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Loans - Schedule of Loan Ratings by Loan Class (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	$ 4,308,099		$ 4,276,285
Accrued interest excluded from total	14,078		13,952
Current period gross charge-offs	765	$ 618
Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, year one, originated, current fiscal year	94,228		413,589
Financing receivable, year two, originated, fiscal year before current fiscal year	455,152		356,200
Financing receivable, year three, originated, two years before current fiscal year	357,695		325,344
Financing receivable, year four, originated, three years before current fiscal year	325,845		292,058
Financing receivable, year five, originated, four years before current fiscal year	273,669		114,230
Financing receivable, originated, more than five years before current fiscal year	351,295		339,733
Revolving Loans Amortized Cost Basis	409,485		372,403
Total loans	2,267,369		2,213,557
Accrued interest, current fiscal year	303		1,259
Accrued interest, fiscal year before current	1,319		1,125
Accrued interest, two years before current	1,182		971
Accrued interest, three years before current	1,026		912
Accrued interest, four years before current	801		236
Accrued interest, more than five years before current fiscal year	1,019		1,121
Accrued interest, revolving	1,420		1,277
Accrued interest excluded from total	7,070		6,901
Gross charge-offs, current fiscal year	0		0
Gross charge-offs, fiscal year before current	0		0
Gross charge-offs, two years before current	0		0
Gross charge-offs, three years before current	37		0
Gross charge-offs, four years before current	0		0
Gross charge-offs, more than five years before current	0		0
Gross charge-offs, revolving	0		0
Current period gross charge-offs	37	$ 0	0
Commercial | Non-watch (1-6)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, year one, originated, current fiscal year	94,228		403,922
Financing receivable, year two, originated, fiscal year before current fiscal year	444,593		351,266
Financing receivable, year three, originated, two years before current fiscal year	348,887		298,293
Financing receivable, year four, originated, three years before current fiscal year	286,018		275,466
Financing receivable, year five, originated, four years before current fiscal year	257,692		111,232
Financing receivable, originated, more than five years before current fiscal year	339,991		325,606
Revolving Loans Amortized Cost Basis	392,355		357,151
Total loans	2,163,764		2,122,936
Commercial | Watch (7-8)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, year one, originated, current fiscal year	0		501
Financing receivable, year two, originated, fiscal year before current fiscal year	1,776		2,734
Financing receivable, year three, originated, two years before current fiscal year	6,743		8,492
Financing receivable, year four, originated, three years before current fiscal year	21,161		16,592
Financing receivable, year five, originated, four years before current fiscal year	15,977		2,052
Financing receivable, originated, more than five years before current fiscal year	10,230		13,200
Revolving Loans Amortized Cost Basis	9,902		9,473
Total loans	65,789		53,044
Commercial | Substandard Accrual (9)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, year one, originated, current fiscal year	0		4,288
Financing receivable, year two, originated, fiscal year before current fiscal year	537		1,710
Financing receivable, year three, originated, two years before current fiscal year	1,575		396
Financing receivable, year four, originated, three years before current fiscal year	392		0
Financing receivable, year five, originated, four years before current fiscal year	0		946
Financing receivable, originated, more than five years before current fiscal year	1,007		927
Revolving Loans Amortized Cost Basis	7,228		5,779
Total loans	10,739		14,046
Commercial | Non-Accrual (10-11)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, year one, originated, current fiscal year	0		4,878
Financing receivable, year two, originated, fiscal year before current fiscal year	8,246		490
Financing receivable, year three, originated, two years before current fiscal year	490		18,163
Financing receivable, year four, originated, three years before current fiscal year	18,274		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	67		0
Revolving Loans Amortized Cost Basis	0		0
Total loans	27,077		23,531
Commercial | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, year one, originated, current fiscal year	52,640		200,779
Financing receivable, year two, originated, fiscal year before current fiscal year	219,794		191,930
Financing receivable, year three, originated, two years before current fiscal year	193,999		135,420
Financing receivable, year four, originated, three years before current fiscal year	131,753		118,223
Financing receivable, year five, originated, four years before current fiscal year	110,778		47,988
Financing receivable, originated, more than five years before current fiscal year	146,702		149,334
Revolving Loans Amortized Cost Basis	349,524		315,167
Total loans	1,205,190		1,158,841
Accrued interest, current fiscal year	200		564
Accrued interest, fiscal year before current	683		570
Accrued interest, two years before current	628		477
Accrued interest, three years before current	531		288
Accrued interest, four years before current	277		95
Accrued interest, more than five years before current fiscal year	417		418
Accrued interest, revolving	1,198		1,139
Accrued interest excluded from total	3,934		3,551
Gross charge-offs, current fiscal year	0		0
Gross charge-offs, fiscal year before current	0		0
Gross charge-offs, two years before current	0		0
Gross charge-offs, three years before current	37		0
Gross charge-offs, four years before current	0		0
Gross charge-offs, more than five years before current	0		0
Gross charge-offs, revolving	0		0
Current period gross charge-offs	37		0
Commercial | Commercial and industrial | Non-watch (1-6)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, year one, originated, current fiscal year	52,640		199,338
Financing receivable, year two, originated, fiscal year before current fiscal year	218,751		188,309
Financing receivable, year three, originated, two years before current fiscal year	186,995		131,090
