Net Income (Loss) Per Common Share (Tables)

9 Months Ended

Sep. 30, 2013

Earnings Per Share [Abstract]

Schedule of Potentially Dilutive Securities

Outstanding securities, and the number of potentially dilutive common shares underlying such securities, were as follows:

	September 30,
	2013		2012
Stock options		6,741		6,898
Convertible Notes		5,050		5,050
Restricted stock units		436		247
Stock appreciation rights		499		509
Performance shares		—		42
Warrants		46		46
Total		12,772		12,792