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SHARE-BASED COMPENSATION - Share-based Compensation Plans (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Value of share-based payment arrangements $ 6.9 $ 11.7
Options    
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Value of share-based payment arrangements 1.1 2.7
Share units    
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Value of share-based payment arrangements $ 5.8 $ 9.0