LEASES - Summary of Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Sep. 30, 2022
Operating Leases:
Operating right-of-use assets	$ 174,187	$ 183,398
Lease Liabilities:
Current portion of operating lease liabilities	29,637	31,680
Long-term operating lease liabilities	154,608	159,414
Total operating lease liabilities	184,245	191,094
Finance Leases:
Property, plant and equipment, net	$ 12,340	$ 13,696
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	PROPERTY, PLANT AND EQUIPMENT, net	PROPERTY, PLANT AND EQUIPMENT, net
Lease Liabilities:
Notes payable and current portion of long-term debt	$ 1,824	$ 2,065
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Notes payable and current portion of long-term debt	Notes payable and current portion of long-term debt
Long-term debt, net	$ 10,841	$ 11,995
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Long-Term Debt, Excluding Current Maturities	Long-Term Debt, Excluding Current Maturities
Total financing lease liabilities	$ 12,665	$ 14,060
Accumulated depreciation	$ 6,528	$ 4,972