Quarterly Financial Data (Unaudited) - (Details) - $ / shares shares in Thousands	9 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share, Basic and Diluted [Abstract] (Deprecated 2022)
Basic (in dollars per share)	$ 1.30	$ (0.26)	$ (0.57)	$ (0.56)
Diluted (in dollars per share)	$ 1.30	$ (0.26)	$ (0.57)	$ (0.56)
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Basic (in shares)	40,931	36,308	36,308	36,308
Diluted (in shares)	41,008	36,308	36,308	36,308