Allowance for Credit Losses - Credit Quality Indicators by Commercial and Industrial Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans and leases, net of unearned income and deferred costs and fees	$ 5,162,503	$ 5,075,467
Commercial and industrial | Commercial and industrial other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	78,886	124,331
One year before current fiscal year	106,637	59,786
Two years before current fiscal year	48,800	54,613
Three years before current fiscal year	49,212	42,768
Four years before current fiscal year	39,180	35,926
Prior	171,126	240,123
Revolving Loans Amortized Cost Basis	221,050	131,535
Revolving Loans Converted to Term	2,946	10,039
Total loans and leases, net of unearned income and deferred costs and fees	717,837	699,121
Commercial and industrial | Commercial and industrial other | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	78,886	123,996
One year before current fiscal year	106,368	58,432
Two years before current fiscal year	47,449	54,116
Three years before current fiscal year	48,848	42,093
Four years before current fiscal year	38,634	35,725
Prior	169,002	239,093
Revolving Loans Amortized Cost Basis	214,034	125,476
Revolving Loans Converted to Term	2,946	10,039
Total loans and leases, net of unearned income and deferred costs and fees	706,167	688,970
Commercial and industrial | Commercial and industrial other | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	0	156
One year before current fiscal year	142	770
Two years before current fiscal year	829	450
Three years before current fiscal year	298	100
Four years before current fiscal year	62	201
Prior	1,483	393
Revolving Loans Amortized Cost Basis	556	1,417
Revolving Loans Converted to Term	0	0
Total loans and leases, net of unearned income and deferred costs and fees	3,370	3,487
Commercial and industrial | Commercial and industrial other | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	0	179
One year before current fiscal year	127	584
Two years before current fiscal year	522	47
Three years before current fiscal year	66	575
Four years before current fiscal year	484	0
Prior	641	637
Revolving Loans Amortized Cost Basis	6,460	4,642
Revolving Loans Converted to Term	0	0
Total loans and leases, net of unearned income and deferred costs and fees	8,300	6,664
Commercial and industrial | PPP loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	0	71,260
One year before current fiscal year	3,086	0
Two years before current fiscal year	413	0
Three years before current fiscal year	0	0
Four years before current fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total loans and leases, net of unearned income and deferred costs and fees	3,499	71,260
Commercial and industrial | PPP loans | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	0	71,260
One year before current fiscal year	3,086	0
Two years before current fiscal year	413	0
Three years before current fiscal year	0	0
Four years before current fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total loans and leases, net of unearned income and deferred costs and fees	3,499	71,260
Commercial and industrial | PPP loans | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	0	0
One year before current fiscal year	0	0
Two years before current fiscal year	0	0
Three years before current fiscal year	0	0
Four years before current fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total loans and leases, net of unearned income and deferred costs and fees	0	0
Commercial and industrial | PPP loans | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	0	0
One year before current fiscal year	0	0
Two years before current fiscal year	0	0
Three years before current fiscal year	0	0
Four years before current fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total loans and leases, net of unearned income and deferred costs and fees	0	0
Commercial and industrial | Agriculture
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	8,481	8,573
One year before current fiscal year	6,259	6,867
Two years before current fiscal year	6,003	5,711
Three years before current fiscal year	4,850	10,159
Four years before current fiscal year	8,762	6,960
Prior	8,601	5,502
Revolving Loans Amortized Cost Basis	26,335	54,805
Revolving Loans Converted to Term	0	595
Total loans and leases, net of unearned income and deferred costs and fees	69,291	99,172
Commercial and industrial | Agriculture | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	8,481	8,573
One year before current fiscal year	6,259	6,782
Two years before current fiscal year	5,925	5,700
Three years before current fiscal year	4,850	10,136
Four years before current fiscal year	8,762	6,867
Prior	6,290	3,186
Revolving Loans Amortized Cost Basis	24,915	53,145
Revolving Loans Converted to Term	0	595
Total loans and leases, net of unearned income and deferred costs and fees	65,482	94,984
Commercial and industrial | Agriculture | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	0	0
One year before current fiscal year	0	0
Two years before current fiscal year	0	0
Three years before current fiscal year	0	23
Four years before current fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total loans and leases, net of unearned income and deferred costs and fees	0	23
Commercial and industrial | Agriculture | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	0	0
One year before current fiscal year	0	85
Two years before current fiscal year	78	11
Three years before current fiscal year	0	0
Four years before current fiscal year	0	93
Prior	2,311	2,316
Revolving Loans Amortized Cost Basis	1,420	1,660
Revolving Loans Converted to Term	0	0
Total loans and leases, net of unearned income and deferred costs and fees	3,809	4,165
Commercial real estate | Commercial and industrial other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	206,650	329,356
