Revision of Prior Period Financial Statements - Condensed Consolidated Statements of Operations (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues	$ 93,106	$ 83,808	$ 210,637	$ 237,062
Net loss	9,702	$ (23,940)	(31,466)	$ (267,509)
Basic and diluted net income (loss) per share (in dollars per share)		$ (0.71)		$ (7.85)
As reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues		$ 84,131		$ 238,043
Net loss		$ (23,617)		$ (266,528)
Basic and diluted net income (loss) per share (in dollars per share)		$ (0.70)		$ (7.83)
Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues		$ (323)		$ (981)
Net loss		$ (323)		$ (981)
Basic and diluted net income (loss) per share (in dollars per share)		$ (0.01)		$ (0.02)
Product Revenue
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues	$ 73,229	$ 83,784	$ 190,702	$ 236,831
Product Revenue | As reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues		84,107		237,812
Product Revenue | Adjustment
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Revenues		$ (323)		$ (981)