STOCK PLANS AND SHARE-BASED COMPENSATION (Performance-based Awards and Restricted Stock Units) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Performance Based Awards (PSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value of awards released			$ 3,200,000	$ 2,000,000
Number of performance-based awards shares released as percentage of target number, minimum			0.00%
Number of performance-based awards shares released as percentage of target number, maximum			200.00%
Reduction in number of shares available for issuance under the 2007 Plan per award granted			2.0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Outstanding, shares, at January 1, 2014			100,000
Granted, shares			83,000
Vested, shares			(83,000)
Change in units due to performance achievement for PSUs vested in the year, shares			(17,000)
Forfeited or expired, shares			0
Outstanding, shares, at June 30, 2014	83,000		83,000
Outstanding and expected to vest at June 30, 2014	48,000		48,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Outstanding, weighted-average grant date fair value per share, at January 1, 2014			$ 38.48
Granted, weighted-average grant date fair value per share	$ 48.89	$ 41.78	$ 53.93	$ 38.62
Vested, weighted-average grant date fair value per share			$ 38.48
Change in units due to performance achievement for PSUs vested in the year per share			$ 38.48
Forfeited or expired, weighted-average grant date fair value per share			$ 0.00
Outstanding, weighted-average grant date fair value per share, at June 30, 2014	$ 53.93		$ 53.93
Weighted Average Remaining Contractual Term [Abstract]
Outstanding and expected to vest, weighted-average remaining contractual term, at June 30, 2014 (in years)			6 months
Outstanding and expected to vest, weighted-average remaining contractual term, at June 30, 2014 (in years)			6 months
Aggregate Intrinsic Value [Abstract]
Outstanding, aggregate intrinsic value, at June 30, 2014	4,804,000		4,804,000
Outstanding and expected to vest, aggregate intrinsic value, at June 30, 2014	2,787,000		2,787,000
Long-Term Performance-based Awards (PRSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reduction in number of shares available for issuance under the 2007 Plan per award granted			2.0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Outstanding, shares, at January 1, 2014			0
Granted, shares			56,000
Vested, shares			0
Forfeited or expired, shares			0
Outstanding, shares, at June 30, 2014	56,000		56,000
Outstanding and expected to vest at June 30, 2014	49,000		49,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Outstanding, weighted-average grant date fair value per share, at January 1, 2014			$ 0.00
Granted, weighted-average grant date fair value per share	$ 47.95		$ 56.15
Vested, weighted-average grant date fair value per share			$ 0.00
Forfeited or expired, weighted-average grant date fair value per share			$ 0.00
Outstanding, weighted-average grant date fair value per share, at June 30, 2014	$ 56.15		$ 56.15
Weighted Average Remaining Contractual Term [Abstract]
Outstanding and expected to vest, weighted-average remaining contractual term, at June 30, 2014 (in years)			2 years 6 months
Outstanding and expected to vest, weighted-average remaining contractual term, at June 30, 2014 (in years)			2 years 6 months
Aggregate Intrinsic Value [Abstract]
Outstanding, aggregate intrinsic value, at June 30, 2014	3,216,000		3,216,000
Outstanding and expected to vest, aggregate intrinsic value, at June 30, 2014	2,792,000		2,792,000
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			4 years
Grant date fair value of awards released	7,800,000	6,500,000	9,500,000	6,800,000
Reduction in number of shares available for issuance under the 2007 Plan per award granted			2.0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Outstanding, shares, at January 1, 2014			714,000
Granted, shares			250,000
Vested, shares			(246,000)
Forfeited or expired, shares			(12,000)
Outstanding, shares, at June 30, 2014	706,000		706,000
Outstanding and expected to vest at June 30, 2014	641,000		641,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Outstanding, weighted-average grant date fair value per share, at January 1, 2014			$ 38.97
Granted, weighted-average grant date fair value per share	$ 47.81	$ 40.80	$ 50.97	$ 38.28
Vested, weighted-average grant date fair value per share			$ 38.54
Forfeited or expired, weighted-average grant date fair value per share			$ 39.99
Outstanding, weighted-average grant date fair value per share, at June 30, 2014	$ 43.35		$ 43.35
Weighted Average Remaining Contractual Term [Abstract]
Outstanding and expected to vest, weighted-average remaining contractual term, at June 30, 2014 (in years)			1 year 8 months 23 days
Outstanding and expected to vest, weighted-average remaining contractual term, at June 30, 2014 (in years)			1 year 8 months 1 day
Aggregate Intrinsic Value [Abstract]
Outstanding, aggregate intrinsic value, at June 30, 2014	40,599,000		40,599,000
Outstanding and expected to vest, aggregate intrinsic value, at June 30, 2014	$ 36,860,000		$ 36,860,000