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Commitments and Contingencies (Details)								12 Months Ended
Commitments and Contingencies (Details)	Jul. 15, 2026 USD ($)	Jul. 29, 2025 USD ($)	Jul. 21, 2025 USD ($)	Feb. 12, 2025 USD ($)	Oct. 07, 2024 USD ($)	Apr. 10, 2024 unit numberOfDealership	Jun. 30, 2023 USD ($)	Jun. 30, 2026 USD ($) unit	Jun. 30, 2025 USD ($) unit	Jun. 30, 2024 unit
Loss Contingencies [Line Items]
Floor financing, repurchase obligations								$ 378,472,000	$ 364,085,000
Number of repurchase units \| unit						19		0	22	17
Financing receivables								$ 0	$ 0
Tommy's Boats
Loss Contingencies [Line Items]
Litigation settlement, amount paid					$ 3,500,000
Number of plaintiffs \| numberOfDealership						15
Amount of legal settlement paid			$ 3,500,000
Securities Class Action Lawsuit
Loss Contingencies [Line Items]
Litigation settlement, amount paid		$ 7,800,000
Delaware Charter Lawsuit
Loss Contingencies [Line Items]
Litigation settlement, amount paid				$ 500,000
Fees and expenses				$ 75,000,000
Batchelder et al. v. Malibu Boats, LLC
Loss Contingencies [Line Items]
Litigation settlement, amount paid							$ 100,000,000	100,000,000
Insurance coverage							$ 26,000,000
Proceeds from insurance coverage								$ 21,000,000
Securities Class Action Lawsuit \| Subsequent Event
Loss Contingencies [Line Items]
Fees and expenses	$ 850,000