LEASES - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Operating cash flows for operating leases	$ 8,385
Operating cash flows for financing leases	397
Financing cash flows for financing leases	404	$ 0
Total	$ 9,186