Revenue Recognition - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Disaggregation of Revenue [Line Items]
Net sales	$ 914,590	$ 807,561	$ 829,035
US
Disaggregation of Revenue [Line Items]
Net sales	763,247	731,437	738,114
International
Disaggregation of Revenue [Line Items]
Net sales	151,343	76,124	90,921
Boat and trailer sales
Disaggregation of Revenue [Line Items]
Net sales	892,326	786,326	809,992
Part and other sales
Disaggregation of Revenue [Line Items]
Net sales	22,264	21,235	19,043
Malibu
Disaggregation of Revenue [Line Items]
Net sales	312,907	312,698	279,131
Malibu \| US
Disaggregation of Revenue [Line Items]
Net sales	262,534	268,095	227,352
Malibu \| International
Disaggregation of Revenue [Line Items]
Net sales	50,373	44,603	51,779
Malibu \| Boat and trailer sales
Disaggregation of Revenue [Line Items]
Net sales	296,314	296,980	264,811
Malibu \| Part and other sales
Disaggregation of Revenue [Line Items]
Net sales	16,593	15,718	14,320
Saltwater Fishing
Disaggregation of Revenue [Line Items]
Net sales	284,006	279,635	327,542
Saltwater Fishing \| US
Disaggregation of Revenue [Line Items]
Net sales	276,026	263,761	308,307
Saltwater Fishing \| International
Disaggregation of Revenue [Line Items]
Net sales	7,980	15,874	19,235
Saltwater Fishing \| Boat and trailer sales
Disaggregation of Revenue [Line Items]
Net sales	282,589	277,218	325,993
Saltwater Fishing \| Part and other sales
Disaggregation of Revenue [Line Items]
Net sales	1,417	2,417	1,549
Cobalt
Disaggregation of Revenue [Line Items]
Net sales	233,374	215,228	222,362
Cobalt \| US
Disaggregation of Revenue [Line Items]
Net sales	213,423	199,581	202,455
Cobalt \| International
Disaggregation of Revenue [Line Items]
Net sales	19,951	15,647	19,907
Cobalt \| Boat and trailer sales
Disaggregation of Revenue [Line Items]
Net sales	229,889	212,128	219,188
Cobalt \| Part and other sales
Disaggregation of Revenue [Line Items]
Net sales	3,485	$ 3,100	$ 3,174
Saxdor
Disaggregation of Revenue [Line Items]
Net sales	84,303
Saxdor \| US
Disaggregation of Revenue [Line Items]
Net sales	11,264
Saxdor \| International
Disaggregation of Revenue [Line Items]
Net sales	73,039
Saxdor \| Boat and trailer sales
Disaggregation of Revenue [Line Items]
Net sales	83,534
Saxdor \| Part and other sales
Disaggregation of Revenue [Line Items]
Net sales	$ 769