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SHARE-BASED COMPENSATION - Outstanding and Exercisable Options (Details)
12 Months Ended
Dec. 31, 2021
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options outstanding, number of options (in options) | shares 1,576,100
Options outstanding, weighted average remaining (in years) 6 years 3 months 18 days
Options outstanding, weighted average exercise price (in dollars per option) $ 20.17
Options exercisable, number of options (in options) | shares 939,300
Options exercisable, weighted average exercise price (in dollars per option) $ 22.99
$16.00-$19.00  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options outstanding, number of options (in options) | shares 636,700
Options outstanding, weighted average remaining (in years) 7 years 2 months 12 days
Options outstanding, weighted average exercise price (in dollars per option) $ 16.46
$16.00-$19.00 | Minimum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options outstanding, exercise price range, lower range limit 16.00
$16.00-$19.00 | Maximum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options outstanding, exercise price range, lower range limit $ 19.00
$20.00-$24.00  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options outstanding, number of options (in options) | shares 721,200
Options outstanding, weighted average remaining (in years) 5 years 7 months 6 days
Options outstanding, weighted average exercise price (in dollars per option) $ 22.28
Options exercisable, number of options (in options) | shares 721,200
Options exercisable, weighted average exercise price (in dollars per option) $ 22.28
$20.00-$24.00 | Minimum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options outstanding, exercise price range, lower range limit 20.00
$20.00-$24.00 | Maximum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options outstanding, exercise price range, lower range limit $ 24.00
$25.00-$26.00  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options outstanding, number of options (in options) | shares 218,200
Options outstanding, weighted average remaining (in years) 5 years 7 months 6 days
Options outstanding, weighted average exercise price (in dollars per option) $ 25.32
Options exercisable, number of options (in options) | shares 218,100
Options exercisable, weighted average exercise price (in dollars per option) $ 25.32
$25.00-$26.00 | Minimum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options outstanding, exercise price range, lower range limit 25.00
$25.00-$26.00 | Maximum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options outstanding, exercise price range, lower range limit $ 26.00