LEASES - Summary of Future Maturities of Lease Payments for Operating Leases (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Sep. 30, 2021
Operating Leases
2022	$ 20,230
2023	34,959
2024	26,530
2025	23,775
2026	15,566
2027	11,677
Thereafter	54,552
Total lease payments	187,289
Less: Imputed Interest	(32,591)
Present value of lease liabilities	154,698	$ 149,196
Finance Leases
2022	1,541
2023	2,893
2024	2,322
2025	2,128
2026	2,106
2027	2,074
Thereafter	5,703
Total lease payments	18,767
Less: Imputed Interest	(3,419)
Present value of lease liabilities	$ 15,348	$ 16,467