PENSION PLANS AND OTHER POST-RETIREMENT BENEFITS - Schedule of Defined Benefit Plans Disclosures (Details) - Pension Plan - USD ($) $ in Thousands	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 242,447	$ 237,823	$ 217,324
Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	216,226	211,899
Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	24,697	19,457
Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,524	6,467
Cash
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3,561	2,041
Cash \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3,561	2,041
Cash \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Cash \| Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Debt funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	102,908	100,159
Debt funds \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	83,456	91,908
Debt funds \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	19,452	8,251
Debt funds \| Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Equity funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	105,428	101,403
Equity funds \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	104,961	94,844
Equity funds \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	467	6,559
Equity funds \| Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Real estate funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6,429	9,409
Real estate funds \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6,348	5,014
Real estate funds \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	81	73
Real estate funds \| Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	4,322
Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	24,121	24,811
Other \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	17,900	18,092
Other \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4,697	4,574
Other \| Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 1,524	$ 2,145