Fair Value Measurements - Summary of Financial Instruments Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Assets
Securities available-for-sale	$ 1,535,807	$ 1,366,006
Obligations of U.S. Government-sponsored enterprises
Assets
Securities available-for-sale	237,785	173,511
Obligations of states and political subdivisions
Assets
Securities available-for-sale	417,444	575,084
Residential mortgage-backed securities
Assets
Securities available-for-sale	659,404	513,859
Corporate Debt Securities [Member]
Assets
Securities available-for-sale	208,534	91,170
US Treasury Bill Securities [Member]
Assets
Securities available-for-sale	12,640	12,382
Recurring basis | Total Fair Value
Assets
Securities available-for-sale	1,535,807	1,366,006
Other investments	2,667	3,012
Derivative financial instruments	22,958	12,869
Total assets	1,561,432	1,381,887
Liabilities
Derivative financial instruments	21,581	15,794
Total liabilities	21,581	15,794
Recurring basis |     Obligations of U.S. Government-sponsored enterprises | Total Fair Value
Assets
Securities available-for-sale	237,785	173,511
Recurring basis | Obligations of states and political subdivisions | Total Fair Value
Assets
Securities available-for-sale	417,444	575,084
Recurring basis | Residential mortgage-backed securities | Total Fair Value
Assets
Securities available-for-sale	659,404	513,859
Recurring basis | Corporate Debt Securities [Member] | Total Fair Value
Assets
Securities available-for-sale	12,640	12,382
Recurring basis | US Treasury Bill Securities [Member] | Total Fair Value
Assets
Securities available-for-sale	208,534	91,170
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets
Securities available-for-sale	0	0
Other investments	0	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	1,535,807	1,366,006
Other investments	2,667	3,012
Derivative financial instruments	22,958	12,869
Total assets	1,561,432	1,381,887
Liabilities
Derivative financial instruments	21,581	15,794
Total liabilities	21,581	15,794
Recurring basis | Significant Other Observable Inputs (Level 2) |     Obligations of U.S. Government-sponsored enterprises
Assets
Securities available-for-sale	237,785	173,511
Recurring basis | Significant Other Observable Inputs (Level 2) | Obligations of states and political subdivisions
Assets
Securities available-for-sale	417,444	575,084
Recurring basis | Significant Other Observable Inputs (Level 2) | Residential mortgage-backed securities
Assets
Securities available-for-sale	659,404	513,859
Recurring basis | Significant Other Observable Inputs (Level 2) | Corporate Debt Securities [Member]
Assets
Securities available-for-sale	12,640	12,382
Recurring basis | Significant Other Observable Inputs (Level 2) | US Treasury Bill Securities [Member]
Assets
Securities available-for-sale	208,534	91,170
Recurring basis | Significant Unobservable Inputs (Level 3)
Assets
Securities available-for-sale	0	0
Other investments	0	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