| Cover Page | Nov. 06, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Nov. 6, 2020 |
| Entity Registrant Name | MALIBU BOATS, INC. |
| Entity File Number | 001-36290 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 5075 Kimberly Way, |
| Entity Address, City or Town | Loudon, |
| Entity Address, State or Province | TN |
| Entity Address, Postal Zip Code | 37774 |
| Entity Tax Identification Number | 46-4024640 |
| City Area Code | (865) |
| Local Phone Number | 458-5478 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Issuer Tender Offer | false |
| Pre-commencement Tender Offer | false |
| Title of 12(b) Security | Class A Common Stock, par value $0.01 |
| Trading Symbol | MBUU |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001590976 |
| Amendment Flag | false |
