Subsequent Events (Details) - USD ($)	1 Months Ended	12 Months Ended
	Oct. 31, 2023	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021	Oct. 12, 2023	Oct. 31, 2022	Oct. 13, 2022
Subsequent Event [Line Items]
Gain (Loss) on extinguishment of debt		$ (546,000)	$ 309,000	$ (2,025,000)
Senior Notes
Subsequent Event [Line Items]
Gain (Loss) on extinguishment of debt			(300,000)
6.750% Senior Notes (2025 Notes) | Senior Notes
Subsequent Event [Line Items]
Extinguishment of debt		9,000,000	$ 18,400,000
Gain (Loss) on extinguishment of debt		100,000
Revolving Credit Facility
Subsequent Event [Line Items]
Credit facility, maximum borrowing capacity						$ 250,000,000	$ 265,000,000
Gain (Loss) on extinguishment of debt		$ 500,000
Revolving Credit Facility | Maximum
Subsequent Event [Line Items]
Credit facility, maximum borrowing capacity							$ 400,000,000
Subsequent Event | 6.750% Senior Notes (2025 Notes) | Senior Notes
Subsequent Event [Line Items]
Extinguishment of debt	$ 4,300,000
Gain (Loss) on extinguishment of debt	100,000
Subsequent Event | 6.750% Senior Notes (2025 Notes) | Senior Notes | Maximum
Subsequent Event [Line Items]
Secured Revolving Credit Facility	$ 197,900,000
Subsequent Event | Revolving Credit Facility
Subsequent Event [Line Items]
Credit facility, maximum borrowing capacity					$ 300,000,000