Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share - (Narrative) (Details)

v3.8.0.1
Earnings Per Share - (Narrative) (Details) - shares
shares in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Earnings Per Share [Abstract]    
Antidilutive securities excluded from computation of earnings per share, number of shares 2,119 2,313