Loans and Leases - Summary of Loans by Risk Category (Details) - USD ($) $ in Thousands		3 Months Ended		12 Months Ended
		Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		$ 412,258		$ 1,352,734
Originated one year before fiscal year		1,201,861		1,206,325
Originated two years before fiscal year		1,162,502		1,025,875
Originated three years before fiscal year		969,904		536,750
Originated four years before fiscal year		482,594		430,610
Prior		1,675,304		1,336,994
Revolving Loans		298,404		269,908
Revolving Loans Converted to Term		8,705		11,007
Total Loans	[1]	6,202,827		6,159,196
Originated fiscal year, charge-offs		336		2,794
Originated one year before fiscal year, charge-offs		1,239		3,706
Originated two years before fiscal year, charge-offs		1,321		2,326
Originated three years before fiscal year, charge-offs		419		652
Originated four years before fiscal year, charge-offs		167		415
Prior, charge-offs		392		1,587
Total Loans, charge-offs		3,874	$ 1,855	11,480
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		13,704		81,473
Originated one year before fiscal year		95,699		146,592
Originated two years before fiscal year		127,280		85,913
Originated three years before fiscal year		56,375		27,169
Originated four years before fiscal year		3,724		9,995
Prior		17,905		12,877
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		314,687		364,019
Originated fiscal year, charge-offs		0		0
Originated one year before fiscal year, charge-offs		0		0
Originated two years before fiscal year, charge-offs		0		9
Originated three years before fiscal year, charge-offs		0		0
Originated four years before fiscal year, charge-offs		0		0
Prior, charge-offs		0		0
Total Loans, charge-offs		0	9	9
Commercial real estate, other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		36,998		200,851
Originated one year before fiscal year		207,651		343,158
Originated two years before fiscal year		374,742		377,480
Originated three years before fiscal year		398,749		246,607
Originated four years before fiscal year		239,993		271,145
Prior		940,901		719,674
Revolving Loans		44,746		38,042
Revolving Loans Converted to Term		224		230
Total Loans		2,243,780		2,196,957
Originated fiscal year, charge-offs		0		0
Originated one year before fiscal year, charge-offs		0		0
Originated two years before fiscal year, charge-offs		212		0
Originated three years before fiscal year, charge-offs		0		39
Originated four years before fiscal year, charge-offs		0		0
Prior, charge-offs		0		575
Total Loans, charge-offs		212	33	614
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		60,989		226,512
Originated one year before fiscal year		228,060		198,560
Originated two years before fiscal year		184,588		218,575
Originated three years before fiscal year		196,124		102,274
Originated four years before fiscal year		92,861		61,758
Prior		198,361		145,468
Revolving Loans		253,632		231,839
Revolving Loans Converted to Term		7,415		9,431
Total Loans		1,214,615		1,184,986
Originated fiscal year, charge-offs		0		0
Originated one year before fiscal year, charge-offs		0		36
Originated two years before fiscal year, charge-offs		0		202
Originated three years before fiscal year, charge-offs		15		25
Originated four years before fiscal year, charge-offs		57		173
Prior, charge-offs		163		415
Total Loans, charge-offs		235	1	851
Premium finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		134,052		201,659
Originated one year before fiscal year		104,528		1,517
Originated two years before fiscal year		382		1
Originated three years before fiscal year		0		0
Originated four years before fiscal year		0		0
Prior		0		0
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		238,962		203,177
Originated fiscal year, charge-offs		0		25
Originated one year before fiscal year, charge-offs		31		97
Originated two years before fiscal year, charge-offs		23		0
Originated three years before fiscal year, charge-offs		0		0
Originated four years before fiscal year, charge-offs		0		0
Prior, charge-offs		0		0
Total Loans, charge-offs		54	23	122
Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		74,212		218,859
Originated one year before fiscal year		181,311		118,862
Originated two years before fiscal year		106,368		54,727
Originated three years before fiscal year		47,273		14,590
Originated four years before fiscal year		11,063		5,205
Prior		2,467		1,817
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		422,694		414,060
Originated fiscal year, charge-offs		0		963
Originated one year before fiscal year, charge-offs		596		1,328
Originated two years before fiscal year, charge-offs		454		1,173
Originated three years before fiscal year, charge-offs		169		233
Originated four years before fiscal year, charge-offs		28		165
Prior, charge-offs		23		135
Total Loans, charge-offs		1,270	469	3,997
