Income Taxes - Components of Provision for Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current provision (benefit):
Federal									$ 175,977	$ 205,954	$ 259,536
State									44,152	49,427	64,843
Total current provision (benefit)									220,129	255,381	324,379
Deferred provision (benefit):
Federal									(20,687)	(75,978)	47,240
State									(2,537)	(17,692)	8,132
Total deferred provision (benefit)									(23,224)	(93,670)	55,372
Provision for income tax expense	$ 56,843	$ 11,242	$ 91,482	$ 37,338	$ (19,492)	$ 29,551	$ 114,296	$ 37,356	$ 196,905	$ 161,711	$ 379,751