Loans and Leases - Loan Balances By Classification (Details) - USD ($) $ in Thousands		Mar. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable	[1]	$ 4,547,153	$ 4,481,600
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		238,305	210,232
Commercial real estate, other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		1,457,232	1,550,081
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		887,151	891,392
Premium finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		145,813	136,136
Leases
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		267,068	122,508
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		756,429	771,718
Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		162,288	163,593
Consumer, indirect
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		524,778	530,532
Consumer, direct
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		107,390	104,652
Deposit account overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		699	756
Total loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable		$ 4,547,153	$ 4,481,600

[1] Also referred to throughout this document as "total loans" and "loans held for investment."