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		13,458		76,000
Originated one year before fiscal year		73,969		91,749
Originated two years before fiscal year		89,706		140,742
Originated three years before fiscal year		137,801		58,326
Originated four years before fiscal year		57,493		46,036
Prior		409,461		378,242
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		781,888		791,095
Originated fiscal year, charge-offs		0		0
Originated one year before fiscal year, charge-offs		0		0
Originated two years before fiscal year, charge-offs		0		0
Originated three years before fiscal year, charge-offs		5		0
Originated four years before fiscal year, charge-offs		0		0
Prior, charge-offs		75		170
Total Loans, charge-offs		80	41	170
Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		18,738		39,725
Originated one year before fiscal year		40,904		42,565
Originated two years before fiscal year		41,134		33,467
Originated three years before fiscal year		31,852		19,872
Originated four years before fiscal year		18,951		14,420
Prior		69,474		58,599
Revolving Loans		26		27
Revolving Loans Converted to Term		1,066		1,346
Total Loans		221,079		208,675
Originated fiscal year, charge-offs		0		0
Originated one year before fiscal year, charge-offs		0		0
Originated two years before fiscal year, charge-offs		0		0
Originated three years before fiscal year, charge-offs		0		0
Originated four years before fiscal year, charge-offs		0		0
Prior, charge-offs		0		110
Total Loans, charge-offs		0	19	110
Consumer, indirect
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		42,573		248,169
Originated one year before fiscal year		233,703		226,193
Originated two years before fiscal year		205,716		97,489
Originated three years before fiscal year		86,555		59,602
Originated four years before fiscal year		51,432		18,836
Prior		30,249		16,183
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		650,228		666,472
Originated fiscal year, charge-offs		0		609
Originated one year before fiscal year, charge-offs		564		2,091
Originated two years before fiscal year, charge-offs		550		865
Originated three years before fiscal year, charge-offs		219		255
Originated four years before fiscal year, charge-offs		75		63
Prior, charge-offs		53		147
Total Loans, charge-offs		1,461	929	4,030
Consumer, direct
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		16,228		58,500
Originated one year before fiscal year		36,036		37,129
Originated two years before fiscal year		32,586		17,481
Originated three years before fiscal year		15,175		8,310
Originated four years before fiscal year		7,077		3,215
Prior		6,486		4,134
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		113,588		128,769
Originated fiscal year, charge-offs		0		36
Originated one year before fiscal year, charge-offs		48		154
Originated two years before fiscal year, charge-offs		82		77
Originated three years before fiscal year, charge-offs		11		100
Originated four years before fiscal year, charge-offs		7		14
Prior, charge-offs		78		35
Total Loans, charge-offs		226	104	416
Deposit account overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		1,306		986
Originated one year before fiscal year		0		0
Originated two years before fiscal year		0		0
Originated three years before fiscal year		0		0
Originated four years before fiscal year		0		0
Prior		0		0
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		1,306		986
Originated fiscal year, charge-offs		336		1,161
Originated one year before fiscal year, charge-offs		0
Originated two years before fiscal year, charge-offs		0
Originated three years before fiscal year, charge-offs		0
Originated four years before fiscal year, charge-offs		0
Prior, charge-offs		0
Total Loans, charge-offs		336	$ 227	1,161
Pass | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		13,704		80,273
Originated one year before fiscal year		94,507		141,245
Originated two years before fiscal year		124,789		85,913
Originated three years before fiscal year		56,375		27,169
Originated four years before fiscal year		3,724		9,995
Prior		17,756		12,723
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		310,855		357,318
Pass | Commercial real estate, other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		36,998		199,565
Originated one year before fiscal year		206,459		327,762
Originated two years before fiscal year		356,061		366,752
Originated three years before fiscal year		380,773		227,604
Originated four years before fiscal year		224,446		262,099
Prior		873,082		650,265
Revolving Loans		44,060		37,177
Revolving Loans Converted to Term		186		189
Total Loans		2,121,879		2,071,224
Pass | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		60,989		225,894
Originated one year before fiscal year		224,493		180,068
Originated two years before fiscal year		168,480		212,938
