XML 117 R89.htm IDEA: XBRL DOCUMENT v3.21.2

Segment Information - Additional Information (Detail)	12 Months Ended
	Sep. 30, 2021 Segment ft
Segment Reporting Information [Line Items]
Number of reportable segments | Segment	2
Minimum [Member]
Segment Reporting Information [Line Items]
Number of models producing premium yachts	33
Maximum [Member]
Segment Reporting Information [Line Items]
Number of models producing premium yachts	60

X

- Definition

Number of models producing premium yachts.

+ References

No definition available.

+ Details

Name:	hzo_NumberOfModelsProducingPremiumYachts
Namespace Prefix:	hzo_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8672-108599

+ Details

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

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
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Balance Type:
Period Type: