SIGNIFICANT ACCOUNTING POLICIES - Concentrations of Credit and Business Risk - Additional Information (Details) - Supplier Concentration Risk - Cost of Goods - Engine Supplier $ in Millions	12 Months Ended
	Jun. 30, 2022 USD ($) item	Jun. 30, 2021 USD ($) item	Jun. 30, 2020 USD ($) item
MasterCraft
Concentrations of Credit and Business Risk
Number of vendors | item	1	1	1
Purchases during period | $	$ 45.0	$ 40.6	$ 27.6
NauticStar
Concentrations of Credit and Business Risk
Number of vendors | item	1	1	1
Purchases during period | $	$ 21.2	$ 14.8	$ 15.2
Crest
Concentrations of Credit and Business Risk
Number of vendors | item	1	1	1
Purchases during period | $	$ 36.2	$ 23.6	$ 15.5