Annual report pursuant to Section 13 and 15(d)

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

v3.20.4
STOCK-BASED COMPENSATION (Exercise price range) (Details)
shares in Thousands
 12 Months Ended
Dec. 31, 2020
$ / shares
shares
$5.00-$9.99 [Member]  
Share-based Payment Arrangement, Option, 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) | shares 4,112
Outstanding, weighted average remaining contractual life (in years) 1 year 10 months 24 days
Outstanding, weighted average exercise price (in dollars per share) $ 8.76
Exercisable (in shares) | shares 4,112
Exercisable, weighted average remaining contractual life (in years) 1 year 10 months 24 days
Exercisable, weighted average exercise price (in dollars per share) $ 8.76
$10.00 - $14.99 [Member]  
Share-based Payment Arrangement, Option, 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) | shares 863
Outstanding, weighted average remaining contractual life (in years) 1 year 1 month 6 days
Outstanding, weighted average exercise price (in dollars per share) $ 11.52
Exercisable (in shares) | shares 863
Exercisable, weighted average remaining contractual life (in years) 1 year 1 month 6 days
Exercisable, weighted average exercise price (in dollars per share) $ 11.52
$15.00 - $19.99 [Member]  
Share-based Payment Arrangement, Option, 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) | shares 731
Outstanding, weighted average remaining contractual life (in years) 5 years
Outstanding, weighted average exercise price (in dollars per share) $ 19.30
Exercisable (in shares) | shares 731
Exercisable, weighted average remaining contractual life (in years) 5 years
Exercisable, weighted average exercise price (in dollars per share) $ 19.30
$20.00 - $24.99 [Member]  
Share-based Payment Arrangement, Option, 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) | shares 1,301
Outstanding, weighted average remaining contractual life (in years) 3 years 1 month 6 days
Outstanding, weighted average exercise price (in dollars per share) $ 21.03
Exercisable (in shares) | shares 1,301
Exercisable, weighted average remaining contractual life (in years) 3 years 1 month 6 days
Exercisable, weighted average exercise price (in dollars per share) $ 21.03
$25.00 - $29.99 [Member]  
Share-based Payment Arrangement, Option, 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) | shares 1,200
Outstanding, weighted average remaining contractual life (in years) 5 years 2 months 12 days
Outstanding, weighted average exercise price (in dollars per share) $ 27.36
Exercisable (in shares) | shares 1,174
Exercisable, weighted average remaining contractual life (in years) 5 years 2 months 12 days
Exercisable, weighted average exercise price (in dollars per share) $ 27.32
$30.00 - $44.99 [Member]  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Lower range limit (in dollars per share) 30.00
Upper range limit (in dollars per share) $ 44.99
Outstanding (in shares) | shares 592
Outstanding, weighted average remaining contractual life (in years) 7 years 1 month 6 days
Outstanding, weighted average exercise price (in dollars per share) $ 43.82
Exercisable (in shares) | shares 492
Exercisable, weighted average remaining contractual life (in years) 7 years 1 month 6 days
Exercisable, weighted average exercise price (in dollars per share) $ 43.84
$45.00 - $60.99 [Member]  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Lower range limit (in dollars per share) 45.00
Upper range limit (in dollars per share) $ 60.99
Outstanding (in shares) | shares 491
Outstanding, weighted average remaining contractual life (in years) 8 years 2 months 12 days
Outstanding, weighted average exercise price (in dollars per share) $ 56.82
Exercisable (in shares) | shares 154
Exercisable, weighted average remaining contractual life (in years) 8 years 2 months 12 days
Exercisable, weighted average exercise price (in dollars per share) $ 56.77
$61.00 - $70.99 [Member]  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Lower range limit (in dollars per share) 61.00
Upper range limit (in dollars per share) $ 70.99
Outstanding (in shares) | shares 33
Outstanding, weighted average remaining contractual life (in years) 9 years 10 months 24 days
Outstanding, weighted average exercise price (in dollars per share) $ 70.26
Exercisable (in shares) | shares 0
Exercisable, weighted average remaining contractual life (in years) 0 years
Exercisable, weighted average exercise price (in dollars per share) $ 0