EMPLOYEE BENEFIT PLANS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Retirement Benefits [Abstract]
Interest cost	$ 911	$ 745	$ 1,707	$ 1,489
Expected return on plan assets	(2,835)	(2,545)	(5,424)	(5,089)
Amortization:
Recognized actuarial loss	845	1,573	1,690	3,146
Net periodic expense (income)	$ (1,079)	$ (227)	$ (2,027)	$ (454)