Income Taxes - Components of Income Tax Expense Included in Continuing Operations (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current:
Federal	$ 475,737	$ 66,017	$ 3,678
State	84,967	11,998	6,274
Total current income tax expense (benefit)	560,704	78,015	9,952
Deferred:
Federal	(33,803)	16,270	45,955
State	(770)	344	5,039
Total deferred income tax expense (benefit)	(34,573)	16,614	50,994
Income tax expense	$ 526,131	$ 94,629	$ 60,946

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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