Quarterly report pursuant to Section 13 or 15(d)

Loss Per Share - Anti-dilutive Securities (Details)

v3.19.1
Loss Per Share - Anti-dilutive Securities (Details) - shares
shares in Millions
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Weighted-average securities not included in computation of diluted shares outstanding (in shares) 8.8 16.1
Shares issuable for the contingent consideration    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Weighted-average securities not included in computation of diluted shares outstanding (in shares) 5.3 8.7
Shares issuable upon conversion of Series A Preferred Stock    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Weighted-average securities not included in computation of diluted shares outstanding (in shares) 2.0 2.0
Shares issuable upon vesting of RSUs    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Weighted-average securities not included in computation of diluted shares outstanding (in shares) 1.4 1.1
Shares issuable upon vesting and exercise of stock options    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Weighted-average securities not included in computation of diluted shares outstanding (in shares) 0.1 0.0
Shares issuable upon conversion of PDH Common Stock    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Weighted-average securities not included in computation of diluted shares outstanding (in shares) 0.0 4.3