ADJUSTED QUARTERLY FINANCIAL INFORMATION - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2021
ADJUSTED QUARTERLY FINANCIAL INFORMATION
Adjustment of inventory and cost of goods sold	$ 2.1	$ 0.4	$ 0.8	$ 0.9
Reduction of tax expenses		0.3	0.2	0.8
Total adjustments of revenue		0.8	0.3	2.4	$ 3.5
Net earnings, Changes in assets and liabilities and Effect of deferred taxes totaling		$ 1.2	$ 1.1	$ 3.3