Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION (Stock Options) (Details)

v3.3.1.900
STOCK-BASED COMPENSATION (Stock Options) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Stock-based compensation, additional disclosures [Abstract]      
Intrinsic value of stock options exercised $ 14,100 $ 20,200 $ 31,600
Cash received from exercise of stock options $ 16,280 $ 21,797 $ 85,110
Shares available for future grants (in shares) 30,600    
Total intrinsic value, options outstanding $ 400,700    
Total intrinsic value, options exercisable $ 274,600    
Stock Options [Member]      
Summary of stock option activity [Roll Forward]      
Outstanding at beginning of period (in shares) 16,999 16,628 24,722
Granted (in shares) 1,667 2,345 1,269
Exercised (in shares) (1,098) (1,769) (8,718)
Forfeited or expired (in shares) (1,259) (205) (645)
Outstanding at end of period (in shares) 16,309 16,999 16,628
Exercisable at end of period (in shares) 11,177 10,669 9,443
Summary of stock option activity, additional disclosures [Abstract]      
Price, Outstanding at beginning of period (in dollars per share) $ 13.78 $ 12.68 $ 11.68
Price, Granted (in dollars per share) 25.32 21.03 13.30
Price, Exercised (in dollars per share) 14.50 12.32 9.76
Price, Forfeited or expired (in dollars per share) 31.58 19.58 14.93
Price, Outstanding at end of period (in dollars per share) 13.54 13.78 12.68
Price, Exercisable at end of period (in dollars per share) 11.54 13.68 14.94
Weighted average fair value per option granted (in dollars per share) $ 9.93 $ 9.82 $ 6.18
Stock-based compensation, additional disclosures [Abstract]      
Expiration period 10 years    
Stock Incentive Plan [Member]      
Stock-based compensation, additional disclosures [Abstract]      
Shares available for future grants (in shares) 13,500    
Minimum [Member] | Stock Options [Member]      
Stock-based compensation, additional disclosures [Abstract]      
Vesting period 2 years    
Maximum [Member] | Stock Options [Member]      
Stock-based compensation, additional disclosures [Abstract]      
Vesting period 5 years