Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Description of reference rate used for variable rate of debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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.

+ Details

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- Details

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- Details

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Balance Type:
Period Type:

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_SecuredDebtMember
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- Details

Name:	us-gaap_DebtInstrumentAxis=mbuu_TermLoansMember
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Subsequent Events (Details) - USD ($)	Jul. 08, 2022	Dec. 30, 2020	Dec. 29, 2020
Subsequent Event \| Amended Credit Agreement \| Revolving credit loan
Subsequent Event [Line Items]
Proceeds from lines of credit	$ 121,700,000
Revolving Credit
Subsequent Event [Line Items]
Maximum borrowing capacity		$ 170,000,000	$ 120,000,000
Revolving Credit \| Subsequent Event \| Amended Credit Agreement \| Minimum
Subsequent Event [Line Items]
Unused capacity, commitment fee percentage	0.15%
Revolving Credit \| Subsequent Event \| Amended Credit Agreement \| Maximum
Subsequent Event [Line Items]
Unused capacity, commitment fee percentage	0.30%
Revolving Credit \| Subsequent Event \| Amended Credit Agreement \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Subsequent Event [Line Items]
Debt instrument, description of variable rate basis	one-month
Revolving Credit \| Subsequent Event \| Amended Credit Agreement \| Federal Funds Effective Swap Rate
Subsequent Event [Line Items]
Basis spread on variable rate	0.50%
Revolving Credit \| Subsequent Event \| Amended Credit Agreement \| Base Rate
Subsequent Event [Line Items]
Basis spread on variable rate	1.00%
Revolving Credit \| Subsequent Event \| Amended Credit Agreement \| Base Rate \| Minimum
Subsequent Event [Line Items]
Basis spread on variable rate	0.25%
Revolving Credit \| Subsequent Event \| Amended Credit Agreement \| Base Rate \| Maximum
Subsequent Event [Line Items]
Basis spread on variable rate	1.00%
Revolving Credit \| Subsequent Event \| Amended Credit Agreement \| LIBOR \| Minimum
Subsequent Event [Line Items]
Basis spread on variable rate	1.25%
Revolving Credit \| Subsequent Event \| Amended Credit Agreement \| LIBOR \| Maximum
Subsequent Event [Line Items]
Basis spread on variable rate	2.00%
Revolving Credit \| Subsequent Event \| Amended Credit Agreement \| Revolving credit loan
Subsequent Event [Line Items]
Maximum borrowing capacity	$ 350,000,000
Secured Debt \| Subsequent Event \| Term Loans
Subsequent Event [Line Items]
Incremental term loans, amount	$ 200,000,000