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RELATED PARTY TRANSACTIONS (Details) - Key management - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Related party transactions    
Cash compensation - salaries, short-term incentives, and other benefits $ 8.2 $ 7.4
Long-term incentives, including share-based payments 6.8 8.8
Termination and post-retirement benefits 1.3 1.1
Total compensation paid to key management personnel $ 16.3 $ 17.3