Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2017	Sep. 06, 2017	Dec. 31, 2015
Document Information [Line Items]
Entity Registrant Name	MALIBU BOATS, INC.
Entity Central Index Key	0001590976
Document Type	10-K
Document Period End Date	Jun. 30, 2017
Amendment Flag	false
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--06-30
Entity Filer Category	Accelerated Filer
Entity Public Float			$ 303.0
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Class A Common Stock [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		20,287,030
Class B Common Stock [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		18