Income Taxes - Components Of Income Before Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Domestic	$ (81,522)	$ 465,798	$ 593,099
Foreign	65,792	91,617	93,530
(Loss) income before income taxes	$ (15,730)	$ 557,415	$ 686,629