Fair Value of Assets and Liabilities - Fair Values of Financial Assets and Liabilities on Balance Sheets (Details) - USD ($) $ in Thousands		Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Assets:
Carrying Amount		$ 401,006		$ 374,415
Fair Value		341,088		369,955
Loans and leases, net of deferred fees and costs, Carrying amount	[1]	4,575,905		4,481,600
Liabilities:
Debt securities held to maturity, allowance for credit loss		286		286
Allowance for credit loss		52,346	$ 54,768	63,967	$ 47,942	$ 44,897	$ 50,359
Carrying Amount
Assets:
Cash and cash equivalents		398,385		415,727
Carrying Amount		401,006		374,415
Federal Home Loan Bank ("FHLB") stock		17,308		17,308
Federal Reserve Bank ("FRB") stock		21,226		13,311
Total other investment securities at cost		38,534		30,619
Total other investments		41,329		33,643
Loans and leases, net of deferred fees and costs, Carrying amount		4,575,905		4,481,600
Bank owned life insurance		104,339		73,358
Liabilities:
Deposits		5,929,225		5,862,552
Short-term borrowings		326,442		166,482
Long-term borrowings		123,687		99,475
Fair Value
Assets:
Cash and cash equivalents		398,385		415,727
Fair Value		341,088		369,955
Federal Home Loan Bank ("FHLB") stock		17,308		17,308
Federal Reserve Bank ("FRB") stock		21,226		13,311
Total other investment securities at cost		38,534		30,619
Total other investments		41,329		33,643
Loans and leases, net of deferred fees and costs, Fair value		4,350,080		4,510,605
Bank owned life insurance		104,339		73,358
Liabilities:
Deposits		5,039,094		5,546,552
Short-term borrowings		329,191		164,990
Long-term borrowings		124,728		101,664
U.S. government sponsored agencies
Assets:
Carrying Amount		50,990		36,431
Fair Value		44,438		35,513
Liabilities:
Debt securities held to maturity, allowance for credit loss		0		0
U.S. government sponsored agencies | Carrying Amount
Assets:
Carrying Amount		50,990		36,431
U.S. government sponsored agencies | Fair Value
Assets:
Fair Value		44,438		35,513
States and political subdivisions
Assets:
Carrying Amount		151,320		151,688
Fair Value		122,078		150,138
Liabilities:
Debt securities held to maturity, allowance for credit loss		286		286
States and political subdivisions | Fair Value
Assets:
Fair Value		122,078		150,138
Residential mortgage-backed securities
Assets:
Carrying Amount		112,095		110,708
Fair Value		99,970		110,159
Liabilities:
Debt securities held to maturity, allowance for credit loss		0		0
Residential mortgage-backed securities | Carrying Amount
Assets:
Carrying Amount		112,095		110,708
Residential mortgage-backed securities | Fair Value
Assets:
Fair Value		99,970		110,159
Commercial mortgage-backed securities
Assets:
Carrying Amount		86,601		75,588
Fair Value		74,602		74,145
Liabilities:
Debt securities held to maturity, allowance for credit loss		0		0
Commercial mortgage-backed securities | Carrying Amount
Assets:
Carrying Amount		86,601		75,588
Commercial mortgage-backed securities | Fair Value
Assets:
Fair Value		74,602		74,145
Nonqualified Plan | Carrying Amount
Assets:
Total other investment securities		2,016		2,240
Nonqualified Plan | Fair Value
Assets:
Total other investment securities		2,016		2,240
Other Security Investments | Carrying Amount
Assets:
Total other investment securities		779		784
Other Security Investments | Fair Value
Assets:
Total other investment securities		$ 779		$ 784

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