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Fair Value Measurements (Details 2) - USD ($) $ in Thousands | Jun. 30, 2016 | Dec. 31, 2015
--- | --- | ---
Assets: |  |
Investment securities, available-for-sale | $ 814,258 | $ 791,727
Mortgages held for sale | 15,924 | 9,825
U.S. Treasury and Federal agencies securities |  |
Assets: |  |
Investment securities, available-for-sale | 400,131 | 389,669
U.S. States and political subdivisions securities |  |
Assets: |  |
Investment securities, available-for-sale | 129,218 | 122,990
Mortgage-backed securities - Federal agencies |  |
Assets: |  |
Investment securities, available-for-sale | 244,539 | 236,297
Corporate debt securities |  |
Assets: |  |
Investment securities, available-for-sale | 32,430 | 34,383
Foreign government and other securities |  |
Assets: |  |
Investment securities, available-for-sale | 810 | 809
Total debt securities |  |
Assets: |  |
Investment securities, available-for-sale | 807,128 | 784,148
Marketable equity securities |  |
Assets: |  |
Investment securities, available-for-sale | 7,130 | 7,579
Total |  |
Assets: |  |
Investment securities, available-for-sale | 814,258 | 791,727
Mortgages held for sale | 15,924 | 9,825
Level 1 |  |
Assets: |  |
Investment securities, available-for-sale | 27,174 | 27,458
Mortgages held for sale | 0 | 0
Level 2 |  |
Assets: |  |
Investment securities, available-for-sale | 781,613 | 758,932
Mortgages held for sale | 15,924 | 9,825
Level 3 |  |
Assets: |  |
Investment securities, available-for-sale | 5,471 | 5,337
Mortgages held for sale | 0 | 0
Recurring basis | Total |  |
Assets: |  |
Investment securities, available-for-sale | 814,258 | 791,727
Mortgages held for sale | 15,924 | 9,825
Total | 847,194 | 811,411
Liabilities: |  |
Total | 17,334 | 10,044
Recurring basis | Total | Interest rate swap contracts |  |
Assets: |  |
Accrued income and other assets | 17,012 | 9,859
Liabilities: |  |
Accrued expenses and other liabilities | 17,334 | 10,044
Recurring basis | Total | U.S. Treasury and Federal agencies securities |  |
Assets: |  |
Investment securities, available-for-sale | 400,131 | 389,669
Recurring basis | Total | U.S. States and political subdivisions securities |  |
Assets: |  |
Investment securities, available-for-sale | 129,218 | 122,990
Recurring basis | Total | Mortgage-backed securities - Federal agencies |  |
Assets: |  |
Investment securities, available-for-sale | 244,539 | 236,297
Recurring basis | Total | Corporate debt securities |  |
Assets: |  |
Investment securities, available-for-sale | 32,430 | 34,383
Recurring basis | Total | Foreign government and other securities |  |
Assets: |  |
Investment securities, available-for-sale | 810 | 809
Recurring basis | Total | Total debt securities |  |
Assets: |  |
Investment securities, available-for-sale | 807,128 | 784,148
Recurring basis | Total | Marketable equity securities |  |
Assets: |  |
Investment securities, available-for-sale | 7,130 | 7,579
Recurring basis | Level 1 |  |
Assets: |  |
Investment securities, available-for-sale | 27,174 | 27,458
Mortgages held for sale | 0 | 0
Total | 27,174 | 27,458
Liabilities: |  |
Total | 0 | 0
Recurring basis | Level 1 | Interest rate swap contracts |  |
Assets: |  |
Accrued income and other assets | 0 | 0
Liabilities: |  |
Accrued expenses and other liabilities | 0 | 0
Recurring basis | Level 1 | U.S. Treasury and Federal agencies securities |  |
Assets: |  |
Investment securities, available-for-sale | 20,044 | 19,879
Recurring basis | Level 1 | U.S. States and political subdivisions securities |  |
Assets: |  |
Investment securities, available-for-sale | 0 | 0
Recurring basis | Level 1 | Mortgage-backed securities - Federal agencies |  |
Assets: |  |
Investment securities, available-for-sale | 0 | 0
Recurring basis | Level 1 | Corporate debt securities |  |
Assets: |  |
Investment securities, available-for-sale | 0 | 0
Recurring basis | Level 1 | Foreign government and other securities |  |
Assets: |  |
Investment securities, available-for-sale | 0 | 0
Recurring basis | Level 1 | Total debt securities |  |
Assets: |  |
Investment securities, available-for-sale | 20,044 | 19,879
Recurring basis | Level 1 | Marketable equity securities |  |
Assets: |  |
Investment securities, available-for-sale | 7,130 | 7,579
Recurring basis | Level 2 |  |
Assets: |  |
Investment securities, available-for-sale | 781,613 | 758,932
Mortgages held for sale | 15,924 | 9,825
Total | 814,549 | 778,616
Liabilities: |  |
Total | 17,334 | 10,044
Recurring basis | Level 2 | Interest rate swap contracts |  |
Assets: |  |
Accrued income and other assets | 17,012 | 9,859
Liabilities: |  |
Accrued expenses and other liabilities | 17,334 | 10,044
Recurring basis | Level 2 | U.S. Treasury and Federal agencies securities |  |
Assets: |  |
Investment securities, available-for-sale | 380,087 | 369,790
Recurring basis | Level 2 | U.S. States and political subdivisions securities |  |
Assets: |  |
Investment securities, available-for-sale | 124,557 | 118,462
Recurring basis | Level 2 | Mortgage-backed securities - Federal agencies |  |
Assets: |  |
Investment securities, available-for-sale | 244,539 | 236,297
Recurring basis | Level 2 | Corporate debt securities |  |
Assets: |  |
Investment securities, available-for-sale | 32,430 | 34,383
Recurring basis | Level 2 | Foreign government and other securities |  |
Assets: |  |
Investment securities, available-for-sale | 0 | 0
Recurring basis | Level 2 | Total debt securities |  |
Assets: |  |
Investment securities, available-for-sale | 781,613 | 758,932
Recurring basis | Level 2 | Marketable equity securities |  |
Assets: |  |
Investment securities, available-for-sale | 0 | 0
Recurring basis | Level 3 |  |
Assets: |  |
Investment securities, available-for-sale | 5,471 | 5,337
Mortgages held for sale | 0 | 0
Total | 5,471 | 5,337
Liabilities: |  |
Total | 0 | 0
Recurring basis | Level 3 | Interest rate swap contracts |  |
Assets: |  |
Accrued income and other assets | 0 | 0
Liabilities: |  |
Accrued expenses and other liabilities | 0 | 0
Recurring basis | Level 3 | U.S. Treasury and Federal agencies securities |  |
Assets: |  |
Investment securities, available-for-sale | 0 | 0
Recurring basis | Level 3 | U.S. States and political subdivisions securities |  |
Assets: |  |
Investment securities, available-for-sale | 4,661 | 4,528
Recurring basis | Level 3 | Mortgage-backed securities - Federal agencies |  |
Assets: |  |
Investment securities, available-for-sale | 0 | 0
Recurring basis | Level 3 | Corporate debt securities |  |
Assets: |  |
Investment securities, available-for-sale | 0 | 0
Recurring basis | Level 3 | Foreign government and other securities |  |
Assets: |  |
Investment securities, available-for-sale | 810 | 809
Recurring basis | Level 3 | Total debt securities |  |
Assets: |  |
Investment securities, available-for-sale | 5,471 | 5,337
Recurring basis | Level 3 | Marketable equity securities |  |
Assets: |  |
Investment securities, available-for-sale | $ 0 | $ 0

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