Accounting for Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Disclosure Accounting For Income Taxes Additional Information [Abstract]
One-time tax benefit from intra-entity transfer of certain assets			$ 1,493,500
Provision for (benefit from) income taxes	$ 45,174	$ 25,895	$ (1,452,493)	$ 77,812
Effective income tax rate, continuing operations	24.50%	20.20%	(883.50%)	19.10%
Unrecognized tax benefits	$ 47,000		$ 47,000		$ 46,700
Unrecognized tax benefits, decrease for settlement with IRS	8,700
Deferred tax liabilities	$ 36,800		$ 36,800
Undistributed earnings of foreign subsidiaries					$ 452,600