Condensed Consolidated Statements of Operations (Unaudited) - OneWater LLC [Member] - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenues
Total revenues	$ 153,698	$ 103,278
Cost of sales (exclusive of depreciation and amortization shown separately below)
Total cost of sales	121,509	79,959
Selling, general and administrative expenses	28,440	21,629
Depreciation and amortization	760	607
Income from operations	2,989	1,083
Other expense (income)
Interest expense - floor plan	2,659	1,787
Interest expense - other	1,853	1,228
Transaction costs	437	298
Change in fair value of warrant liability	(771)	(4,695)
Other income, net	(122)	(45)
Total other expense (income), net	4,056	(1,427)
Net (loss) income	(1,067)	2,510
Less: Net income attributable to non-controlling interest	247	277
Net (loss) income attributable to One Water Marine Holdings, LLC	(1,314)	2,233
Redeemable preferred interest, dividends and accretion	2,345	2,214
OneWater LLC preferred distribution	49	47
Net loss attributable to common interest holders	$ (3,708)	$ (28)
Loss per unit attributable to common interest holders:
Basic (in dollars per share)	$ (48.42)	$ (0.37)
Diluted (in dollars per share)	$ (48.42)	$ (0.37)
New Boat [Member]
Revenues
Total revenues	$ 98,102	$ 67,564
Cost of sales (exclusive of depreciation and amortization shown separately below)
Total cost of sales	81,601	55,322
Pre-Owned Boat [Member]
Revenues
Total revenues	37,821	19,914
Cost of sales (exclusive of depreciation and amortization shown separately below)
Total cost of sales	32,220	16,881
Finance & Insurance [Member]
Revenues
Total revenues	4,325	2,164
Service, Parts & Other [Member]
Revenues
Total revenues	13,450	13,636
Cost of sales (exclusive of depreciation and amortization shown separately below)
Total cost of sales	$ 7,688	$ 7,756