Redeemable Preferred Interest in Subsidiary (Details) - OneWater LLC [Member] - shares	3 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Sep. 30, 2016	Mar. 28, 2014
Redeemable Preferred Interest in Subsidiary [Abstract]
Units outstanding (in shares)	76,573	75,816		100,000
One Water Assets & Operations [Member]
Redeemable Preferred Interest in Subsidiary [Abstract]
Units outstanding (in shares)			100,000
Preferred units outstanding (in shares)			68,000
Preferred interest rate of return	10.00%
Preferred interest redemption period	5 years