LEASES - SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating cash flows from operating leases	$ 1,737	$ 1,562
Operating cash flows from finance leases	2,176	443
Financing cash flows from finance leases	$ 5,997	$ 2,623