ACQUISITION - Purchase Price Allocation (Details) $ in Thousands		3 Months Ended		9 Months Ended
	Oct. 02, 2017 USD ($)	Mar. 31, 2019 USD ($)	Dec. 30, 2018 USD ($)	Mar. 31, 2019 USD ($)	Apr. 01, 2018 USD ($)	Oct. 01, 2018 USD ($) item	Jun. 30, 2018 USD ($)
Acquisition
Number of boat brands | item						3
Purchase Price:
Cash paid, net of cash acquired				$ 81,729	$ 80,511
Recognized preliminary amounts of identifiable assets acquired and (liabilities assumed), at fair value:
Goodwill		$ 101,760		101,760			$ 65,792
Crest
Purchase Price:
Cash paid, net of cash acquired		81,729
Recognized preliminary amounts of identifiable assets acquired and (liabilities assumed), at fair value:
Accounts receivable		5,272	$ 5,272	5,272
Inventories		9,853	9,928	9,853
Other current assets		185	185	185
Property, plant and equipment		1,840	1,840	1,840
Identifiable intangible assets		35,245	35,245	35,245		$ 35,245
Current liabilities		(6,634)	(6,338)	(6,634)
Fair value of assets acquired and liabilities assumed		45,761	46,132	45,761
Goodwill		35,968	35,597	35,968		$ 35,968
Total purchase price allocation		81,729	81,729	81,729
Crest | As Reported
Purchase Price:
Cash paid, net of cash acquired			$ 81,729
Crest | Subsequent Adjustments to Fair Value
Recognized preliminary amounts of identifiable assets acquired and (liabilities assumed), at fair value:
Inventories		(75)		(75)
Current liabilities		(296)		(296)
Fair value of assets acquired and liabilities assumed		(371)		(371)
Goodwill		$ 371		$ 371
NauticStar
Purchase Price:
Cash paid, net of cash acquired	$ 80,511
Recognized preliminary amounts of identifiable assets acquired and (liabilities assumed), at fair value:
Accounts receivable	1,773
Inventories	6,358
Other current assets	94
Indemnification asset	166
Deferred income taxes	83
Property, plant and equipment	4,945
Identifiable intangible assets	36,000
Current liabilities	(4,858)
Unrecognized tax positions	(249)
Fair value of assets acquired and liabilities assumed	44,312
Goodwill	36,199
Total purchase price allocation	$ 80,511