Income Taxes - Summary of Differences in Taxes from Continuing Operations Computed at Statutory Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Provision at statutory rate	$ 157,774	$ 114,394	$ 71,161
Tax-exempt income:
Tax-exempt interest	(18,582)	(14,588)	(11,066)
Section 291/265 interest disallowance	2,392	363	114
Company-owned life insurance income	(3,125)	(2,891)	(2,138)
Tax-exempt income	(19,315)	(17,116)	(13,090)
State income taxes	31,164	20,837	9,308
Tax credit investments - federal	(12,190)	(9,140)	(5,212)
Officer compensation limitation	4,685	5,903	564
Non-deductible FDIC premiums	7,912	3,805	438
Other, net	(720)	(2,237)	(1,845)
Income tax expense	$ 169,310	$ 116,446	$ 61,324
Effective tax rate	22.50%	21.40%	18.10%