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Acquisition Pro forma (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2017 | Dec. 31, 2016
Business Acquisition [Line Items] |  |  |  |
Net sales | $ 114,373 | $ 67,661 | $ 217,914 | $ 129,682
Net income | (5,584) | 7,737 | 830 | 11,963
Net income attributable to Malibu Boats, Inc. | $ (6,383) | $ 6,901 | $ (498) | $ 10,681
Basic (in dollars per share) | $ (0.31) | $ 0.39 | $ (0.03) | $ 0.60
Diluted (in dollars per share) | $ (0.31) | $ 0.39 | $ (0.03) | $ 0.60
Cobalt Boats, LLC | Pro Forma [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Net sales | $ 114,373 | $ 89,327 | $ 217,914 | $ 190,277
Net income | (6,271) | 3,965 | 496 | 11,760
Net income attributable to Malibu Boats, Inc. | $ (7,018) | $ 3,591 | $ (805) | $ 10,635
Basic (in dollars per share) | $ (0.34) | $ 0.18 | $ (0.04) | $ 0.54
Diluted (in dollars per share) | $ (0.34) | $ 0.18 | $ (0.04) | $ 0.54

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