Income Taxes - Components of Income Tax Schedule (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
U.S.	$ 45,074	$ 24,253	$ (27,379)
Foreign	571,008	508,228	370,468
Income before provision for income taxes	$ 616,082	$ 532,481	$ 343,089