Summary of Significant Accounting Policies - Other Expense (Income), Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Foreign currency transaction losses (gains), net	$ 29,830	$ 24,852	$ (15,567)
Debt extinguishment expense	68,300	0	0
Other, net(2)	45,415	9,046	3,875
Other Expense (Income), Net	$ 143,545	$ 33,898	$ (11,692)