STOCK PLANS AND SHARE BASED COMPENSATION (Options by Exercise Price Range) (Details) (USD $)	12 Months Ended
	Dec. 31, 2011 Y
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Exercise Price Range, Lower Range Limit	$ 12.19
Options Outstanding, Exercise Price Range, Upper Range Limit	$ 39.49
Options Outstanding, Number Outstanding	3,557,183
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	4.65
Options Outstanding, Weighted Average Exercise Price (per share)	$ 24.01
Options Vested and Exercisable, Number Vested	2,997,319
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 23.13
$12.19 - $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	$ 12.19
Options Outstanding, Exercise Price Range, Upper Range Limit	$ 17.12
Options Outstanding, Number Outstanding	52,011
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	0.81
Options Outstanding, Weighted Average Exercise Price (per share)	$ 14.64
Options Vested and Exercisable, Number Vested	51,094
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 14.59
$17.18 - $17.18 [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	$ 17.18
Options Outstanding, Number Outstanding	434,149
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	3.07
Options Outstanding, Weighted Average Exercise Price (per share)	$ 17.18
Options Vested and Exercisable, Number Vested	434,149
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 17.18
$17.32 - $18.95 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Exercise Price Range, Lower Range Limit	$ 17.32
Options Outstanding, Exercise Price Range, Upper Range Limit	$ 18.95
Options Outstanding, Number Outstanding	376,034
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	2.12
Options Outstanding, Weighted Average Exercise Price (per share)	$ 18.43
Options Vested and Exercisable, Number Vested	372,874
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 18.44
$19.02 - $21.11 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Exercise Price Range, Lower Range Limit	$ 19.02
Options Outstanding, Exercise Price Range, Upper Range Limit	$ 21.11
Options Outstanding, Number Outstanding	321,780
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	4.83
Options Outstanding, Weighted Average Exercise Price (per share)	$ 20.43
Options Vested and Exercisable, Number Vested	264,699
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 20.33
$21.14 - $21.14 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Exercise Price Range, Lower Range Limit	$ 21.14
Options Outstanding, Exercise Price Range, Upper Range Limit	$ 21.14
Options Outstanding, Number Outstanding	521,102
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	7.27
Options Outstanding, Weighted Average Exercise Price (per share)	$ 21.14
Options Vested and Exercisable, Number Vested	325,258
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 21.14
$21.57 - $24.90 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Exercise Price Range, Lower Range Limit	$ 21.57
Options Outstanding, Exercise Price Range, Upper Range Limit	$ 24.90
Options Outstanding, Number Outstanding	186,884
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	4.15
Options Outstanding, Weighted Average Exercise Price (per share)	$ 23.54
Options Vested and Exercisable, Number Vested	167,630
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 23.48
$25.25 - $25.25 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Exercise Price Range, Lower Range Limit	$ 25.25
Options Outstanding, Exercise Price Range, Upper Range Limit	$ 25.25
Options Outstanding, Number Outstanding	359,587
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	5.62
Options Outstanding, Weighted Average Exercise Price (per share)	$ 25.25
Options Vested and Exercisable, Number Vested	359,587
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 25.25
$25.45 - $26.75 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Exercise Price Range, Lower Range Limit	$ 25.45
Options Outstanding, Exercise Price Range, Upper Range Limit	$ 26.75
Options Outstanding, Number Outstanding	407,063
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	4.18
Options Outstanding, Weighted Average Exercise Price (per share)	$ 26.62
Options Vested and Exercisable, Number Vested	407,063
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 26.62
$26.86 - $28.88 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Exercise Price Range, Lower Range Limit	$ 26.86
Options Outstanding, Exercise Price Range, Upper Range Limit	$ 28.88
Options Outstanding, Number Outstanding	413,507
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	2.22
Options Outstanding, Weighted Average Exercise Price (per share)	$ 27.35
Options Vested and Exercisable, Number Vested	412,850
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 27.35
$28.89 - $39.49 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Exercise Price Range, Lower Range Limit	$ 28.89
Options Outstanding, Exercise Price Range, Upper Range Limit	$ 39.49
Options Outstanding, Number Outstanding	485,066
Options Outstanding, Weighted Average Remaining Contractual Term (in years)	7.46
Options Outstanding, Weighted Average Exercise Price (per share)	$ 35.11
Options Vested and Exercisable, Number Vested	202,115
Options Vested and Exercisable, Weighted Average Exercise Price (per share)	$ 33.90