Income Taxes - Components of the Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current:
Federal	$ 253,084	$ 216,469	$ 152,836
State	70,799	53,224	42,438
Total current income tax expense (benefit)	323,883	269,693	195,274
Deferred:
Federal	26,382	(35,372)	12,013
State	3,783	(5,639)	1,144
Total deferred income tax expense (benefit)	30,165	(41,011)	13,157
Total provision for income taxes	$ 354,048	$ 228,682	$ 208,431