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Fair Value Measurements - Summary of Financial Instruments Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Assets |  |
Securities available-for-sale | $ 1,366,006 | $ 912,429
Obligations of U.S. Government-sponsored enterprises |  |
Assets |  |
Securities available-for-sale | 173,511 | 15,161
Obligations of states and political subdivisions |  |
Assets |  |
Securities available-for-sale | 575,084 | 344,232
Residential mortgage-backed securities |  |
Assets |  |
Securities available-for-sale | 513,859 | 526,572
Corporate Debt Securities [Member] |  |
Assets |  |
Securities available-for-sale | 91,170 | 11,466
US Treasury Bill Securities [Member] |  |
Assets |  |
Securities available-for-sale | 12,382 | 14,998
Recurring basis | Total Fair Value |  |
Assets |  |
Securities available-for-sale | 1,366,006 | 912,429
Other investments | 3,012 |
Derivative financial instruments | 12,869 | 28,703
Total assets | 1,381,887 | 941,132
Liabilities |  |
Derivative financial instruments | 15,794 | 34,967
Total liabilities | 15,794 | 34,967
Recurring basis | Obligations of U.S. Government-sponsored enterprises | Total Fair Value |  |
Assets |  |
Securities available-for-sale | 173,511 | 15,161
Recurring basis | Obligations of states and political subdivisions | Total Fair Value |  |
Assets |  |
Securities available-for-sale | 575,084 | 344,232
Recurring basis | Residential mortgage-backed securities | Total Fair Value |  |
Assets |  |
Securities available-for-sale | 513,859 | 526,572
Recurring basis | Corporate Debt Securities [Member] | Total Fair Value |  |
Assets |  |
Securities available-for-sale | 12,382 | 14,998
Recurring basis | US Treasury Bill Securities [Member] | Total Fair Value |  |
Assets |  |
Securities available-for-sale | 91,170 | 11,466
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Assets |  |
Securities available-for-sale | 0 | 0
Other investments | 0 |
Derivative financial instruments | 0 | 0
Total assets | 0 | 0
Liabilities |  |
Derivative financial instruments | 0 | 0
Total liabilities | 0 | 0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Obligations of U.S. Government-sponsored enterprises |  |
Assets |  |
Securities available-for-sale | 0 | 0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Obligations of states and political subdivisions |  |
Assets |  |
Securities available-for-sale | 0 | 0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Residential mortgage-backed securities |  |
Assets |  |
Securities available-for-sale | 0 | 0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate Debt Securities [Member] |  |
Assets |  |
Securities available-for-sale | 0 | 0
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | US Treasury Bill Securities [Member] |  |
Assets |  |
Securities available-for-sale | 0 | 0
Recurring basis | Significant Other Observable Inputs (Level 2) |  |
Assets |  |
Securities available-for-sale | 1,366,006 | 912,429
Other investments | 3,012 |
Derivative financial instruments | 12,869 | 28,703
Total assets | 1,381,887 | 941,132
Liabilities |  |
Derivative financial instruments | 15,794 | 34,967
Total liabilities | 15,794 | 34,967
Recurring basis | Significant Other Observable Inputs (Level 2) | Obligations of U.S. Government-sponsored enterprises |  |
Assets |  |
Securities available-for-sale | 173,511 | 15,161
Recurring basis | Significant Other Observable Inputs (Level 2) | Obligations of states and political subdivisions |  |
Assets |  |
Securities available-for-sale | 575,084 | 344,232
Recurring basis | Significant Other Observable Inputs (Level 2) | Residential mortgage-backed securities |  |
Assets |  |
Securities available-for-sale | 513,859 | 526,572
Recurring basis | Significant Other Observable Inputs (Level 2) | Corporate Debt Securities [Member] |  |
Assets |  |
Securities available-for-sale | 12,382 | 14,998
Recurring basis | Significant Other Observable Inputs (Level 2) | US Treasury Bill Securities [Member] |  |
Assets |  |
Securities available-for-sale | 91,170 | 11,466
Recurring basis | Significant Unobservable Inputs (Level 3) |  |
Assets |  |
Securities available-for-sale | 0 | 0
Other investments | 0 |
Derivative financial instruments | 0 | 0
Total assets | 0 | 0
Liabilities |  |
Derivative financial instruments | 0 | 0
Total liabilities | 0 | 0
Recurring basis | Significant Unobservable Inputs (Level 3) | Obligations of U.S. Government-sponsored enterprises |  |
Assets |  |
Securities available-for-sale | 0 | 0
Recurring basis | Significant Unobservable Inputs (Level 3) | Obligations of states and political subdivisions |  |
Assets |  |
Securities available-for-sale | 0 | 0
Recurring basis | Significant Unobservable Inputs (Level 3) | Residential mortgage-backed securities |  |
Assets |  |
Securities available-for-sale | 0 | 0
Recurring basis | Significant Unobservable Inputs (Level 3) | Corporate Debt Securities [Member] |  |
Assets |  |
Securities available-for-sale | 0 | 0
Recurring basis | Significant Unobservable Inputs (Level 3) | US Treasury Bill Securities [Member] |  |
Assets |  |
Securities available-for-sale | $ 0 | $ 0

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