Income Taxes - Difference Between Total Tax Expense and Amount Computed by Applying Statutory Federal Income Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Contingency [Line Items]
Statutory rate applied to income	$ 365,892	$ 330,246	$ 252,073
Plus state income taxes, net of Federal tax benefit	48,573	59,593	34,599
Taxation of foreign operations, net	4,666	3,347	2,299
Valuation allowance	2,911	(7,153)	(2,486)
Other	3,782	3,868	(1,961)
Income tax expense, total	425,824	389,901	301,556
Foreign Tax Authority
Income Tax Contingency [Line Items]
Foreign rate change - deferred tax remeasurement	$ 0	$ 0	$ 17,032