Net Loss Per Common Share (Tables)

12 Months Ended

Dec. 31, 2016

Earnings Per Share [Abstract]

Schedule of anti-dilutive shares

The following table presents anti-dilutive shares for the years ended December 31, 2016, 2015 and 2014 (in thousands):

	2016	2015	2014
Weighted-average anti-dilutive shares related to:
Outstanding stock options	6,569	4,148	5,941
Restricted stock awards	1,202	519	847