Income Taxes Tax Receivable (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Tax Receivable Agreement [Roll Forward]
Beginning balance as of June 30,	$ 89,561
Payable Pursuant To Tax Receivable Agreement, Total	82,291	$ 93,750	$ 96,470
Payable pursuant to tax receivable agreement, current portion	(4,332)	(4,189)
Ending balance as of June 30,	$ 77,959	$ 89,561

Payable Pursuant To Tax Receivable Agreement, Noncurrent

No definition available.

Name:	mbuu_PayablePursuantToTaxReceivableAgreementNoncurrent
Namespace Prefix:	mbuu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant