CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Revenues:
Total revenues	$ 1,772,630	$ 1,936,310	$ 1,744,822
Cost of sales:
Total cost of sales	1,337,567	1,401,184	1,191,167
Selling, general and administrative expenses	332,680	345,524	302,113
Depreciation and amortization	19,401	23,898	15,605
Transaction costs	1,530	1,839	7,724
Change in fair value of contingent consideration	4,248	(1,604)	10,380
Restructuring and impairment	12,386	147,402	0
Income from operations	64,818	18,067	217,833
Other expense (income):
Interest expense – floor plan	34,087	25,080	4,647
Interest expense – other	37,050	34,557	13,201
Loss on extinguishment of debt	0	0	356
Other expense, net	14	953	3,793
Total other expense, net	71,151	60,590	21,997
Net (loss) income before income tax (benefit) expense	(6,333)	(42,523)	195,836
Income tax (benefit) expense	(157)	(3,412)	43,225
Net (loss) income	(6,176)	(39,111)	152,611
Net (income) attributable to non-controlling interests	(119)	(3,810)	(2,998)
Net loss (income) attributable to non-controlling interests of One Water Marine Holdings, LLC	590	4,329	(18,669)
Net (loss) income attributable to OneWater Marine Inc.	(5,705)	(38,592)	130,944
New boat
Revenues:
Total revenues	1,118,292	1,223,691	1,139,331
Cost of sales:
Total cost of sales	921,406	955,222	834,026
Pre-owned boat
Revenues:
Total revenues	312,193	334,477	294,832
Cost of sales:
Total cost of sales	248,068	258,524	213,167
Finance & insurance income
Revenues:
Total revenues	51,494	56,325	55,977
Service, parts & other
Revenues:
Total revenues	290,651	321,817	254,682
Cost of sales:
Total cost of sales	$ 168,093	$ 187,438	$ 143,974
Class A Common Stock
Other expense (income):
Net (loss) earnings per share of Class A common stock – basic (in dollars per share)	$ (0.39)	$ (2.69)	$ 9.44
Net (loss) earnings per share of Class A common stock – diluted (in dollars per share)	$ (0.39)	$ (2.69)	$ 9.13
Basic weighted-average shares of Class A common stock outstanding (in shares)	14,585	14,328	13,877
Diluted weighted-average shares of Class A common stock outstanding (in shares)	14,585	14,328	14,337