Other Financial Information - Narrative (Details)	3 Months Ended	9 Months Ended
	Sep. 30, 2019 USD ($)	Sep. 30, 2019 USD ($)
Other Financial Information [Abstract]
Contract manufacturer deposit (non-interest bearing)	$ 36,900,000	$ 36,900,000
Non-interest bearing deposit to contract manufacturer, unamortized discount	1,900,000	$ 1,900,000
Non-interest bearing deposit to contract manufacturer, imputed interest rate		5.00%
Disaggregation of Revenue [Line Items]
Deferred commission	20,400,000	$ 20,400,000
Amortization of deferred commission	27,900,000	94,000,000.0
Impairment loss	0	0
Product
Disaggregation of Revenue [Line Items]
Contract with customer, liability, revenue recognized	13,700,000	54,300,000
Service
Disaggregation of Revenue [Line Items]
Contract with customer, liability, revenue recognized	$ 152,300,000	$ 609,100,000