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Net Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Weighted-average Class A Common Stock	15,536,840		15,160,413
Basic net income per share	$ 0.21us-gaap_EarningsPerShareBasic		$ 0.31us-gaap_EarningsPerShareBasic
Earnings Per Share, Basic [Abstract]
Net income attributable to Malibu Boats, Inc.	$ 3,264us-gaap_NetIncomeLoss	$ 0us-gaap_NetIncomeLoss	$ 4,643us-gaap_NetIncomeLoss	$ 0us-gaap_NetIncomeLoss
Weighted average shares outstanding used in computing net income per share, Basic (in shares)	15,536,840		15,160,413
Diluted weighted-average shares outstanding	15,628,390		15,206,188
Diluted net income per share	$ 0.21us-gaap_EarningsPerShareDiluted		$ 0.31us-gaap_EarningsPerShareDiluted
Antidilutive securities excluded from computation of earnings per share, amount	7,046,594		7,046,594
Class A Common Stock [Member]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Weighted-average Class A Common Stock	15,473,570		15,098,418
Earnings Per Share, Basic [Abstract]
Weighted average shares outstanding used in computing net income per share, Basic (in shares)	15,473,570		15,098,418
Fully Vested/Participating [Member] \| Restricted Stock [Member]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Weighted-average Class A Common Stock	63,270		61,995
Earnings Per Share, Basic [Abstract]
Weighted average shares outstanding used in computing net income per share, Basic (in shares)	63,270		61,995
Australia Licensee [Member] \| Restricted Stock [Member]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Weighted Average Number Diluted Shares Outstanding Adjustment	91,550		45,775