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Business Segment and Geographic Information - Summary (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 500.9	$ 396.3	$ 1,357.8	$ 1,013.2
Proportion of revenue (as a percent)	100.00%	100.00%	100.00%	100.00%
Distributor
Disaggregation of Revenue [Line Items]
Revenues	$ 382.4	$ 270.4	$ 1,000.2	$ 680.0
Proportion of revenue (as a percent)	76.00%	68.00%	74.00%	67.00%
Direct
Disaggregation of Revenue [Line Items]
Revenues	$ 118.5	$ 125.9	$ 357.6	$ 333.2
Proportion of revenue (as a percent)	24.00%	32.00%	26.00%	33.00%
United States
Disaggregation of Revenue [Line Items]
Revenues	$ 398.6	$ 308.8	$ 1,058.0	$ 785.6
Proportion of revenue (as a percent)	80.00%	78.00%	78.00%	78.00%
Outside of the United States
Disaggregation of Revenue [Line Items]
Revenues	$ 102.3	$ 87.5	$ 299.8	$ 227.6
Proportion of revenue (as a percent)	20.00%	22.00%	22.00%	22.00%

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