Income Taxes - Summary of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current expense:
Federal	$ 92,823	$ 96,057	$ 95,317
State	47,249	48,463	36,457
Total current expense	140,072	144,520	131,774
Deferred expense (benefit):
Federal	19,709	(3,109)	10,444
State	7,118	(1,951)	4,784
Total deferred expense	26,827	(5,060)	15,228
Income tax expense	$ 166,899	$ 139,460	$ 147,002