SIGNIFICANT ACCOUNTING POLICIES - Warranties, Research and Development, Deferred Debt Issuance Costs, and Other - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Research and Development
Research and development expenditures	$ 8.6	$ 8.3	$ 7.2
Deferred Debt Issuance Costs
Amortization of deferred financing costs	0.3	0.2	0.2
Advertising
Advertising costs	5.8	5.7	4.4
Postretirement Benefits
Defined contribution plan expense	$ 1.6	$ 1.9	$ 1.7
Minimum
Product Warranties
Product warranty term	1 year
Maximum
Product Warranties
Product warranty term	5 years