Description of Company and Basis of Presentation, Description of the Business (Details)	6 Months Ended
Mar. 31, 2022 State Center Brand Location	Mar. 31, 2021
Description of the Business [Abstract]
Number of retail locations operating \| Location	75
Number of distribution centers \| Center	10
Number of states in which business operating \| State	16
Number of top brands \| Brand	10
Sales Revenue [Member] \| Product Concentration Risk [Member] \| Top Ten Brands [Member]
Description of the Business [Abstract]
Concentration risk percentage	43.80%	39.80%
Sales Revenue [Member] \| Product Concentration Risk [Member] \| Malibu Boats, Inc [Member]
Description of the Business [Abstract]
Concentration risk percentage	15.10%	15.70%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

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