PENSION PLANS AND OTHER POST-RETIREMENT BENEFITS - Components of Net Pension Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Net pension expense			$ 6,383	$ 3,444
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 2,828	$ 1,048	5,553	2,107
Interest cost	3,122	1,032	6,211	2,002
Expected return of plan assets	(2,903)	(431)	(5,711)	(834)
Amortization of actuarial (gains) losses	165	62	330	125
Net pension expense	$ 3,212	$ 1,711	$ 6,383	$ 3,400