| In millions, except per share items | Mar-31-23 | Dec-31-22 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 | Jun-30-21 |
| | 8-K | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K |
| Net sales | 375.1 | 338.7 | 302.2 | 353.2 | 344.3 | 263.9 | 253.5 | 276.7 |
| Net sales growth | 9.0% | 28.4% | 19.2% | 27.6% | 26.0% | 34.9% | 40.1% | 133.2% |
| Cost of sales | | 263.1 | 227.6 | 263.6 | 247.2 | 200.3 | 193.7 | 207.5 |
| Gross profit | 98.6 | 75.7 | 74.6 | 89.6 | 97.1 | 63.6 | 59.8 | 69.2 |
| Gross margin | 26.3% | 22.3% | 24.7% | 25.4% | 28.2% | 24.1% | 23.6% | 25.0% |
| |
| Operating expenses: | | | | | | | | |
| Selling and marketing | 7.2 | 6.2 | 5.2 | 5.4 | 6.8 | 5.7 | 5.1 | 5.3 |
| General and administrative | 19.5 | 19.1 | 19.2 | 17.2 | 17.1 | 16.0 | 16.1 | 16.8 |
| Amortization | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.9 | 2.1 |
| Operating income | 70.3 | 48.7 | 48.5 | 65.4 | 71.5 | 40.2 | 36.7 | 45.0 |
| Operating margin | 18.7% | 14.4% | 16.0% | 18.5% | 20.8% | 15.2% | 14.5% | 16.3% |
| |
| Other expense, net: | | | | | | | | |
| Other expense (income), net | | 0.2 | 0.1 | 1.0 | 0.0 | 0.0 | 0.0 | -1.0 |
| Interest expense | -0.6 | 0.9 | 1.3 | 0.9 | 0.7 | 0.7 | 0.7 | 0.7 |
| Other expense, net | | 1.1 | 1.4 | | 0.6 | 0.6 | 0.7 | |
| Income before provision for income taxes | | 47.6 | 47.1 | 63.5 | 70.9 | 39.5 | 36.0 | 45.3 |
| Provision for income taxes | 16.3 | 11.2 | 11.0 | 13.8 | 16.1 | 8.6 | 8.1 | 10.3 |
| Net income | | 36.4 | 36.1 | 49.7 | 54.8 | 31.0 | 27.9 | 35.0 |
| Net income attributable to non-controlling interest | | 1.2 | 1.2 | 1.8 | 2.0 | 1.1 | 1.0 | 1.2 |
| Net income attributable to Malibu Boats, Inc. | 53.5 | 35.2 | 34.9 | 47.9 | 52.9 | 29.9 | 26.9 | 33.7 |
| |
| Comprehensive income: | | | | | | | | |
| Net income | | 36.4 | 36.1 | 49.7 | 54.8 | 31.0 | 27.9 | 35.0 |
| |
| Other comprehensive income (loss): | | | | | | | | |
| Change in cumulative translation adjustment | | 1.2 | -1.4 | -1.9 | 0.7 | 0.1 | -0.8 | -0.3 |
| |
| Other comprehensive income (loss) | | | | | | | | |
| Comprehensive income | | | | | | | | |
| Less: comprehensive income attributable to non-controlling interest | | | | | | | | |
| Comprehensive income attributable to Malibu Boats, Inc. | 53.0 | 36.3 | 33.5 | 46.1 | 53.6 | 30.0 | 26.1 | 33.4 |
| |
| Weighted-average shares outstanding used in computing net income per share: | | | | | | | | |
| Basic (in shares) | 0.0 | 20.4 | 20.5 | 20.7 | 20.8 | 20.9 | 20.8 | 20.8 |
| Diluted (in shares) | 0.0 | 20.5 | 20.6 | 21.0 | 21.0 | 21.1 | 21.1 | 21.0 |
| |
| Net income available to Class A Common Stock per share: | | | | | | | | |
| Basic (in dollars per share) | $20,533,649.00 | $1.73 | $1.70 | $2.34 | $2.54 | $1.43 | $1.29 | $1.62 |
| Diluted (in dollars per share) | $20,679,631.00 | $1.72 | $1.69 | $2.31 | $2.51 | $1.41 | $1.28 | $1.60 |