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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 |

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