Fair Value Measurements (Details 7) - USD ($) $ in Thousands		Dec. 31, 2020	Dec. 31, 2019
Assets:
Cash and due from banks		$ 74,186	$ 67,215
Federal funds sold and interest bearing deposits with other banks		168,861	16,150
Investment securities available-for-sale		1,197,467	1,040,583
Federal Home Loan Bank Stock and Federal Reserve Bank Stock		27,429	28,414
Mortgages held for sale		12,885	20,277
Loans and leases, net of reserve for loan and lease losses		5,348,647	4,974,273
Liabilities:
Long-term debt and mandatorily redeemable securities		81,864	71,639
Subordinated notes		58,764	58,764
Carrying or Contract Value
Assets:
Cash and due from banks		74,186	67,215
Federal funds sold and interest bearing deposits with other banks		168,861	16,150
Investment securities available-for-sale		1,197,467	1,040,583
Federal Home Loan Bank Stock and Federal Reserve Bank Stock		27,429	28,414
Mortgages held for sale		12,885	20,277
Loans and leases, net of reserve for loan and lease losses		5,348,647	4,974,273
Mortgage servicing rights		3,804	4,200
Interest receivable		20,242	19,125
Interest rate swaps		46,654	21,975
Liabilities:
Deposits		5,946,028	5,357,326
Short-term borrowings		150,641	145,893
Long-term debt and mandatorily redeemable securities		81,864	71,639
Subordinated notes		58,764	58,764
Interest payable		3,996	13,918
Interest rate swaps		47,681	22,352
Off-balance-sheet instruments	[1]	0	0
Fair Value
Assets:
Cash and due from banks		74,186	67,215
Federal funds sold and interest bearing deposits with other banks		168,861	16,150
Investment securities available-for-sale		1,197,467	1,040,583
Federal Home Loan Bank Stock and Federal Reserve Bank Stock		27,429	28,414
Mortgages held for sale		12,885	20,277
Loans and leases, net of reserve for loan and lease losses		5,417,396	4,992,684
Mortgage servicing rights		4,038	5,986
Interest receivable		20,242	19,125
Interest rate swaps		46,654	21,975
Liabilities:
Deposits		5,955,545	5,362,633
Short-term borrowings		150,641	145,893
Long-term debt and mandatorily redeemable securities		82,965	71,084
Subordinated notes		58,560	61,469
Interest payable		3,996	13,918
Interest rate swaps		47,681	22,352
Off-balance-sheet instruments	[1]	321	281
Level 1
Assets:
Cash and due from banks		74,186	67,215
Federal funds sold and interest bearing deposits with other banks		168,861	16,150
Investment securities available-for-sale		80,285	80,393
Federal Home Loan Bank Stock and Federal Reserve Bank Stock		27,429	28,414
Mortgages held for sale		0	0
Loans and leases, net of reserve for loan and lease losses		0	0
Mortgage servicing rights		0	0
Interest receivable		0	0
Interest rate swaps		0	0
Liabilities:
Deposits		4,778,671	3,708,828
Short-term borrowings		143,730	120,891
Long-term debt and mandatorily redeemable securities		0	0
Subordinated notes		0	0
Interest payable		0	0
Interest rate swaps		0	0
Off-balance-sheet instruments	[1]	0	0
Level 2
Assets:
Cash and due from banks		0	0
Federal funds sold and interest bearing deposits with other banks		0	0
Investment securities available-for-sale		1,115,030	957,898
Federal Home Loan Bank Stock and Federal Reserve Bank Stock		0	0
Mortgages held for sale		12,885	20,277
Loans and leases, net of reserve for loan and lease losses		0	0
Mortgage servicing rights		0	0
Interest receivable		20,242	19,125
Interest rate swaps		46,654	21,975
Liabilities:
Deposits		1,176,874	1,653,805
Short-term borrowings		6,911	25,002
Long-term debt and mandatorily redeemable securities		82,965	71,084
Subordinated notes		58,560	61,469
Interest payable		3,996	13,918
Interest rate swaps		47,681	22,352
Off-balance-sheet instruments	[1]	321	281
Level 3
Assets:
Cash and due from banks		0	0
Federal funds sold and interest bearing deposits with other banks		0	0
Investment securities available-for-sale		2,152	2,292
Federal Home Loan Bank Stock and Federal Reserve Bank Stock		0	0
Mortgages held for sale		0	0
Loans and leases, net of reserve for loan and lease losses		5,417,396	4,992,684
Mortgage servicing rights		4,038	5,986
Interest receivable		0	0
Interest rate swaps		0	0
Liabilities:
Deposits		0	0
Short-term borrowings		0	0
Long-term debt and mandatorily redeemable securities		0	0
Subordinated notes		0	0
Interest payable		0	0
Interest rate swaps		0	0
Off-balance-sheet instruments	[1]	$ 0	$ 0

[1] Represents estimated cash outflows required to currently settle the obligations at current market rates.