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Fair Value Measurements - Summary of Ranges for Significant Quantitative Unobservable Inputs Utilized in Fair Value Measurements (Details) | 12 Months Ended
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Sep. 30, 2023
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Discount rate | 11.00%
Maximum [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Earnout projected growth (including net operating income) | 25.00%
Minimum [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Earnout projected growth (including net operating income) | 23.00%

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- Definition Discount rate percent. + References No definition available. + Details
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Namespace Prefix: | hzo_
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Balance Type: | na
Period Type: | duration

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- Definition Earnout projected growth (including net operating income) rate percent. + References No definition available. + Details
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Namespace Prefix: | hzo_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- 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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Period Type: | duration

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- Details
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Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |