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Net Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Earnings Per Share, Basic [Abstract]
Net income attributable to Malibu Boats, Inc.									$ 28,358	$ 18,042	$ 14,661
Weighted-average Stock, Outstanding									17,846,894	17,934,580	15,732,531
Basic net income per share	$ 0.54	$ 0.45	$ 0.39	$ 0.21	$ 0.21	$ 0.32	$ 0.28	$ 0.20	$ 1.59	$ 1.01	$ 0.93
Earnings Per Share, Diluted [Abstract]
Net income attributable to Malibu Boats, Inc.									$ 28,358	$ 18,042	$ 14,661
Basic weighted-average shares outstanding									17,846,894	17,934,580	15,732,531
Restricted stock units granted to employees									104,438	50,847	8,487
Diluted weighted-average shares outstanding									17,951,332	17,985,427	15,741,018
Diluted net income per share	$ 0.53	$ 0.45	$ 0.39	$ 0.21	$ 0.20	$ 0.32	$ 0.28	$ 0.20	$ 1.58	$ 1.00	$ 0.93
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount									1,397,447	1,413,024	1,419,094
Class A Common Stock [Member]
Earnings Per Share, Basic [Abstract]
Weighted-average Stock, Outstanding									17,708,924	17,838,625	15,668,072
Earnings Per Share, Diluted [Abstract]
Basic weighted-average shares outstanding									17,708,924	17,838,625	15,668,072
Restricted Stock [Member]
Earnings Per Share, Basic [Abstract]
Weighted-average Stock, Outstanding									137,970	95,955	64,459
Earnings Per Share, Diluted [Abstract]
Basic weighted-average shares outstanding									137,970	95,955	64,459

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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