Quarterly report pursuant to Section 13 or 15(d)

Net Loss per Share - Narrative (Details)

v3.19.1
Net Loss per Share - Narrative (Details) - shares
shares in Millions
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Earnings Per Share [Abstract]    
Weighted average shares excluded from the calculation of diluted weighted average shares outstanding (shares) 21.6 14.7