LEASES - Reconciliation of future undiscounted cash flows to the operating and finance lease liabilities, and the related ROU assets (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Operating leases
2024 (excluding the six months ended March 31, 2024)	$ 3,389
2025	6,014
2026	4,729
2027	4,479
2028 and thereafter	33,206
Total minimum lease payments	51,817
Less: amounts representing interest	11,540
Present value of net minimum lease payments	40,277
Less: current portion of lease obligations	4,833
Non-current portion of lease obligations	35,444	$ 36,554
ROU assets	$ 38,322	$ 39,839
Location of operating lease liabilities included on Consolidated Balance Sheets	Accrued other expenses, Other liabilities
Location of operating lease ROU assets included on Consolidated Balance Sheets	ROU assets
Finance leases
2024 (excluding the six months ended March 31, 2024)	$ 1,090
2025	2,233
2026	2,297
2027	2,357
2028 and thereafter	16,470
Total minimum lease payments	24,447
Less: amounts representing interest	5,795
Present value of net minimum lease payments	18,652
Less: current portion of lease obligations	1,375
Non-current portion of lease obligations	17,277
ROU assets	$ 14,427
Location of finance lease liabilities included on Consolidated Balance Sheets	Accrued other expenses, Other liabilities

Finance Lease Liability To Be Paid Year five And Thereafter Finance Lease, Liability, to be Paid, Year five and Thereafter Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid for fourth fiscal year and thereafter following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

No definition available.