Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION (Stock Options) (Details)

v3.6.0.2
STOCK-BASED COMPENSATION (Stock Options) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Stock-based compensation, additional disclosures [Abstract]      
Intrinsic value of stock options exercised $ 8,500 $ 14,100 $ 20,200
Cash received from exercise of stock options $ 20,299 $ 16,280 $ 21,797
Shares available for future grants (in shares) 29,300    
Total intrinsic value, options outstanding $ 433,100    
Total intrinsic value, options exercisable $ 335,900    
Stock Options [Member]      
Summary of stock option activity [Roll Forward]      
Outstanding at beginning of period (in shares) 16,309 16,999 16,628
Granted (in shares) 1,103 1,667 2,345
Exercised (in shares) (1,063) (1,098) (1,769)
Forfeited or expired (in shares) (66) (1,259) (205)
Outstanding at end of period (in shares) 16,283 16,309 16,999
Exercisable at end of period (in shares) 12,628 11,177 10,669
Summary of stock option activity, additional disclosures [Abstract]      
Price, Outstanding at beginning of period (in dollars per share) $ 13.54 $ 13.78 $ 12.68
Price, Granted (in dollars per share) 19.53 25.32 21.03
Price, Exercised (in dollars per share) 19.10 14.50 12.32
Price, Forfeited or expired (in dollars per share) 22.39 31.58 19.58
Price, Outstanding at end of period (in dollars per share) 13.55 13.54 13.78
Price, Exercisable at end of period (in dollars per share) 12.01 11.54 13.68
Weighted average fair value per option granted (in dollars per share) $ 6.98 $ 9.93 $ 9.82
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) 11,900    
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