EQUITY AND SHARE-BASED COMPENSATION - Schedule of Weighted-Average Fair Value Of Options And Weighted-Average Assumptions Used (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Employee stock option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value of options granted (in dollars per share)	$ 5.80	$ 9.00	$ 6.75
Weighted-average assumptions used:
Expected volatility	28.96%	30.46%	28.73%
Risk–free interest rate	3.81%	4.44%	3.98%
Expected dividend yield	3.60%	2.73%	3.07%
Expected life (in years)	4 years 3 months 25 days	4 years 3 months 3 days	4 years 2 months 12 days
Forfeiture rate (based on historical rates)	7.00%	7.00%	7.00%
Average exercised share price (in dollars per share)	$ 26.81	$ 36.55	$ 31.13
Performance stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value of options granted (in dollars per share)	$ 0	$ 0	$ 8.09
Derived service period (in years)	0 years	0 years	1 year 8 months 12 days
Weighted-average assumptions used:
Expected volatility	0.00%	0.00%	26.00%
Risk–free interest rate	0.00%	0.00%	3.21%
Expected dividend yield	0.00%	0.00%	2.00%
Average exercised share price (in dollars per share)	$ 0	$ 0	$ 31.89
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value of options granted (in dollars per share)		$ 40.14
Weighted-average assumptions used:
Expected volatility	30.26%	28.05%	29.00%
Expected dividend yield	0.00%	0.00%	0.00%
Expected life (in years)	3 years 1 month 9 days	3 years	3 years 1 month 9 days
Forfeiture rate (based on historical rates)	7.00%	7.00%	7.00%
Average exercised share price (in dollars per share)	$ 75.14	$ 0	$ 41.75
Aggregate intrinsic value of performance share units vested ($ in ‘000’s)	$ 8,020	$ 0	$ 6,216
PSUs \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value of instruments other than options granted (in dollars per share)	$ 47.96	$ 21.17	$ 43.10
Weighted-average assumptions used:
Risk–free interest rate	3.67%	4.38%	3.13%
PSUs \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value of instruments other than options granted (in dollars per share)		$ 59.48	$ 55.06
Weighted-average assumptions used:
Risk–free interest rate		4.95%	3.39%
PSUs \| Long Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value of instruments other than options granted (in dollars per share)	$ 46.58
Restricted Share Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value of instruments other than options granted (in dollars per share)	27.37	$ 38.04	$ 30.46
Weighted-average fair value of restricted share units vested (in dollars per share)	$ 35.63	$ 40.94	$ 36.33
Weighted-average assumptions used:
Aggregate intrinsic value of performance share units vested ($ in ‘000’s)	$ 69,891	$ 62,821	$ 15,755
Restricted Share Units (RSUs) \| Long Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value of instruments other than options granted (in dollars per share)	$ 28.43	$ 35.07	$ 38.82
Weighted-average fair value of restricted share units vested (in dollars per share)	$ 49.92	$ 43.40	$ 36.83
Weighted-average assumptions used:
Aggregate intrinsic value of performance share units vested ($ in ‘000’s)	$ 5,111	$ 9,093	$ 3,947
Deferred Share Units (DSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value of instruments other than options granted (in dollars per share)	$ 31.03	$ 38.43	$ 29.72
Weighted-average fair value of restricted share units vested (in dollars per share)	$ 34.21	$ 36.81	$ 32.44
Weighted-average assumptions used:
Aggregate intrinsic value of performance share units vested ($ in ‘000’s)	$ 3,194	$ 1,461	$ 1,565

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Derived Service Period

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Intrinsic value of vested award under share-based payment arrangement. Excludes share and unit options.

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Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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