v3.20.2

Net Loss per Share (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
Potential dilutive securities that would have been anti-dilutive
Potential dilutive securities that would have been anti-dilutive due to net loss (in shares)			12,648,571	6,061,319
Numerator:
Net loss	$ (52,554)	$ (141,112)	$ (178,827)	$ (190,638)
Denominator:
Weighted-average shares of common stock outstanding, basic and diluted (in shares)	68,580,439	63,358,890	66,368,686	60,690,536
Net loss per share, basic and diluted (in dollars per share)	$ (0.77)	$ (2.23)	$ (2.69)	$ (3.14)
Stock options
Potential dilutive securities that would have been anti-dilutive
Potential dilutive securities that would have been anti-dilutive due to net loss (in shares)			4,023,741	4,404,386
Restricted stock units
Potential dilutive securities that would have been anti-dilutive
Potential dilutive securities that would have been anti-dilutive due to net loss (in shares)			3,431,829	1,454,169
Performance restricted stock units
Potential dilutive securities that would have been anti-dilutive
Potential dilutive securities that would have been anti-dilutive due to net loss (in shares)			1,760,164	202,764
Convertible debt securities
Potential dilutive securities that would have been anti-dilutive
Potential dilutive securities that would have been anti-dilutive due to net loss (in shares)			3,432,837	0

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