Originated three years before fiscal year		164,175		86,934
Originated four years before fiscal year		78,926		55,434
Prior		186,985		132,675
Revolving Loans		228,165		213,714
Revolving Loans Converted to Term		1,137		38
Total Loans		1,112,213		1,107,657
Pass | Premium finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		134,052		201,659
Originated one year before fiscal year		104,528		1,517
Originated two years before fiscal year		382		1
Originated three years before fiscal year		0		0
Originated four years before fiscal year		0		0
Prior		0		0
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		238,962		203,177
Pass | Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		74,212		216,559
Originated one year before fiscal year		177,358		114,327
Originated two years before fiscal year		100,634		51,307
Originated three years before fiscal year		44,614		14,061
Originated four years before fiscal year		10,630		4,883
Prior		2,054		1,501
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		409,502		402,638
Pass | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		13,458		75,957
Originated one year before fiscal year		73,850		91,506
Originated two years before fiscal year		89,518		140,157
Originated three years before fiscal year		137,348		58,144
Originated four years before fiscal year		57,315		45,507
Prior		400,297		369,552
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		771,786		780,823
Pass | Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		18,738		39,706
Originated one year before fiscal year		40,864		42,565
Originated two years before fiscal year		41,076		33,406
Originated three years before fiscal year		31,757		19,838
Originated four years before fiscal year		18,917		14,297
Prior		68,214		57,482
Revolving Loans		26		27
Revolving Loans Converted to Term		1,066		1,346
Total Loans		219,592		207,321
Pass | Consumer, indirect
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		42,573		247,829
Originated one year before fiscal year		232,913		225,225
Originated two years before fiscal year		204,737		96,698
Originated three years before fiscal year		85,796		59,044
Originated four years before fiscal year		50,864		18,644
Prior		29,835		15,977
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		646,718		663,417
Pass | Consumer, direct
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		16,228		58,445
Originated one year before fiscal year		35,984		37,050
Originated two years before fiscal year		32,493		17,434
Originated three years before fiscal year		15,127		8,282
Originated four years before fiscal year		7,061		3,185
Prior		6,405		4,081
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		113,298		128,477
Special mention | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		0		0
Originated one year before fiscal year		0		3,757
Originated two years before fiscal year		918		0
Originated three years before fiscal year		0		0
Originated four years before fiscal year		0		0
Prior		121		123
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		1,039		3,880
Special mention | Commercial real estate, other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		0		999
Originated one year before fiscal year		751		12,975
Originated two years before fiscal year		16,484		4,850
Originated three years before fiscal year		3,660		10,324
Originated four years before fiscal year		7,038		7,074
Prior		21,538		22,186
Revolving Loans		394		408
Revolving Loans Converted to Term		38		41
Total Loans		49,865		58,816
Special mention | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		0		540
Originated one year before fiscal year		3,474		12,051
Originated two years before fiscal year		11,329		533
Originated three years before fiscal year		1,562		9,723
Originated four years before fiscal year		9,340		4,722
Prior		5,517		6,336
Revolving Loans		23,638		16,236
Revolving Loans Converted to Term		5,500		8,614
Total Loans		54,860		50,141
Special mention | Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		0		363
Originated one year before fiscal year		1,575		1,529
Originated two years before fiscal year		1,179		476
Originated three years before fiscal year		295		81
Originated four years before fiscal year		105		1
Prior		0		5
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		3,154		2,455
Substandard | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		0		1,200
Originated one year before fiscal year		1,192		1,590
Originated two years before fiscal year		1,573		0
Originated three years before fiscal year		0		0
Originated four years before fiscal year		0		0
Prior		28		31
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		2,793		2,821
Substandard | Commercial real estate, other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		0		287
Originated one year before fiscal year		441		2,421
