CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (4,509)	$ 27,037	$ (12,479)	$ 38,465
Other comprehensive (loss) income:
Foreign currency translation adjustment	4	8	(5)	19
Comprehensive (loss) income	(4,505)	27,045	(12,484)	38,484
Net (income) attributable to non-controlling interests	0	(1,165)	(119)	(2,530)
Net loss (income) attributable to non-controlling interests of One Water Marine Holdings, LLC	540	(3,068)	1,459	(4,231)
Foreign currency translation adjustment attributable to non-controlling interest of One Water Marine Holdings, LLC	0	(1)	1	(2)
Comprehensive (loss) income attributable to OneWater Marine Inc.	$ (3,965)	$ 22,811	$ (11,143)	$ 31,721