XML 49 R34.htm IDEA: XBRL DOCUMENT v3.8.0.1
Income (Loss) Per Common Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Income (Loss) Per Common Share Share    
Net income (loss) $ (15,827) $ 1,640
Net income (loss) per common share:    
Basic (in dollars per share) $ (0.34) $ 0.04
Diluted (in dollars per share) $ (0.34) $ 0.04
Weighted average shares reconciliation    
Basic weighted average shares outstanding 46,963 39,619
Effect of potentially dilutive share-based awards   521
Diluted weighted average shares outstanding 46,963 40,140