Non-controlling Interest Narrative (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Jun. 30, 2016
Noncontrolling Interest [Line Items]
Treasury stock, shares, retired (in shares)	(5,873,000)
Tax distributions payable to non-controlling LLC Unit holders	$ 520	$ 434
Non-controlling LLC Unit holders ownership in Malibu Boats Holdings, LLC
Noncontrolling Interest [Line Items]
Tax distributions payable to non-controlling LLC Unit holders	520		$ 341
Tax distributions paid to non-controlling LLC Unit holders	$ 1,052	$ 660
Class A Common Stock [Member]
Noncontrolling Interest [Line Items]
Issuance LLC Units (in shares)	245,616