Income Taxes - Reconciliation Of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income taxes at statutory rate	$ 122,719	$ 157,404	$ 220,332
State and local income taxes, net of federal income tax benefit	8,081	22,185	22,315
Foreign income taxes	(57,898)	(17,276)	(39,915)
Change in valuation allowance	35,381	(21,975)	2,472
European Restructuring	0	(136,194)	0
Loss on previously taxed earnings	(10,346)	0	0
Carryback rate differential	(33,739)	0	0
Transition Tax	0	0	28,201
Transition tax planning initiatives	0	0	(18,706)
Tax contingencies and audit settlements	6,779	6,686	(31,874)
Other, net	(2,330)	(5,856)	1,521
Income tax expense (benefit)	$ 68,647	$ 4,974	$ 184,346