Loans and Leases - Aging of the Recorded Investment in Past Due Loans and Leases (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable	[1]	$ 4,575,905	$ 4,481,600
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		202,588	210,232
Commercial real estate, other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		1,460,023	1,550,081
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		858,452	891,392
Premium finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		152,237	136,136
Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		314,522	122,508
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		743,005	771,718
Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		169,335	163,593
Consumer, indirect
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		563,088	530,532
Consumer, direct
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		111,804	104,652
Deposit account overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		851	756
Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		54,499	52,549
Total | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		5	748
Total | Commercial real estate, other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		17,231	17,052
Total | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		4,523	6,005
Total | Premium finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		938	1,882
Total | Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		12,390	2,254
Total | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		12,072	15,705
Total | Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		1,771	2,381
Total | Consumer, indirect
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		5,130	5,730
Total | Consumer, direct
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		439	792
Total | Deposit account overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		0	0
30 - 59 days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		15,525	19,948
30 - 59 days | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		5	658
30 - 59 days | Commercial real estate, other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		2,294	2,891
30 - 59 days | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		2,385	1,132
30 - 59 days | Premium finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		444	751
30 - 59 days | Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		789	426
30 - 59 days | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		4,465	8,276
30 - 59 days | Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		927	1,137
30 - 59 days | Consumer, indirect
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		3,859	4,220
30 - 59 days | Consumer, direct
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		357	457
30 - 59 days | Deposit account overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		0	0
60 - 89 days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		15,393	7,281
60 - 89 days | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		0	0
60 - 89 days | Commercial real estate, other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		4,133	1,600
60 - 89 days | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		200	1,278
60 - 89 days | Premium finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		190	266
60 - 89 days | Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		7,665	247
60 - 89 days | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		2,091	2,241
60 - 89 days | Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		290	619
60 - 89 days | Consumer, indirect
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		776	895
60 - 89 days | Consumer, direct
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		48	135
60 - 89 days | Deposit account overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		0	0
90 + Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		23,581	25,320
90 + Days | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		0	90
90 + Days | Commercial real estate, other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		10,804	12,561
90 + Days | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		1,938	3,595
90 + Days | Premium finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		304	865
90 + Days | Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		3,936	1,581
90 + Days | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		5,516	5,188
90 + Days | Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		554	625
90 + Days | Consumer, indirect
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		495	615
90 + Days | Consumer, direct
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		34	200
90 + Days | Deposit account overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		0	0
Current Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		4,521,406	4,429,051
Current Loans | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		202,583	209,484
Current Loans | Commercial real estate, other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		1,442,792	1,533,029
Current Loans | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		853,929	885,387
Current Loans | Premium finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		151,299	134,254
Current Loans | Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		302,132	120,254
Current Loans | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		730,933	756,013
Current Loans | Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		167,564	161,212
Current Loans | Consumer, indirect
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		557,958	524,802
Current Loans | Consumer, direct
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		111,365	103,860
Current Loans | Deposit account overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		$ 851	$ 756

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