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Non-controlling Interest - Ownership (Details) - shares | Sep. 30, 2019 | Jun. 30, 2019
--- | --- | ---
Class of Stock [Line Items] |  |
Units (in shares) | 21,295,216 | 21,682,792
Ownership percentage | 100.00% | 100.00%
Non-controlling LLC Unit holders ownership in Malibu Boats Holdings, LLC | Malibu Boat LLC |  |
Class of Stock [Line Items] |  |
Units (in shares) | 830,152 | 830,152
Ownership percentage | 3.90% | 3.80%
Malibu Boats, Inc. ownership in Malibu Boats Holdings, LLC | Parent Company |  |
Class of Stock [Line Items] |  |
Units (in shares) | 20,465,064 | 20,852,640
Ownership percentage | 96.10% | 96.20%

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