Income Taxes Income Taxes - Income Tax Provision for Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Federal	$ 43,185	$ (2,917)	$ 23,254
State	8,528	(6,464)	2,983
Foreign	10,112	21,008	29,532
Total current income tax expense	61,825	11,627	55,769
Federal	15,851	27,640	(10,447)
State	2,192	5,535	(2,169)
Foreign	(9,494)	(12,469)	3,599
Total deferred income tax expense	8,549	20,706	(9,017)
Provision for income taxes	$ 70,374	$ 32,333	$ 46,752