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LEASE COMMITMENTS - Operating Lease Cost (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Lease Commitments [Abstract]      
Operating lease cost $ 31.3 $ 32.0 $ 33.8
Variable lease cost 4.1 4.9 6.7
Short-term lease cost 4.3 4.8 5.0
Total operating lease costs $ 39.7 $ 41.7 $ 45.5