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REVENUE RECOGNITION (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
REVENUE RECOGNITION (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Apr. 01, 2018	Mar. 31, 2019	Apr. 01, 2018	Jun. 30, 2018
Revenue by Categories
Revenue	$ 128,390	$ 93,811	$ 343,572	$ 237,295
Revenue practical expedients
Revenue, Practical Expedient, Financing Component			true
Revenue, Practical Expedient, Initial Application and Transition, Nondisclosure of Transaction Price Allocation to Remaining Performance Obligation			true
Accrued Expenses and Other Current Liabilities
Contract liabilities
Customer contract liabilities	529		$ 529		$ 2,194
Boats and trailers
Revenue by Categories
Revenue	126,018		335,610
Parts
Revenue by Categories
Revenue	1,986		6,773
Other
Revenue by Categories
Revenue	386		1,189
MasterCraft
Revenue by Categories
Revenue	79,431	69,257	232,062	192,545
MasterCraft \| Boats and trailers
Revenue by Categories
Revenue	77,329		224,604
MasterCraft \| Parts
Revenue by Categories
Revenue	1,798		6,464
MasterCraft \| Other
Revenue by Categories
Revenue	304		994
NauticStar
Revenue by Categories
Revenue	21,652	$ 24,554	58,255	$ 44,750
NauticStar \| Boats and trailers
Revenue by Categories
Revenue	21,624		58,187
NauticStar \| Parts
Revenue by Categories
Revenue	22		57
NauticStar \| Other
Revenue by Categories
Revenue	6		11
Crest
Revenue by Categories
Revenue	27,307		53,255
Crest \| Boats and trailers
Revenue by Categories
Revenue	27,065		52,819
Crest \| Parts
Revenue by Categories
Revenue	166		252
Crest \| Other
Revenue by Categories
Revenue	$ 76		$ 184