One year before current fiscal year	367,731	273,443
Two years before current fiscal year	295,459	263,300
Three years before current fiscal year	306,414	207,727
Four years before current fiscal year	218,619	223,667
Prior	929,946	892,837
Revolving Loans Amortized Cost Basis	16,236	45,044
Revolving Loans Converted to Term	20,735	43,225
Total loans and leases, net of unearned income and deferred costs and fees	2,361,790	2,278,599
Commercial real estate | Commercial and industrial other | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	206,650	325,874
One year before current fiscal year	364,170	271,680
Two years before current fiscal year	293,749	249,266
Three years before current fiscal year	291,194	201,992
Four years before current fiscal year	213,218	212,991
Prior	857,789	810,713
Revolving Loans Amortized Cost Basis	15,881	44,264
Revolving Loans Converted to Term	20,735	43,225
Total loans and leases, net of unearned income and deferred costs and fees	2,263,386	2,160,005
Commercial real estate | Commercial and industrial other | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	0	0
One year before current fiscal year	3,448	1,763
Two years before current fiscal year	1,710	11,772
Three years before current fiscal year	11,618	3,217
Four years before current fiscal year	2,993	2,167
Prior	48,522	61,723
Revolving Loans Amortized Cost Basis	0	358
Revolving Loans Converted to Term	0	0
Total loans and leases, net of unearned income and deferred costs and fees	68,291	81,000
Commercial real estate | Commercial and industrial other | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	0	3,482
One year before current fiscal year	113	0
Two years before current fiscal year	0	2,262
Three years before current fiscal year	3,602	2,518
Four years before current fiscal year	2,408	8,509
Prior	23,635	20,401
Revolving Loans Amortized Cost Basis	355	422
Revolving Loans Converted to Term	0	0
Total loans and leases, net of unearned income and deferred costs and fees	30,113	37,594
Commercial real estate | Agriculture
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	15,796	23,151
One year before current fiscal year	22,452	22,335
Two years before current fiscal year	21,568	28,943
Three years before current fiscal year	26,625	41,103
Four years before current fiscal year	38,780	23,195
Prior	70,406	52,412
Revolving Loans Amortized Cost Basis	3,202	1,984
Revolving Loans Converted to Term	1,260	2,850
Total loans and leases, net of unearned income and deferred costs and fees	200,089	195,973
Commercial real estate | Agriculture | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	15,796	23,151
One year before current fiscal year	22,452	21,856
Two years before current fiscal year	21,568	28,943
Three years before current fiscal year	26,406	41,064
Four years before current fiscal year	38,742	23,195
Prior	69,521	50,809
Revolving Loans Amortized Cost Basis	3,202	1,949
Revolving Loans Converted to Term	1,260	2,850
Total loans and leases, net of unearned income and deferred costs and fees	198,947	193,817
Commercial real estate | Agriculture | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	0	0
One year before current fiscal year	0	479
Two years before current fiscal year	0	0
Three years before current fiscal year	219	0
Four years before current fiscal year	0	0
Prior	391	350
Revolving Loans Amortized Cost Basis	0	35
Revolving Loans Converted to Term	0	0
Total loans and leases, net of unearned income and deferred costs and fees	610	864
Commercial real estate | Agriculture | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	0	0
One year before current fiscal year	0	0
Two years before current fiscal year	0	0
Three years before current fiscal year	0	39
Four years before current fiscal year	38	0
Prior	494	1,253
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total loans and leases, net of unearned income and deferred costs and fees	532	1,292
Commercial real estate | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	5,636	12,840
One year before current fiscal year	64,721	10,025
Two years before current fiscal year	67,810	16,325
Three years before current fiscal year	26,733	7,542
Four years before current fiscal year	9,751	1,274
Prior	14,156	7,202
Revolving Loans Amortized Cost Basis	19,189	113,337
Revolving Loans Converted to Term	699	10,037
Total loans and leases, net of unearned income and deferred costs and fees	208,695	178,582
Commercial real estate | Construction | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	5,636	12,840
One year before current fiscal year	64,721	10,025
Two years before current fiscal year	67,810	16,325
Three years before current fiscal year	26,733	7,542
Four years before current fiscal year	9,751	1,274
Prior	14,156	6,559
Revolving Loans Amortized Cost Basis	19,189	112,537
Revolving Loans Converted to Term	699	10,037
Total loans and leases, net of unearned income and deferred costs and fees	208,695	177,139
Commercial real estate | Construction | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	0	0
One year before current fiscal year	0	0
Two years before current fiscal year	0	0
Three years before current fiscal year	0	0
Four years before current fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total loans and leases, net of unearned income and deferred costs and fees	0	0
Commercial real estate | Construction | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current fiscal year	0	0
One year before current fiscal year	0	0
Two years before current fiscal year	0	0
Three years before current fiscal year	0	0
Four years before current fiscal year	0	0
Prior	0	643
Revolving Loans Amortized Cost Basis	0	800
Revolving Loans Converted to Term	0	0
Total loans and leases, net of unearned income and deferred costs and fees	$ 0	$ 1,443