NET INCOME PER SHARE (Tables)

6 Months Ended

Jun. 30, 2011

NET INCOME PER SHARE

Reconciliation of the weighted average number of shares outstanding used in calculating diluted earnings per share

	For the Three MonthsEnded June 30,		For the Six MonthsEnded June 30,
	2011	2010	2011	2010
Weighted average number of basic common shares outstanding	49,718	47,791	49,519	47,054
Weighted average dilutive stock options, restricted stock, restricted stock units and performance share units	614	1,394	911	1,554
Assumed conversion of convertible debt	773	1,662	704	2,424
Weighted average number of diluted common and common equivalent shares outstanding	51,105	50,847	51,134	51,032
Anti-dilutive potential common shares	1,649	2,921	1,461	2,815