Preferred Units - Narrative (Details) $ / shares in Units, $ in Thousands			5 Months Ended	12 Months Ended
	Feb. 26, 2021	Aug. 13, 2020	Feb. 26, 2021 USD ($) shares	Sep. 30, 2021 USD ($) $ / shares shares	Sep. 30, 2020 $ / shares shares
Temporary Equity [Line Items]
Mandatory redemption period		1 year
Preferred stock, shares authorized (in Shares)				25,000,000	25,000,000
Preferred stock, par value (USD per Share) | $ / shares				$ 0.0001	$ 0.0001
Preferred stock, shares issued (in Shares)				0	0
Preferred stock, shares outstanding (in Shares)				0	0
Series A preferred units
Temporary Equity [Line Items]
Conversion of units, ratio	1
Preferred units converted to common units (in Units)			511,695	511,695
Units converted to common units | $			$ 61,200	$ 61,196
Dividends paid | $			$ 1,500
Dividends paid (in Units)			511,695
Preferred stock, shares authorized (in Shares)				25,000,000
Preferred stock, par value (USD per Share) | $ / shares				$ 0.0001
Preferred stock, shares issued (in Shares)				0
Preferred stock, shares outstanding (in Shares)				0