Condensed Consolidated Statements of Members' Equity (Unaudited) - OneWater LLC [Member] - USD ($) $ in Thousands	Redeemable Preferred Interest in Subsidiary [Member]	Redeemable Preferred Interest in Subsidiary [Member] Cash Distribution [Member]	Members' Equity, Common Interest [Member]	Members' Equity, Common Interest [Member] Cash Distribution [Member]	Members' Equity, Non-controlling Interest in Subsidiary [Member]	Members' Equity, Non-controlling Interest in Subsidiary [Member] Cash Distribution [Member]	Members Equity [Member]	Members Equity [Member] Cash Distribution [Member]	Total
Redeemable Preferred Interest in Subsidiary, Beginning Balance at Sep. 30, 2018	$ 79,965		$ 15,963		$ 5,093		$ 21,056
Increase (Decrease) in Temporary Equity [Roll Forward]
Net (loss) income	0		2,233		277		2,510
Distributions to members		$ (823)		$ (126)		$ (500)		$ (626)
Accumulated unpaid preferred returns	2,057		(2,057)		0		(2,057)
Accretion of redeemable preferred and issuance costs	157		(157)		0		(157)
Equity-based compensation	0		39		0		39
Redeemable Preferred Interest in Subsidiary, Ending Balance at Dec. 31, 2018	81,356		15,895		4,870		20,765
Redeemable Preferred Interest in Subsidiary, Beginning Balance at Sep. 30, 2019	86,018		31,770		6,199		37,969		$ 86,018
Increase (Decrease) in Temporary Equity [Roll Forward]
Net (loss) income	0		(1,314)		247		(1,067)
Distributions to members		$ (1,310)		$ (189)		$ (732)		$ (921)
Accumulated unpaid preferred returns	2,183		(2,183)		0		(2,183)
Accretion of redeemable preferred and issuance costs	162		(162)		0		(162)
Equity-based compensation	0		39		0		39
Redeemable Preferred Interest in Subsidiary, Ending Balance at Dec. 31, 2019	$ 87,053		$ 27,961		$ 5,714		$ 33,675		$ 87,053