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Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Sep. 30, 2023	Nov. 08, 2021
Debt Instrument [Line Items]
Debt interest rate			4.00%
Total debt	$ 241,054	$ 242,667
Less unamortized debt discount and issuance costs	(2,857)	(2,916)
Less current portion	(18,871)	(22,843)
Total long-term portion of debt, net	$ 219,326	216,908
Note payable at 8%, matures October 2027, as amended
Debt Instrument [Line Items]
Debt interest rate	8.00%
Total debt	$ 3,025	3,025
Note payable at 8%, matures May 2029
Debt Instrument [Line Items]
Debt interest rate	8.00%
Total debt	$ 7,846	9,180
Note payable at 5.99%, matures September 2033, as amended
Debt Instrument [Line Items]
Debt interest rate	5.99%
Total debt	$ 4,950	5,351
Note payable at 5.49%, matures June 2024, as amended
Debt Instrument [Line Items]
Debt interest rate	5.49%
Total debt	$ 0	1,937
Note payable at 5.25%, matures September 2031
Debt Instrument [Line Items]
Debt interest rate	5.25%
Total debt	$ 84,506	87,937
Notes payable at 12%, matures October 2026, as amended
Debt Instrument [Line Items]
Debt interest rate	12.00%
Total debt	$ 9,100	9,500
Notes payable at 12%, matures November 2027, as amended
Debt Instrument [Line Items]
Debt interest rate	12.00%
Total debt	$ 3,160	3,331
Notes payable at 12%, matures November 2027, as amended
Debt Instrument [Line Items]
Debt interest rate	12.00%
Total debt	$ 3,160	3,331
Note payable at 5.25%, matures October 2031
Debt Instrument [Line Items]
Debt interest rate	5.25%
Total debt	$ 1,099	1,136
Note payable at 6%, matures October 2031
Debt Instrument [Line Items]
Debt interest rate	6.00%
Total debt	$ 8,545	9,459
Note payable at 6% matures October 2041
Debt Instrument [Line Items]
Debt interest rate	6.00%
Total debt	$ 7,381	7,611
Note payable at 6% matures October 2041
Debt Instrument [Line Items]
Debt interest rate	6.00%
Total debt	$ 921	950
Note payable at 4% matures November 2028
Debt Instrument [Line Items]
Debt interest rate	4.00%
Total debt	$ 628	764
Note payable at 5.25% matures January 2032
Debt Instrument [Line Items]
Debt interest rate	5.25%
Total debt	$ 15,978	16,622
Note payable at 4.25% matures February 2043
Debt Instrument [Line Items]
Debt interest rate	4.25%
Total debt	$ 2,493	2,583
Note payable at 10% matures September 2026
Debt Instrument [Line Items]
Debt interest rate	10.00%
Total debt	$ 3,534	5,501
Note payable at 10% matures May 2032
Debt Instrument [Line Items]
Debt interest rate	10.00%
Total debt	$ 5,000	5,000
Note payable at 5%, paid in November 2023
Debt Instrument [Line Items]
Debt interest rate	5.00%
Total debt	$ 0	2,195
Note payable at 6% matures July 2029
Debt Instrument [Line Items]
Debt interest rate	6.00%
Total debt	$ 589	690
Note payable at 6% matures July 2032
Debt Instrument [Line Items]
Debt interest rate	6.00%
Total debt	$ 8,314	9,119
Note payable at 6% matures August 2032
Debt Instrument [Line Items]
Debt interest rate	6.00%
Total debt	$ 4,191	4,592
Note payable at 7.79% matures August 2039, as amended
Debt Instrument [Line Items]
Debt interest rate	7.79%
Total debt	$ 1,571	1,575
Note payable at 4.79% matures October 2042
Debt Instrument [Line Items]
Debt interest rate	4.79%
Total debt	$ 2,644	2,731
Note payable initially at 6% matures October 2024
Debt Instrument [Line Items]
Debt interest rate	6.00%
Total debt	$ 2,247	2,259
Note payable at 6% matures October 2037
Debt Instrument [Line Items]
Debt interest rate	6.00%
Total debt	$ 4,478	4,708
Note payable initially at 7.79% matures August 2039, as amended
Debt Instrument [Line Items]
Debt interest rate	7.79%
Total debt	$ 1,495	1,500
Note payable at 6.67% matures January 2028
Debt Instrument [Line Items]
Debt interest rate	6.67%
Total debt	$ 3,250	3,302
Notes payable at 7%, forgiven in September 2024
Debt Instrument [Line Items]
Debt interest rate	7.00%
Total debt	$ 0	1,801
Notes payable at 7% matures March 2033
Debt Instrument [Line Items]
Debt interest rate	7.00%
Total debt	$ 22,712	24,603
Note payable initially at 8.75% matures March 2025
Debt Instrument [Line Items]
Debt interest rate	8.75%
Total debt	$ 2,900	7,500
Note payable initially at 7.12% matures June 2028
Debt Instrument [Line Items]
Debt interest rate	7.12%
Total debt	$ 2,833	2,874
Note payable at 8.50% matures November 2033
Debt Instrument [Line Items]
Debt interest rate	8.50%
Total debt	$ 2,657	0
Note payable at 8.25% matures April 2034
Debt Instrument [Line Items]
Debt interest rate	8.25%
Total debt	$ 19,847	$ 0