STOCK PLANS AND SHARE BASED COMPENSATION (Option Activity) (Details) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012 years	Mar. 31, 2011
Option activity under the Plans
Outstanding, shares, at January 1, 2012	3,557
Outstanding, weighted-average exercise price, at January 1, 2012	$ 24.01
Granted, shares	0
Granted, weighted-average exercise price	$ 0.00
Exercised, shares	(215)
Exercised, weighted-average exercise price	$ 19.58
Forfeited or expired, shares	(3)
Forfeited or expired, weighted-average exercise price	$ 21.09
Outstanding, shares, at March 31, 2012	3,339
Outstanding, weighted-average exercise price, at March 31, 2012	$ 24.29
Outstanding, weighted-average remaining contractual term (in years)	4.52
Outstanding, aggregate intrinsic value	$ 43,032,000
Exercisable, shares	2,866
Exercisable, weighted-average exercise price	$ 23.44
Exercisable, weighted-average remaining contractual term (in years)	3.96
Exercisable, aggregate intrinsic value	39,249,000
Vested and expected to vest, shares	3,322
Vested and expected to vest, weighted-average exercise price	$ 24.24
Vested and expected to vest, weighted-average remaining contractual term (in years)	4.50
Vested and expected to vest, aggregate intrinsic value	42,986,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value	$ 3,900,000	$ 6,200,000