EMPLOYEE BENEFIT PLANS - Schedule of Defined Benefit Pension Income Included in Other Income (Expense ) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Retirement Benefits [Abstract]
Interest cost	$ 1,359	$ 1,605
Expected return on plan assets	(2,197)	(2,542)
Amortization:
Recognized actuarial loss	701	636
Net periodic benefit	$ (137)	$ (301)