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EQUITY AND SHARE-BASED COMPENSATION - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 12 Months Ended |
--- | --- | --- | ---
Aug. 06, 2025 | Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2024 | Feb. 10, 2026
Cash Dividends |  |  |  |  |
Dividends declared per common share (in dollars per share) |  | $ 1.10 | $ 1.05 | $ 1.00 |
Payments of dividends |  | $ 268,357 | $ 271,523 | $ 267,362 |
Share Capital |  |  |  |  |
Preference shares issued (in shares) |  | 0 |  |  |
Treasury Stock |  |  |  |  |
Purchase of treasury stock (in shares) |  | 2,400,492 | 4,619,276 | 1,400,000 |
Purchase of treasury stock, including settlement amount, inclusive of tax |  | $ 56,200 | $ 133,100 | $ 53,100 |
Issuance of treasury shares (in shares) |  | 2,297,271 | 3,107,220 | 1,800,395 |
Issuance of treasury stock |  | $ 70,500 | $ 118,200 | $ 81,400 |
Stock Repurchase Plan |  |  |  |  |
Stock repurchased and retired (in shares) |  |  | 14,524,664 | 5,073,913 |
Stock repurchased and retired, net of excise tax |  |  | $ 418,300 | $ 152,300 |
Stock repurchased and retired |  | 401,088 | 442,590 | 152,333 |
Accrual amount |  | $ 10,600 | 24,800 | 0 |
Performance options granted (in shares) |  | 2,001,322 |  |  |
Aggregate intrinsic value of options exercised |  | $ 5,400 | 400 | 7,000 |
Cash proceeds from exercise of options granted |  | 27,300 | 3,700 | 31,400 |
Tax benefit realized from exercise of options |  | $ 1,400 | $ 100 | $ 1,500 |
Twenty Twenty Six Share Repurchase Plan |  |  |  |  |
Stock Repurchase Plan |  |  |  |  |
Stock repurchase plan, period in force (in months) | 12 months |  |  |  |
Stock repurchase plan, authorized amount | $ 300,000 |  |  |  | $ 500,000
Stock repurchase plan, authorized amount, increase (decrease) |  |  |  |  | $ 200,000
Stock repurchased and retired (in shares) |  | 14,761,123 |  |  |
Stock repurchased and retired, net of excise tax |  | $ 415,700 |  |  |
Employee stock option |  |  |  |  |
Stock Repurchase Plan |  |  |  |  |
Weighted-average fair value of options granted (in dollars per share) |  | $ 6.36 | $ 5.80 | $ 9.00 |
Expiration period of options, term (in years) |  | 7 years |  |  |
Deferred Share Units (DSUs) |  |  |  |  |
Stock Repurchase Plan |  |  |  |  |
Options granted (in shares) |  | 120,990 |  |  |
Shares issued (in shares) |  | 233,992 | 296,831 | 0 |
Value of shares issued |  | $ 6,200 | $ 7,600 | $ 0 |
PSUs |  |  |  |  |
Stock Repurchase Plan |  |  |  |  |
Weighted-average fair value of options granted (in dollars per share) |  |  |  | $ 40.14 |
Options granted (in shares) |  | 0 | 0 |  |
Restricted Stock Units (RSUs) |  |  |  |  |
Stock Repurchase Plan |  |  |  |  |
Options granted (in shares) |  | 945,505 |  |  |
Minimum | Employee stock option |  |  |  |  |
Stock Repurchase Plan |  |  |  |  |
Award vesting period (in years) |  | 4 years |  |  |
Minimum | Restricted Stock Units (RSUs) |  |  |  |  |
Stock Repurchase Plan |  |  |  |  |
Award vesting period (in years) |  | 2 years |  |  |
Maximum | Restricted Stock Units (RSUs) |  |  |  |  |
Stock Repurchase Plan |  |  |  |  |
Award vesting period (in years) |  | 4 years |  |  |
Long Term Incentive Plan |  |  |  |  |
Treasury Stock |  |  |  |  |
Issuance of treasury stock (in shares) |  | 825,551 |  |  |
Stock Repurchase Plan |  |  |  |  |
Award vesting period (in years) |  | 3 years |  |  |
Long Term Incentive Plan | PSUs |  |  |  |  |
Stock Repurchase Plan |  |  |  |  |
Options granted (in shares) |  | 1,041,815 |  |  |
Award vesting period (in years) |  | 3 years |  |  |
Long Term Incentive Plan | Restricted Stock Units (RSUs) |  |  |  |  |
Stock Repurchase Plan |  |  |  |  |
Options granted (in shares) |  | 839,657 |  |  |
Award vesting period (in years) |  | 3 years |  |  |

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