LEASES - Recognized Right-of-Use Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Oct. 01, 2019	Sep. 30, 2019
Lessee, Lease, Description [Line Items]
Right-of-use assets	$ 47,534	$ 56,071	$ 0
Properties
Lessee, Lease, Description [Line Items]
Right-of-use assets	44,413	52,188
Equipment
Lessee, Lease, Description [Line Items]
Right-of-use assets	2,606	3,652
Other
Lessee, Lease, Description [Line Items]
Right-of-use assets	$ 515	$ 231