Income Taxes - Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current:
Federal	$ 121,214	$ 50,306	$ 44,695
State	35,329	26,170	301
Foreign	16,848	23,209	22,666
Total current tax provision	173,391	99,685	67,662
Deferred:
Federal	7,379	62,482	(36,915)
State	(1,776)	(4,152)	14,951
Foreign	(13,522)	3,644	(10,166)
Total deferred tax provision (benefit)	(7,919)	61,974	(32,130)
Total provision for income taxes	$ 165,472	$ 161,659	$ 35,532