Originated two years before fiscal year		2,197		5,878
Originated three years before fiscal year		14,316		8,679
Originated four years before fiscal year		8,509		1,972
Prior		46,271		47,213
Revolving Loans		292		457
Revolving Loans Converted to Term		0		0
Total Loans		72,026		66,907
Substandard | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		0		78
Originated one year before fiscal year		93		6,441
Originated two years before fiscal year		2,868		5,104
Originated three years before fiscal year		30,387		5,617
Originated four years before fiscal year		4,595		1,602
Prior		5,685		6,278
Revolving Loans		1,829		1,889
Revolving Loans Converted to Term		778		779
Total Loans		45,457		27,009
Substandard | Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		0		1,937
Originated one year before fiscal year		2,378		3,006
Originated two years before fiscal year		4,555		2,944
Originated three years before fiscal year		2,364		448
Originated four years before fiscal year		328		321
Prior		413		311
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		10,038		8,967
Substandard | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		0		43
Originated one year before fiscal year		119		243
Originated two years before fiscal year		188		585
Originated three years before fiscal year		453		182
Originated four years before fiscal year		178		529
Prior		9,082		8,604
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		10,020		10,186
Substandard | Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		0		19
Originated one year before fiscal year		40		0
Originated two years before fiscal year		58		61
Originated three years before fiscal year		95		34
Originated four years before fiscal year		34		123
Prior		1,252		1,109
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		1,479		1,346
Substandard | Consumer, indirect
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		0		333
Originated one year before fiscal year		760		934
Originated two years before fiscal year		934		789
Originated three years before fiscal year		756		558
Originated four years before fiscal year		568		190
Prior		412		206
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		3,430		3,010
Substandard | Consumer, direct
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		0		55
Originated one year before fiscal year		52		79
Originated two years before fiscal year		93		47
Originated three years before fiscal year		48		28
Originated four years before fiscal year		16		30
Prior		75		27
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		284		266
Doubtful | Commercial real estate, other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		0		0
Originated one year before fiscal year		0		0
Originated two years before fiscal year		0		0
Originated three years before fiscal year		0		0
Originated four years before fiscal year		0		0
Prior		10		10
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		10		10
Doubtful | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		0		0
Originated one year before fiscal year		0		0
Originated two years before fiscal year		1,911		0
Originated three years before fiscal year		0		0
Originated four years before fiscal year		0		0
Prior		174		179
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		2,085		179
Loss | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		0		0
Originated one year before fiscal year		0		0
Originated two years before fiscal year		0		0
Originated three years before fiscal year		0		0
Originated four years before fiscal year		0		0
Prior		82		86
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		82		86
Loss | Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		0		0
Originated one year before fiscal year		0		0
Originated two years before fiscal year		0		0
Originated three years before fiscal year		0		0
Originated four years before fiscal year		0		0
Prior		8		8
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		8		8
Loss | Consumer, indirect
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		0		7
Originated one year before fiscal year		30		34
Originated two years before fiscal year		45		2
Originated three years before fiscal year		3		0
Originated four years before fiscal year		0		2
Prior		2		0
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		80		45
Loss | Consumer, direct
Accounts, Notes, Loans and Financing Receivable [Line Items]
Originated fiscal year		0		0
Originated one year before fiscal year		0		0
Originated two years before fiscal year		0		0
Originated three years before fiscal year		0		0
Originated four years before fiscal year		0		0
Prior		6		26
Revolving Loans		0		0
Revolving Loans Converted to Term		0		0
Total Loans		$ 6		$ 26

[1] Also referred to throughout this Quarterly Report on Form 10-Q as "total loans" and "loans held for investment."