Income Taxes - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax [Line Items]
Pretax income of non-United States operations	$ 86.3	$ 416.6	$ 551.0
Unremitted earnings of non-United States subsidiaries that are considered to be permanently invested	439.0
Unremitted earnings of non-United States subsidiaries that may be remitted	2,077.6
Deferred tax liability, undistributed foreign earnings	10.0	8.8
Deferred tax asset on net operating losses	136.2	89.5
Valuation allowance, net operating losses	115.2
Gross unrecognized tax benefits	64.5	69.5	34.2
Interest and penalties related to unrecognized tax benefits	$ 0.0	$ 1.6	$ (18.4)
Earliest Tax Year
Income Tax [Line Items]
Income tax examination year under examination	2013
Latest Tax Year
Income Tax [Line Items]
Income tax examination year under examination	2020
United States
Income Tax [Line Items]
U.S. Federal statutory rate (as percent)	21.00%	21.00%	21.00%
United States Federal and Non-United States
Income Tax [Line Items]
Net operating loss carryforwards	$ 658.6
United States State
Income Tax [Line Items]
Net operating loss carryforwards	$ 167.2