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Income Taxes - Effective Income Tax Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income tax expense at statutory federal income tax rate	$ 202,477	$ 207,765	$ 101,779
State income tax expense, net of federal income tax benefit	21,981	38,452	11,168
Income not subject to tax	(9,346)	(10,455)	(9,207)
Low income housing tax credits and other tax benefits, net of amortization	(6,336)	(4,858)	(2,611)
FDIC premiums	5,517	4,111	4,744
General business tax credits	(3,293)	(3,727)	(657)
Excess tax benefit from share-based compensation	(3,153)	(3,084)	311
Executive compensation	2,152	1,096	1,501
Goodwill impairment	0	0	9,424
Other, net	(3,724)	(407)	(5,482)
Total income tax expense	$ 206,275	$ 228,893	$ 110,970
Effective tax rate	21.40%	23.10%	22.90%

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