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Fair Value Measurements (Details 2) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Fair value measurements |  |
Investment securities available-for-sale | $ 1,863,041 | $ 1,197,467
Assets: |  |
Mortgages held for sale | 13,284 | 12,885
U.S. Treasury and Federal agencies securities |  |
Fair value measurements |  |
Investment securities available-for-sale | 1,084,006 | 619,482
U.S. States and political subdivisions securities |  |
Fair value measurements |  |
Investment securities available-for-sale | 95,701 | 81,127
Mortgage-backed securities - Federal agencies |  |
Fair value measurements |  |
Investment securities available-for-sale | 659,727 | 453,789
Corporate debt securities |  |
Fair value measurements |  |
Investment securities available-for-sale | 23,009 | 42,369
Foreign government and other securities |  |
Fair value measurements |  |
Investment securities available-for-sale | 598 | 700
Total |  |
Fair value measurements |  |
Investment securities available-for-sale | 1,863,041 | 1,197,467
Assets: |  |
Mortgages held for sale | 13,284 | 12,885
Level 1 |  |
Fair value measurements |  |
Investment securities available-for-sale | 561,950 | 80,285
Assets: |  |
Mortgages held for sale | 0 | 0
Level 2 |  |
Fair value measurements |  |
Investment securities available-for-sale | 1,299,242 | 1,115,030
Assets: |  |
Mortgages held for sale | 13,284 | 12,885
Level 3 |  |
Fair value measurements |  |
Investment securities available-for-sale | 1,849 | 2,152
Assets: |  |
Mortgages held for sale | 0 | 0
Recurring | Total |  |
Fair value measurements |  |
Investment securities available-for-sale | 1,863,041 | 1,197,467
Assets: |  |
Mortgages held for sale | 13,284 | 12,885
Total | 1,897,060 | 1,257,006
Liabilities: |  |
Total | 21,172 | 47,681
Recurring | Total | Interest rate swap contracts |  |
Assets: |  |
Accrued income and other assets | 20,735 | 46,654
Liabilities: |  |
Accrued expenses and other liabilities | 21,172 | 47,681
Recurring | Total | U.S. Treasury and Federal agencies securities |  |
Fair value measurements |  |
Investment securities available-for-sale | 1,084,006 | 619,482
Recurring | Total | U.S. States and political subdivisions securities |  |
Fair value measurements |  |
Investment securities available-for-sale | 95,701 | 81,127
Recurring | Total | Mortgage-backed securities - Federal agencies |  |
Fair value measurements |  |
Investment securities available-for-sale | 659,727 | 453,789
Recurring | Total | Corporate debt securities |  |
Fair value measurements |  |
Investment securities available-for-sale | 23,009 | 42,369
Recurring | Total | Foreign government and other securities |  |
Fair value measurements |  |
Investment securities available-for-sale | 598 | 700
Recurring | Level 1 |  |
Fair value measurements |  |
Investment securities available-for-sale | 561,950 | 80,285
Assets: |  |
Mortgages held for sale | 0 | 0
Total | 561,950 | 80,285
Liabilities: |  |
Total | 0 | 0
Recurring | Level 1 | Interest rate swap contracts |  |
Assets: |  |
Accrued income and other assets | 0 | 0
Liabilities: |  |
Accrued expenses and other liabilities | 0 | 0
Recurring | Level 1 | U.S. Treasury and Federal agencies securities |  |
Fair value measurements |  |
Investment securities available-for-sale | 561,950 | 80,285
Recurring | Level 1 | U.S. States and political subdivisions securities |  |
Fair value measurements |  |
Investment securities available-for-sale | 0 | 0
Recurring | Level 1 | Mortgage-backed securities - Federal agencies |  |
Fair value measurements |  |
Investment securities available-for-sale | 0 | 0
Recurring | Level 1 | Corporate debt securities |  |
Fair value measurements |  |
Investment securities available-for-sale | 0 | 0
Recurring | Level 1 | Foreign government and other securities |  |
Fair value measurements |  |
Investment securities available-for-sale | 0 | 0
Recurring | Level 2 |  |
Fair value measurements |  |
Investment securities available-for-sale | 1,299,242 | 1,115,030
Assets: |  |
Mortgages held for sale | 13,284 | 12,885
Total | 1,333,261 | 1,174,569
Liabilities: |  |
Total | 21,172 | 47,681
Recurring | Level 2 | Interest rate swap contracts |  |
Assets: |  |
Accrued income and other assets | 20,735 | 46,654
Liabilities: |  |
Accrued expenses and other liabilities | 21,172 | 47,681
Recurring | Level 2 | U.S. Treasury and Federal agencies securities |  |
Fair value measurements |  |
Investment securities available-for-sale | 522,056 | 539,197
Recurring | Level 2 | U.S. States and political subdivisions securities |  |
Fair value measurements |  |
Investment securities available-for-sale | 93,852 | 78,975
Recurring | Level 2 | Mortgage-backed securities - Federal agencies |  |
Fair value measurements |  |
Investment securities available-for-sale | 659,727 | 453,789
Recurring | Level 2 | Corporate debt securities |  |
Fair value measurements |  |
Investment securities available-for-sale | 23,009 | 42,369
Recurring | Level 2 | Foreign government and other securities |  |
Fair value measurements |  |
Investment securities available-for-sale | 598 | 700
Recurring | Level 3 |  |
Fair value measurements |  |
Investment securities available-for-sale | 1,849 | 2,152
Assets: |  |
Mortgages held for sale | 0 | 0
Total | 1,849 | 2,152
Liabilities: |  |
Total | 0 | 0
Recurring | Level 3 | Interest rate swap contracts |  |
Assets: |  |
Accrued income and other assets | 0 | 0
Liabilities: |  |
Accrued expenses and other liabilities | 0 | 0
Recurring | Level 3 | U.S. Treasury and Federal agencies securities |  |
Fair value measurements |  |
Investment securities available-for-sale | 0 | 0
Recurring | Level 3 | U.S. States and political subdivisions securities |  |
Fair value measurements |  |
Investment securities available-for-sale | 1,849 | 2,152
Recurring | Level 3 | Mortgage-backed securities - Federal agencies |  |
Fair value measurements |  |
Investment securities available-for-sale | 0 | 0
Recurring | Level 3 | Corporate debt securities |  |
Fair value measurements |  |
Investment securities available-for-sale | 0 | 0
Recurring | Level 3 | Foreign government and other securities |  |
Fair value measurements |  |
Investment securities available-for-sale | $ 0 | $ 0

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