Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Sep. 30, 2024	Nov. 08, 2021
Debt Instrument [Line Items]
Debt interest rate			4.00%
Total debt	$ 238,192	$ 241,054
Less unamortized debt discount and issuance costs	(2,411)	(2,857)
Less current portion	(21,198)	(18,871)
Total long-term portion of debt, net	$ 214,583	219,326
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	$ 6,401	7,846
Note payable at 5.99%, matures September 2033, as amended
Debt Instrument [Line Items]
Debt interest rate	5.99%
Total debt	$ 4,521	4,950
Note payable at 5.25%, matures September 2031
Debt Instrument [Line Items]
Debt interest rate	5.25%
Total debt	$ 80,900	84,506
Notes payable at 12%, matures October 2026, as amended
Debt Instrument [Line Items]
Debt interest rate	12.00%
Total debt	$ 7,500	9,100
Notes payable at 12%, matures November 2027, as amended
Debt Instrument [Line Items]
Debt interest rate	12.00%
Total debt	$ 2,958	3,160
Notes payable at 12%, matures November 2027, as amended
Debt Instrument [Line Items]
Debt interest rate	12.00%
Total debt	$ 1,065	3,160
Note payable at 5.25%, matures October 2031
Debt Instrument [Line Items]
Debt interest rate	5.25%
Total debt	$ 1,060	1,099
Note payable at 6%, matures October 2031
Debt Instrument [Line Items]
Debt interest rate	6.00%
Total debt	$ 7,573	8,545
Note payable at 6% matures October 2041
Debt Instrument [Line Items]
Debt interest rate	6.00%
Total debt	$ 7,135	7,381
Note payable at 6% matures October 2041
Debt Instrument [Line Items]
Debt interest rate	6.00%
Total debt	$ 889	921
Note payable at 4% matures November 2028
Debt Instrument [Line Items]
Debt interest rate	4.00%
Total debt	$ 487	628
Note payable at 5.25% matures January 2032
Debt Instrument [Line Items]
Debt interest rate	5.25%
Total debt	$ 15,297	15,978
Note payable at 4.25% matures February 2043
Debt Instrument [Line Items]
Debt interest rate	4.25%
Total debt	$ 2,403	2,493
Note payable at 10% matures September 2026
Debt Instrument [Line Items]
Debt interest rate	10.00%
Total debt	$ 2,908	3,534
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 6% matures July 2029
Debt Instrument [Line Items]
Debt interest rate	6.00%
Total debt	$ 481	589
Note payable at 6% matures July 2032
Debt Instrument [Line Items]
Debt interest rate	6.00%
Total debt	$ 7,457	8,314
Note payable at 6% matures August 2032
Debt Instrument [Line Items]
Debt interest rate	6.00%
Total debt	$ 3,765	4,191
Note payable at 7.79% matures August 2039, as amended
Debt Instrument [Line Items]
Debt interest rate	7.79%
Total debt	$ 1,513	1,571
Note payable at 4.79% matures October 2042
Debt Instrument [Line Items]
Debt interest rate	4.79%
Total debt	$ 2,550	2,644
Note payable initially at 6% matured October 2024
Debt Instrument [Line Items]
Debt interest rate	6.00%
Total debt	$ 0	2,247
Note payable at 6% matures October 2037
Debt Instrument [Line Items]
Debt interest rate	6.00%
Total debt	$ 4,234	4,478
Note payable initially at 7.79% matures August 2039, as amended
Debt Instrument [Line Items]
Debt interest rate	7.79%
Total debt	$ 1,441	1,495
Note payable at 6.67% matures January 2028
Debt Instrument [Line Items]
Debt interest rate	6.67%
Total debt	$ 3,192	3,250
Notes payable at 7% matures March 2033
Debt Instrument [Line Items]
Debt interest rate	7.00%
Total debt	$ 20,685	22,712
Note payable initially at 8.75% matures March 2027
Debt Instrument [Line Items]
Debt interest rate	8.75%
Total debt	$ 3,450	2,900
Note payable initially at 7.12% matures June 2028
Debt Instrument [Line Items]
Debt interest rate	7.12%
Total debt	$ 2,788	2,833
Note payable at 8.50% matures November 2033
Debt Instrument [Line Items]
Debt interest rate	8.50%
Total debt	$ 5,210	2,657
Note payable at 8.25% matures April 2034
Debt Instrument [Line Items]
Debt interest rate	8.25%
Total debt	$ 19,447	19,847
Note payable at 6.99% matures October 2041
Debt Instrument [Line Items]
Debt interest rate	6.99%
Total debt	$ 5,336	0
Note payable at 8% matures January 2030
Debt Instrument [Line Items]
Debt interest rate	8.00%
Total debt	$ 4,718	0
Notes payable at 7% mature June 2030
Debt Instrument [Line Items]
Debt interest rate	7.00%
Total debt	$ 2,803	$ 0