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Industry and Geographic Information - Additional Information (Details) $ in Millions	9 Months Ended
	Sep. 30, 2020 USD ($) segment	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Revenue, Major Customer [Line Items]
Number of reportable segments \| segment	1
Customer Concentration Risk \| Non-US
Revenue, Major Customer [Line Items]
Sales to customers outside the U.S.	$ 140.5	$ 129.0
Customer Concentration Risk \| Sales
Revenue, Major Customer [Line Items]
Percentage of risk concentration by major customer	63.00%	51.00%
Customer Concentration Risk \| Sales \| Non-US
Revenue, Major Customer [Line Items]
Percentage of risk concentration by major customer	16.00%	34.00%
Geographic Concentration Risk \| Non-US
Revenue, Major Customer [Line Items]
Accounts receivable	$ 18.9		$ 22.9
Credit Concentration Risk
Revenue, Major Customer [Line Items]
Accounts receivable	$ 226.9		$ 53.5