LEASES - Supplemental cash flow information (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Cash flows included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 3,123	$ 3,299
Operating cash flows from finance leases	89	23
Financing cash flows from finance leases	117	36
Non-cash lease activity:
ROU assets obtained in exchange for new operating lease liabilities	11,775	3,191
ROU assets obtained in exchange for new finance lease liabilities	$ 0	$ 105