Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Loss Per Share (Narrative) (Details)

v3.10.0.1
Loss Per Share (Narrative) (Details) - shares
shares in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Earnings Per Share [Abstract]        
Antidilutive securities excluded from computation of net loss per share 4.1 4.4 4.1 4.4