STOCK-BASED COMPENSATION STOCK-BASED COMPENSATION (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock Options Activity [Rollforward]
Outstanding at January 1, 2013 (in shares)	4,060,790
Granted (in shares)	621,000	480,250	575,000
Exercised (in shares)	(500,000)	(100,000)	(500,000)
Canceled (in shares)	(32,063)
Outstanding, December 31, 2013 (in shares)	4,114,822	4,060,790
Option Price, outstanding, beginning of period, minimum		$ 14.28
Option price, outstanding, beginning of period, maximum (in dollars per share)	$ 23.78
Option price, granted (in dollars per share)	$ 23.28
Option price, exercised, minimum (in dollars per share)	$ 14.28
Option price exercised, maximum (in dollars per share)	$ 23.78
Option price, canceled, minimum (in dollars per share)	$ 15.35
Option price, canceled, maximum (in dollars per share)	$ 23.28
Option price, outstanding, minimum, end of period (in dollars per share)	$ 14.28
Option price, outstanding, maximum, end of period (in dollars per share)	$ 23.78
Weighted average option price, beginning of period (in dollars per share)	$ 18.39
Weighted average option price, granted (in dollars per share)	$ 23.28	$ 21.92	$ 18.78
Weighted average option price, exercised (in dollars per share)	$ 16.72
Weighted average option price, canceled (in dollars per share)	$ 20.57
Weighted average option price, outstanding, end of period (in dollars per share)	$ 19.33	$ 18.39
Options exercisable, beginning of period (in shares)	2,961,434
Options exercisable, end of period (in shares)	3,011,702	2,961,434
Weighted average exercise price, exercisable , beginning of period (in dollars per share)	$ 18.00
Weighted average exercise price, exercisable, end of period (in dollars per share)	$ 18.29	$ 18.00