RESTRUCTURING AND OTHER COST REDUCTION INITIATIVES - Restructuring Reserve (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Mar. 31, 2021	Dec. 31, 2021
Restructuring Reserve [Roll Forward]
Balance as of December 31, 2020	$ 2.1	$ 3.0
Provisions and accruals	2.7
Cash payments	(1.8)
Balance as of March 31, 2021	2.1	3.0
North America Operations Optimization
Restructuring Reserve [Roll Forward]
Balance as of December 31, 2020	0.1	0.3
Provisions and accruals	0.8
Cash payments	(0.6)
Balance as of March 31, 2021	0.1	0.3
Workforce Reduction and Other Cost Initiatives
Restructuring Reserve [Roll Forward]
Balance as of December 31, 2020	2.0	2.7
Provisions and accruals	1.9
Cash payments	(1.2)
Balance as of March 31, 2021	$ 2.0	$ 2.7