EMPLOYEE BENEFIT PLANS (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Retirement Benefits [Abstract]
Interest cost	$ 943	$ 745	$ 2,650	$ 2,234
Expected return on plan assets	(2,905)	(2,544)	(8,329)	(7,633)
Amortization:
Recognized actuarial loss	844	1,573	2,534	4,719
Net periodic expense (income)	$ (1,118)	$ (226)	$ (3,145)	$ (680)