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Commitment and Contingencies (Details) $ in Thousands			3 Months Ended	9 Months Ended	12 Months Ended
	May 02, 2017 USD ($)	Aug. 18, 2016 USD ($)	Mar. 31, 2017 USD ($) Members	Mar. 31, 2017 member	Jun. 30, 2016 member	Dec. 15, 2016 USD ($)
Subsequent Event [Line Items]
Repurchase units, number			0	0	3
Repurchase dealers, number | member					2
Litigation settlement for (against)		$ (3,268)
Amended litigation settlement, amount						$ 1,938
Loss contingency, damages sought			$ 8,717
Subsequent Event
Subsequent Event [Line Items]
Litigation settlement for (against)	$ 3,000

X

- Definition

Amended Litigation Settlement, Amount

+ References

No definition available.

+ Details

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Namespace Prefix:	mbuu_
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Balance Type:	debit
Period Type:	instant

X

- Definition

Repurchase Dealers, Number

+ References

No definition available.

+ Details

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Namespace Prefix:	mbuu_
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Balance Type:	na
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X

- Definition

Repurchase Units, Number

+ References

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+ Details

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X

- Definition

Amount of judgment or settlement awarded to (against) the entity in respect of litigation.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

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Period Type:	duration

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

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