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Income Taxes - Schedule of Total Gross Unrecognized Tax Benefits (Details) - USD ($)
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Beginning Balance $ 17,200,000 $ 12,300,000 $ 4,700,000
Increases related to positions taken on items from prior years 3,400,000 1,900,000 0
Decreases related to positions taken on items from prior years (1,800,000) 0 (200,000)
Increases related to positions taken in the current year 18,200,000 3,000,000.0 7,800,000
Ending Balance 37,000,000.0 17,200,000 12,300,000
Total accrual for interest and penalties associated with unrecognized tax benefits 3,100,000 1,200,000 1,100,000
Total gross unrecognized tax benefits at December 31, including interest and penalties 40,100,000 18,400,000 13,400,000
Total unrecognized tax benefits that, if recognized, would impact the effective tax rate 25,200,000 9,700,000 8,500,000
Interest and penalties included as components of the Provision (benefit) for income taxes 1,900,000 $ 100,000 $ 300,000
Increase resulting from closure of manufacturing facility $ 10,600,000