Income Taxes - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020 USD ($) Jurisdiction	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Income Tax Contingency [Line Items]
Unrecognized tax benefits	$ 27.8	$ 12.5	$ 11.5	$ 12.6
Gross increases for tax positions of current year	16.8	0.0	$ 0.0
Changes due to currency fluctuations	2.0	0.4
Unrecognized tax benefits, that would effect effective tax rate if recognized	27.8
Unrecognized tax benefits offset by reduction of corresponding deferred tax asset	0.1
Interest and penalties accrued	$ 2.3	$ 1.3
Number of jurisdictions outside U.S. | Jurisdiction	46
Income tax reconciliation withholding tax	$ 32.5
Minimum
Income Tax Contingency [Line Items]
Decrease in unrecognized tax benefits is reasonably possible	11.0
Maximum
Income Tax Contingency [Line Items]
Decrease in unrecognized tax benefits is reasonably possible	$ 15.0