Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION (Exercise price range) (Details)

v2.4.0.8
STOCK-BASED COMPENSATION (Exercise price range) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
$0.53-$4.99 [Member]
  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Lower range limit (in dollars per share) $ 0.53
Upper range limit (in dollars per share) $ 4.99
Outstanding (in shares) 2,385
Outstanding, weighted average remaining contractual life (in years) 5 years 2 months 12 days
Outstanding, weighted average exercise price (in dollars per share) $ 2.91
Exercisable (in shares) 1,985
Exercisable, weighted average remaining contractual life (in years) 5 years 2 months 12 days
Exercisable, weighted average exercise price (in dollars per share) $ 2.94
$5.00-$9.99 [Member]
  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Lower range limit (in dollars per share) $ 5.00
Upper range limit (in dollars per share) $ 9.99
Outstanding (in shares) 5,625
Outstanding, weighted average remaining contractual life (in years) 8 years 7 months 6 days
Outstanding, weighted average exercise price (in dollars per share) $ 8.82
Exercisable (in shares) 1,357
Exercisable, weighted average remaining contractual life (in years) 8 years 2 months 12 days
Exercisable, weighted average exercise price (in dollars per share) $ 8.83
$10.00-$14.99 [Member]
  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Lower range limit (in dollars per share) $ 10.00
Upper range limit (in dollars per share) $ 14.99
Outstanding (in shares) 4,586
Outstanding, weighted average remaining contractual life (in years) 7 years
Outstanding, weighted average exercise price (in dollars per share) $ 11.39
Exercisable (in shares) 2,369
Exercisable, weighted average remaining contractual life (in years) 5 years 10 months 24 days
Exercisable, weighted average exercise price (in dollars per share) $ 11.33
$15.00-$19.99 [Member]
  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Lower range limit (in dollars per share) $ 15.00
Upper range limit (in dollars per share) $ 19.99
Outstanding (in shares) 1,205
Outstanding, weighted average remaining contractual life (in years) 5 years 6 months
Outstanding, weighted average exercise price (in dollars per share) $ 18.72
Exercisable (in shares) 905
Exercisable, weighted average remaining contractual life (in years) 4 years
Exercisable, weighted average exercise price (in dollars per share) $ 18.79
$20.00-$24.99 [Member]
  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Lower range limit (in dollars per share) $ 20.00
Upper range limit (in dollars per share) $ 24.99
Outstanding (in shares) 1,658
Outstanding, weighted average remaining contractual life (in years) 3 years 1 month 6 days
Outstanding, weighted average exercise price (in dollars per share) $ 24.51
Exercisable (in shares) 1,658
Exercisable, weighted average remaining contractual life (in years) 3 years 1 month 6 days
Exercisable, weighted average exercise price (in dollars per share) $ 24.51
$25.00-$29.99 [Member]
  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Lower range limit (in dollars per share) $ 25.00
Upper range limit (in dollars per share) $ 29.99
Outstanding (in shares) 754
Outstanding, weighted average remaining contractual life (in years) 1 year 4 months 24 days
Outstanding, weighted average exercise price (in dollars per share) $ 29.49
Exercisable (in shares) 754
Exercisable, weighted average remaining contractual life (in years) 1 year 4 months 24 days
Exercisable, weighted average exercise price (in dollars per share) $ 29.49
$30.00-$34.99 [Member]
  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Lower range limit (in dollars per share) $ 30.00
Upper range limit (in dollars per share) $ 34.99
Outstanding (in shares) 2
Outstanding, weighted average remaining contractual life (in years) 0 years 4 months 24 days
Outstanding, weighted average exercise price (in dollars per share) $ 31.26
Exercisable (in shares) 2
Exercisable, weighted average remaining contractual life (in years) 0 years 4 months 24 days
Exercisable, weighted average exercise price (in dollars per share) $ 31.26
$35.00-$39.99 [Member]
  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Lower range limit (in dollars per share) $ 35.00
Upper range limit (in dollars per share) $ 39.99
Outstanding (in shares) 413
Outstanding, weighted average remaining contractual life (in years) 1 year 4 months 24 days
Outstanding, weighted average exercise price (in dollars per share) $ 39.95
Exercisable (in shares) 413
Exercisable, weighted average remaining contractual life (in years) 1 year 4 months 24 days
Exercisable, weighted average exercise price (in dollars per share) $ 39.95