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SHARE-BASED COMPENSATION - Additional Information (Detail)
$ / shares in Units, shares in Thousands, $ in Millions
12 Months Ended
Mar. 15, 2020
Dec. 31, 2020
USD ($)
numberOfPerformanceCondition
$ / shares
shares
Dec. 31, 2019
USD ($)
$ / shares
Dec. 31, 2018
USD ($)
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Awards outstanding to officers, directors and key employees | shares   1,700    
Share-based compensation   $ 6.3 $ 10.1 $ 12.3
Unrecognized compensation expense related to share-based compensation   $ 12.3    
Remaining weighted-average period   2 years 2 months 12 days    
Recognized income tax benefit   $ 0.4 2.0 2.5
Weighted-average remaining contractual life of options exercisable   2 years 6 months    
Range of prices, lower limit | $ / shares   $ 32.05    
Range of prices, upper limit | $ / shares   $ 50.47    
Restricted Stock Units (RSUs)        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation   $ 4.6 5.8 7.9
Award vesting period   4 years    
Stock and Stock Units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Intrinsic value of units vested   $ 2.3 $ 5.7 $ 4.8
Granted (in shares) | shares   480    
Vested and settled (in shares) | shares   323    
Granted (in USD per share) | $ / shares   $ 8.56 $ 17.35 $ 18.79
Long Term Performance Stock Unit Awards        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation   $ 1.7 $ 4.3 $ 4.3
Performance Shares        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Intrinsic value of units vested   1.3 $ 1.0 $ 0.3
Granted (in USD per share) | $ / shares     $ 16.66 $ 15.25
Stock Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation   $ 0.0 $ 0.0  
Award vesting period   4 years    
Stock option year term   10 years    
2018        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total number of shares authorized to be issued under our stock incentive plans | shares   1,200    
2018 | Performance Shares        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation award, number of performance conditions | numberOfPerformanceCondition   2    
Vested award performance target level, percentage 100.00%      
Award Vesting Rights, Performance Metric, Percentage 73.00%      
2018 | Performance Shares | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Possible payouts   0.00%    
2018 | Performance Shares | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Possible payouts   200.00%    
2017 and 2018 | Long Term Performance Stock Unit Awards        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   2 years    
Performance Period   2 years    
Market Conditions | Performance Shares        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted (in shares) | shares [1]   162    
Vested and settled (in shares) | shares [1]   89    
Granted (in USD per share) | $ / shares   $ 7.99    
[1] Performance units with variable payouts are shown at target level of performance.