Net Income (Loss) Per Share/Unit - Schedule of Anti-Dilutive Units (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Series A preferred units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive units (in Units)	0	4,029	0	0
Restricted units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive units (in Units)	0	205	0	57
Restricted shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive units (in Units)	236	0	236	0