Fair Value Measurements (Details 7) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Assets:
Cash and due from banks	$ 77,740	$ 74,186
Federal funds sold and interest bearing deposits with other banks	559,542	168,861
Investment securities available-for-sale	1,583,240	1,197,467
Other investments	27,189	27,429
Mortgages held for sale	34,594	12,885
Loans and leases, net of allowance for loan and lease losses	5,225,042	5,348,647
Liabilities:
Long-term debt and mandatorily redeemable securities	81,301	81,864
Subordinated notes	58,764	58,764
Carrying or Contract Value
Assets:
Cash and due from banks	77,740	74,186
Federal funds sold and interest bearing deposits with other banks	559,542	168,861
Investment securities available-for-sale	1,583,240	1,197,467
Other investments	27,189	27,429
Mortgages held for sale	34,594	12,885
Loans and leases, net of allowance for loan and lease losses	5,225,042	5,348,647
Mortgage servicing rights	4,519	3,804
Accrued interest receivable	18,556	20,242
Interest rate swaps	28,368	46,654
Liabilities:
Deposits	6,522,505	5,946,028
Short-term borrowings	215,665	150,641
Long-term debt and mandatorily redeemable securities	81,301	81,864
Subordinated notes	58,764	58,764
Accrued interest payable	2,424	3,996
Interest rate swaps	28,975	47,681
Off-balance-sheet instruments	0	0
Fair Value
Assets:
Cash and due from banks	77,740	74,186
Federal funds sold and interest bearing deposits with other banks	559,542	168,861
Investment securities available-for-sale	1,583,240	1,197,467
Other investments	27,189	27,429
Mortgages held for sale	34,594	12,885
Loans and leases, net of allowance for loan and lease losses	5,290,270	5,417,396
Mortgage servicing rights	4,999	4,038
Accrued interest receivable	18,556	20,242
Interest rate swaps	28,368	46,654
Liabilities:
Deposits	6,526,220	5,955,545
Short-term borrowings	215,665	150,641
Long-term debt and mandatorily redeemable securities	81,753	82,965
Subordinated notes	58,537	58,560
Accrued interest payable	2,424	3,996
Interest rate swaps	28,975	47,681
Off-balance-sheet instruments	385	321
Level 1
Assets:
Cash and due from banks	77,740	74,186
Federal funds sold and interest bearing deposits with other banks	559,542	168,861
Investment securities available-for-sale	372,074	80,285
Other investments	27,189	27,429
Mortgages held for sale	0	0
Loans and leases, net of allowance for loan and lease losses	0	0
Mortgage servicing rights	0	0
Accrued interest receivable	0	0
Interest rate swaps	0	0
Liabilities:
Deposits	5,584,989	4,778,671
Short-term borrowings	208,398	143,730
Long-term debt and mandatorily redeemable securities	0	0
Subordinated notes	0	0
Accrued interest payable	0	0
Interest rate swaps	0	0
Off-balance-sheet instruments	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	1,209,337	1,115,030
Other investments	0	0
Mortgages held for sale	34,594	12,885
Loans and leases, net of allowance for loan and lease losses	0	0
Mortgage servicing rights	0	0
Accrued interest receivable	18,556	20,242
Interest rate swaps	28,368	46,654
Liabilities:
Deposits	941,231	1,176,874
Short-term borrowings	7,267	6,911
Long-term debt and mandatorily redeemable securities	81,753	82,965
Subordinated notes	58,537	58,560
Accrued interest payable	2,424	3,996
Interest rate swaps	28,975	47,681
Off-balance-sheet instruments	385	321
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	1,829	2,152
Other investments	0	0
Mortgages held for sale	0	0
Loans and leases, net of allowance for loan and lease losses	5,290,270	5,417,396
Mortgage servicing rights	4,999	4,038
Accrued 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
Accrued interest payable	0	0
Interest rate swaps	0	0
Off-balance-sheet instruments	$ 0	$ 0