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RESTRUCTURING AND IMPAIRMENT CHARGES (Summary Of Restructuring-Related Costs) (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Restructuring and Related Activities [Abstract]    
Severance and other restructuring costs $ 0.6 $ 1.2
Inventory obsolescence and other 0.1 2.4
Total restructuring and restructuring-related costs 0.7 3.6
Amount of total that represents cash charges $ 0.6 $ 1.2