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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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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