NET INCOME PER SHARE (TABLES)

9 Months Ended

Sep. 30, 2012

NET INCOME PER SHARE [Abstract]

Schedule of Diluted Shares Calculation

				Three Months Ended September 30,		Nine Months Ended September 30,
				2012	2011	2012	2011
Shares used in basic earnings per share calculation				54,093	56,476	55,233	56,790
	Effect of dilutive securities:
		Stock options		377	673	378	817
		Restricted stock units		435	599	380	566
		Performance-based restricted stock units		-	-	-	-
			Total effects of dilutive securities	812	1,272	758	1,383
Shares used in dilutive earnings per share calculation				54,905	57,748	55,991	58,173