Financing receivable, year four, originated, three years before current fiscal year	114,724		115,518
Financing receivable, year five, originated, four years before current fiscal year	108,642		45,116
Financing receivable, originated, more than five years before current fiscal year	137,169		140,699
Revolving Loans Amortized Cost Basis	333,019		300,540
Total loans	1,151,940		1,120,610
Commercial | Commercial and industrial | Watch (7-8)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, year one, originated, current fiscal year	0		501
Financing receivable, year two, originated, fiscal year before current fiscal year	506		1,911
Financing receivable, year three, originated, two years before current fiscal year	5,429		4,330
Financing receivable, year four, originated, three years before current fiscal year	17,029		2,705
Financing receivable, year five, originated, four years before current fiscal year	2,136		2,052
Financing receivable, originated, more than five years before current fiscal year	8,459		8,360
Revolving Loans Amortized Cost Basis	9,277		8,848
Total loans	42,836		28,707
Commercial | Commercial and industrial | Substandard Accrual (9)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, year one, originated, current fiscal year	0		940
Financing receivable, year two, originated, fiscal year before current fiscal year	537		1,710
Financing receivable, year three, originated, two years before current fiscal year	1,575		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		820
Financing receivable, originated, more than five years before current fiscal year	1,007		275
Revolving Loans Amortized Cost Basis	7,228		5,779
Total loans	10,347		9,524
Commercial | Commercial and industrial | Non-Accrual (10-11)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		0
Financing receivable, year four, originated, three years before current fiscal year	0		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	67		0
Revolving Loans Amortized Cost Basis	0		0
Total loans	67		0
Commercial | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, year one, originated, current fiscal year	41,588		212,810
Financing receivable, year two, originated, fiscal year before current fiscal year	235,358		164,270
Financing receivable, year three, originated, two years before current fiscal year	163,696		189,924
Financing receivable, year four, originated, three years before current fiscal year	194,092		173,835
Financing receivable, year five, originated, four years before current fiscal year	162,891		66,242
Financing receivable, originated, more than five years before current fiscal year	204,593		190,399
Revolving Loans Amortized Cost Basis	59,961		57,236
Total loans	1,062,179		1,054,716
Accrued interest, current fiscal year	103		695
Accrued interest, fiscal year before current	636		555
Accrued interest, two years before current	554		494
Accrued interest, three years before current	495		624
Accrued interest, four years before current	524		141
Accrued interest, more than five years before current fiscal year	602		703
Accrued interest, revolving	222		138
Accrued interest excluded from total	3,136		3,350
Gross charge-offs, current fiscal year	0		0
Gross charge-offs, fiscal year before current	0		0
Gross charge-offs, two years before current	0		0
Gross charge-offs, three years before current	0		0
Gross charge-offs, four years before current	0		0
Gross charge-offs, more than five years before current	0		0
Gross charge-offs, revolving	0		0
Current period gross charge-offs	0		0
Commercial | Commercial real estate | Non-watch (1-6)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, year one, originated, current fiscal year	41,588		204,584
Financing receivable, year two, originated, fiscal year before current fiscal year	225,842		162,957
Financing receivable, year three, originated, two years before current fiscal year	161,892		167,203
Financing receivable, year four, originated, three years before current fiscal year	171,294		159,948
Financing receivable, year five, originated, four years before current fiscal year	149,050		66,116
Financing receivable, originated, more than five years before current fiscal year	202,822		184,907
Revolving Loans Amortized Cost Basis	59,336		56,611
Total loans	1,011,824		1,002,326
Commercial | Commercial real estate | Watch (7-8)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, year one, originated, current fiscal year	0		0
Financing receivable, year two, originated, fiscal year before current fiscal year	1,270		823
Financing receivable, year three, originated, two years before current fiscal year	1,314		4,162
Financing receivable, year four, originated, three years before current fiscal year	4,132		13,887
Financing receivable, year five, originated, four years before current fiscal year	13,841		0
Financing receivable, originated, more than five years before current fiscal year	1,771		4,840
Revolving Loans Amortized Cost Basis	625		625
Total loans	22,953		24,337
Commercial | Commercial real estate | Substandard Accrual (9)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, year one, originated, current fiscal year	0		3,348
Financing receivable, year two, originated, fiscal year before current fiscal year	0		0
Financing receivable, year three, originated, two years before current fiscal year	0		396
Financing receivable, year four, originated, three years before current fiscal year	392		0
Financing receivable, year five, originated, four years before current fiscal year	0		126
Financing receivable, originated, more than five years before current fiscal year	0		652
Revolving Loans Amortized Cost Basis	0		0
Total loans	392		4,522
Commercial | Commercial real estate | Non-Accrual (10-11)
Financing Receivable, Credit Quality Indicator [Line Items]
Financing receivable, year one, originated, current fiscal year	0		4,878
Financing receivable, year two, originated, fiscal year before current fiscal year	8,246		490
Financing receivable, year three, originated, two years before current fiscal year	490		18,163
Financing receivable, year four, originated, three years before current fiscal year	18,274		0
Financing receivable, year five, originated, four years before current fiscal year	0		0
Financing receivable, originated, more than five years before current fiscal year	0		0
Revolving Loans Amortized Cost Basis	0		0
Total loans	$ 27,010		$ 23,531

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