STOCK-BASED COMPENSATION (Exercise Price Range) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range (in usd per share)	$ 15.01
Range of Exercise Prices, Upper Range (in usd per share)	$ 41
Options Outstanding, Number Outstanding (in shares)	1,358,289
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	5 years 2 months 23 days
Options Outstanding, Weighted-Average Exercise Price (in usd per share)	$ 28.70
Number Exercisable (in shares)	788,287
Weighted-Average Exercise Price (in usd per share)	$ 30.88
Exercise Price $15.01 to $21.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range (in usd per share)	$ 15.01
Range of Exercise Prices, Upper Range (in usd per share)	$ 21.00
Options Outstanding, Number Outstanding (in shares)	268,101
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	6 years 1 month 2 days
Options Outstanding, Weighted-Average Exercise Price (in usd per share)	$ 19.97
Number Exercisable (in shares)	140,111
Weighted-Average Exercise Price (in usd per share)	$ 19.60
Exercise Price $21.01 to $28.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range (in usd per share)	$ 21.01
Range of Exercise Prices, Upper Range (in usd per share)	$ 28.00
Options Outstanding, Number Outstanding (in shares)	254,578
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	7 years 5 months 26 days
Options Outstanding, Weighted-Average Exercise Price (in usd per share)	$ 23.39
Number Exercisable (in shares)	80,818
Weighted-Average Exercise Price (in usd per share)	$ 22.89
Exercise Price $28.01 to $35.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range (in usd per share)	$ 28.01
Range of Exercise Prices, Upper Range (in usd per share)	$ 35
Options Outstanding, Number Outstanding (in shares)	564,610
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	5 years 5 months 26 days
Options Outstanding, Weighted-Average Exercise Price (in usd per share)	$ 31.33
Number Exercisable (in shares)	296,358
Weighted-Average Exercise Price (in usd per share)	$ 32.93
Exercise Price $35.01 to $41.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range (in usd per share)	$ 35.01
Range of Exercise Prices, Upper Range (in usd per share)	$ 41
Options Outstanding, Number Outstanding (in shares)	271,000
Options Outstanding, Weighted-Average Remaining Contractual Life (in years)	1 year 8 months 15 days
Options Outstanding, Weighted-Average Exercise Price (in usd per share)	$ 36.86
Number Exercisable (in shares)	271,000
Weighted-Average Exercise Price (in usd per share)	$ 36.86