Losses - Allowance for Credit Loss Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	$ 101,494	$ 107,966
Provision for credit losses on loans	6,182	1,809
Charge-offs	(18,075)	(12,188)
Recoveries	3,577	3,907
Net Charge-offs	(14,498)	(8,281)
Balance at End of Period	93,178	101,494
Commercial loans | Commercial real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	30,254	37,886
Provision for credit losses on loans	6,306	(4,295)
Charge-offs	(7,339)	(5,205)
Recoveries	136	1,868
Net Charge-offs	(7,203)	(3,337)
Balance at End of Period	29,357	30,254
Commercial loans | Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	37,084	34,538
Provision for credit losses on loans	(2,902)	3,939
Charge-offs	(6,723)	(2,436)
Recoveries	1,683	1,043
Net Charge-offs	(5,040)	(1,393)
Balance at End of Period	29,142	37,084
Commercial loans | Commercial construction
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	4,893	5,382
Provision for credit losses on loans	(384)	(489)
Charge-offs	(118)	0
Recoveries	9	0
Net Charge-offs	(109)	0
Balance at End of Period	4,400	4,893
Commercial loans | Business banking
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	10,681	12,858
Provision for credit losses on loans	1,618	(627)
Charge-offs	(1,114)	(1,745)
Recoveries	150	195
Net Charge-offs	(964)	(1,550)
Balance at End of Period	11,335	10,681
Consumer loans | Consumer real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	15,776	14,663
Provision for credit losses on loans	719	2,184
Charge-offs	(828)	(1,348)
Recoveries	630	277
Net Charge-offs	(198)	(1,071)
Balance at End of Period	16,297	15,776
Consumer loans | Other consumer
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	2,806	2,639
Provision for credit losses on loans	825	1,097
Charge-offs	(1,953)	(1,454)
Recoveries	969	524
Net Charge-offs	(984)	(930)
Balance at End of Period	$ 2,647	$ 2,806