Net Income (Loss) Per Common Share (Tables)

12 Months Ended

Dec. 31, 2012

Schedule Of Potentially Dilutive Securities

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

	December 31,
	2012		2011		2010
Stock options		7,038		8,604		10,083
Convertible Notes		5,050		—		—
Stock appreciation rights		884		525		—
Restricted stock units		374		203		346
Performance shares		—		125		—
Warrants		46		46		46
Total		13,392		9,503		10,475