PENSION PLANS AND OTHER POST-RETIREMENT BENEFITS - Schedule of the Change in Benefit Obligation (Details) - Pension Plan - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation—beginning of fiscal year	$ 349,427	$ 339,179
Service cost	11,082	11,073	$ 6,921
Interest cost	13,008	12,345	7,091
Benefits paid	(11,161)	(3,204)
Company contributions	0	(3,849)
Employee contributions	1,703	2,007
Plan settlement	(7,440)	(7,089)
Plan amendment	(2,948)	1,501
Curtailment (gain) loss	(927)	0
Net transfers	0	(228)
Actuarial (gain) loss	(1,273)	3,412
Other events	(762)	0
Foreign exchange (gain) loss	23,981	(5,720)
Benefit obligation—end of period	374,690	349,427	339,179
Benefit obligation	374,690	349,427	$ 339,179
Less: Current portion	4,652	4,848
Non-current portion of benefit obligation	$ 370,038	$ 344,579

Defined Benefit Plan, Benefit Obligation, Contributions Employer

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Amount of liability, recognized in statement of financial position, for defined benefit pension plan, classified as current. Excludes other postretirement benefit plan.

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Amount of liability, recognized in statement of financial position, for defined benefit pension plan, classified as noncurrent. Excludes other postretirement benefit plan.

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Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan.

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Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.

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Amount of contributions received by defined benefit plan from participant which increase benefit obligation.

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Amount of payment, which decreases benefit obligation of defined benefit plan, for irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Transaction constituting settlement includes, but is not limited to, making lump-sum cash payment to participant in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contract. Excludes decreases to benefit obligation for remeasurement due to settlement.

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Amount of increase in benefit obligation of defined benefit plan from business combination.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of (increase) decrease in benefit obligation of defined benefit plan from event reducing expected years of future service of present employees or eliminating accrual of benefits for some or all future services of present employees.

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Amount of foreign currency translation gain (loss) which (increases) decreases benefit obligation of defined benefit plan.

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Amount of cost recognized for passage of time related to defined benefit plan.

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Amount of increase (decrease) in benefit obligation of defined benefit plan from change in terms of existing plan or initiation of new plan.

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