STOCK PLANS AND SHARE BASED COMPENSATION (Options by Exercise Price Range) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Exercise Price Range, Lower Range Limit	$ 13.80
Options Outstanding, Exercise Price Range, Upper Range Limit	$ 42.88
Options Outstanding, Number Outstanding	2,817,225
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	4 years 4 months 17 days
Options Outstanding, Weighted Average Exercise Price (per share)	$ 26.00
Options Vested and Exercisable, Number Vested	2,456,583
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 24.48
$13.80 - $17.12 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Exercise Price Range, Lower Range Limit	$ 13.80
Options Outstanding, Exercise Price Range, Upper Range Limit	$ 17.12
Options Outstanding, Number Outstanding	3,500
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	3 years 10 months 28 days
Options Outstanding, Weighted Average Exercise Price (per share)	$ 14.27
Options Vested and Exercisable, Number Vested	3,500
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 14.27
$17.18 - $19.73 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Exercise Price Range, Lower Range Limit	$ 17.18
Options Outstanding, Exercise Price Range, Upper Range Limit	$ 19.73
Options Outstanding, Number Outstanding	479,089
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	2 years 4 months 28 days
Options Outstanding, Weighted Average Exercise Price (per share)	$ 17.66
Options Vested and Exercisable, Number Vested	478,919
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 17.66
$19.73 - $22.05 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Exercise Price Range, Lower Range Limit	$ 19.73
Options Outstanding, Exercise Price Range, Upper Range Limit	$ 22.05
Options Outstanding, Number Outstanding	561,922
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	5 years 11 months 23 days
Options Outstanding, Weighted Average Exercise Price (per share)	$ 21.08
Options Vested and Exercisable, Number Vested	512,729
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 21.08
$22.05 - $25.88 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Exercise Price Range, Lower Range Limit	$ 22.05
Options Outstanding, Exercise Price Range, Upper Range Limit	$ 25.88
Options Outstanding, Number Outstanding	462,232
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	4 years 4 months 2 days
Options Outstanding, Weighted Average Exercise Price (per share)	$ 24.84
Options Vested and Exercisable, Number Vested	461,642
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 24.85
$25.88 - $27.22 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Exercise Price Range, Lower Range Limit	$ 25.88
Options Outstanding, Exercise Price Range, Upper Range Limit	$ 27.22
Options Outstanding, Number Outstanding	674,628
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	2 years 1 month 24 days
Options Outstanding, Weighted Average Exercise Price (per share)	$ 26.99
Options Vested and Exercisable, Number Vested	674,628
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 26.99
$27.22 - $29.50 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Exercise Price Range, Lower Range Limit	$ 27.22
Options Outstanding, Exercise Price Range, Upper Range Limit	$ 29.50
Options Outstanding, Number Outstanding	31,600
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	1 year 1 month 13 days
Options Outstanding, Weighted Average Exercise Price (per share)	$ 28.60
Options Vested and Exercisable, Number Vested	31,600
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 28.60
$29.50 - $31.15 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Exercise Price Range, Lower Range Limit	$ 29.50
Options Outstanding, Exercise Price Range, Upper Range Limit	$ 31.15
Options Outstanding, Number Outstanding	35,611
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	6 years 26 days
Options Outstanding, Weighted Average Exercise Price (per share)	$ 30.90
Options Vested and Exercisable, Number Vested	26,953
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 30.94
$31.15 - $32.24 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Exercise Price Range, Lower Range Limit	$ 31.15
Options Outstanding, Exercise Price Range, Upper Range Limit	$ 32.24
Options Outstanding, Number Outstanding	35,794
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	5 years 3 months 11 days
Options Outstanding, Weighted Average Exercise Price (per share)	$ 31.76
Options Vested and Exercisable, Number Vested	34,626
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 31.74
$32.24 - $36.95 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Exercise Price Range, Lower Range Limit	$ 32.24
Options Outstanding, Exercise Price Range, Upper Range Limit	$ 36.95
Options Outstanding, Number Outstanding	253,679
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	6 years 1 month 13 days
Options Outstanding, Weighted Average Exercise Price (per share)	$ 34.44
Options Vested and Exercisable, Number Vested	151,176
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 34.09
$36.95 - $42.88 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Exercise Price Range, Lower Range Limit	$ 36.95
Options Outstanding, Exercise Price Range, Upper Range Limit	$ 42.88
Options Outstanding, Number Outstanding	279,170
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	8 years 6 months 7 days
Options Outstanding, Weighted Average Exercise Price (per share)	$ 40.53
Options Vested and Exercisable, Number Vested	80,810
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 39.19