Fair Value Measurements (Details 7) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Assets:
Cash and due from banks	$ 52,373	$ 65,171
Federal funds sold and interest bearing deposits with other banks	32,854	14,550
Investment securities, available-for-sale	801,950	791,727
Other investments	21,973	21,973
Mortgages held for sale	11,999	9,825
Loans and leases, net of reserve for loan and lease losses	3,942,679	3,906,580
Liabilities:
Long-term debt and mandatorily redeemable securities	68,837	57,379
Subordinated notes	58,764	58,764
Carrying or Contract Value
Assets:
Cash and due from banks	52,373	65,171
Federal funds sold and interest bearing deposits with other banks	32,854	14,550
Investment securities, available-for-sale	801,950	791,727
Other investments	21,973	21,973
Mortgages held for sale	11,999	9,825
Loans and leases, net of reserve for loan and lease losses	3,942,679	3,906,580
Mortgage servicing rights	4,481	4,608
Interest rate swaps	14,766	9,859
Liabilities:
Deposits	4,225,148	4,139,186
Short-term borrowings	181,914	233,229
Long-term debt and mandatorily redeemable securities	68,837	57,379
Subordinated notes	58,764	58,764
Interest rate swaps	15,045	10,044
Off-balance-sheet instruments	0	0
Fair Value
Assets:
Cash and due from banks	52,373	65,171
Federal funds sold and interest bearing deposits with other banks	32,854	14,550
Investment securities, available-for-sale	801,950	791,727
Other investments	21,973	21,973
Mortgages held for sale	11,999	9,825
Loans and leases, net of reserve for loan and lease losses	3,964,867	3,927,967
Mortgage servicing rights	6,353	7,246
Interest rate swaps	14,766	9,859
Liabilities:
Deposits	4,231,877	4,139,649
Short-term borrowings	181,914	233,229
Long-term debt and mandatorily redeemable securities	68,662	57,193
Subordinated notes	49,377	48,304
Interest rate swaps	15,045	10,044
Off-balance-sheet instruments	388	375
Level 1
Assets:
Cash and due from banks	52,373	65,171
Federal funds sold and interest bearing deposits with other banks	32,854	14,550
Investment securities, available-for-sale	27,262	27,458
Other investments	21,973	21,973
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 rate swaps	0	0
Liabilities:
Deposits	3,016,933	2,998,443
Short-term borrowings	171,495	134,156
Long-term debt and mandatorily redeemable securities	0	0
Subordinated notes	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	769,069	758,932
Other investments	0	0
Mortgages held for sale	11,999	9,825
Loans and leases, net of reserve for loan and lease losses	0	0
Mortgage servicing rights	0	0
Interest rate swaps	14,766	9,859
Liabilities:
Deposits	1,214,944	1,141,206
Short-term borrowings	10,419	99,073
Long-term debt and mandatorily redeemable securities	68,662	57,193
Subordinated notes	49,377	48,304
Interest rate swaps	15,045	10,044
Off-balance-sheet instruments	388	375
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	5,619	5,337
Other investments	0	0
Mortgages held for sale	0	0
Loans and leases, net of reserve for loan and lease losses	3,964,867	3,927,967
Mortgage servicing rights	6,353	7,246
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 rate swaps	0	0
Off-balance-sheet instruments	$ 0	$ 0