Loans and Allowance for Credit Losses - Allowance for Credit Loss Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	$ 107,966	$ 101,340
Provision for credit losses on loans	1,809	19,240
Charge-offs	(12,188)	(24,638)
Recoveries	3,907	11,456
Net (Charge-offs)/ Recoveries	(8,281)	(13,182)
Balance at End of Period	101,494	107,966
Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period		568
Commercial Loans | Commercial real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	37,886	41,428
Provision for credit losses on loans	(4,295)	(2,803)
Charge-offs	(5,205)	(1,706)
Recoveries	1,868	967
Net (Charge-offs)/ Recoveries	(3,337)	(739)
Balance at End of Period	30,254	37,886
Commercial Loans | Commercial real estate | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period		0
Commercial Loans | Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	34,538	25,710
Provision for credit losses on loans	3,939	18,366
Charge-offs	(2,436)	(19,254)
Recoveries	1,043	9,641
Net (Charge-offs)/ Recoveries	(1,393)	(9,613)
Balance at End of Period	37,084	34,538
Commercial Loans | Commercial and industrial | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period		75
Commercial Loans | Commercial construction
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	5,382	6,264
Provision for credit losses on loans	(489)	(648)
Charge-offs	0	(451)
Recoveries	0	2
Net (Charge-offs)/ Recoveries	0	(449)
Balance at End of Period	4,893	5,382
Commercial Loans | Commercial construction | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period		215
Commercial Loans | Business banking
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	12,858	12,547
Provision for credit losses on loans	(627)	1,088
Charge-offs	(1,745)	(1,306)
Recoveries	195	278
Net (Charge-offs)/ Recoveries	(1,550)	(1,028)
Balance at End of Period	10,681	12,858
Commercial Loans | Business banking | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period		251
Consumer Loans | Consumer real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	14,663	12,105
Provision for credit losses on loans	2,184	2,493
Charge-offs	(1,348)	(421)
Recoveries	277	208
Net (Charge-offs)/ Recoveries	(1,071)	(213)
Balance at End of Period	15,776	14,663
Consumer Loans | Consumer real estate | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period		278
Consumer Loans | Other consumer
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	2,639	3,286
Provision for credit losses on loans	1,097	744
Charge-offs	(1,454)	(1,500)
Recoveries	524	360
Net (Charge-offs)/ Recoveries	(930)	(1,140)
Balance at End of Period	$ 2,806	2,639
Consumer Loans | Other consumer | Cumulative Effect, Period of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period		$ (251)