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SHARE CAPITAL, OPTION PLANS AND SHARE-BASED PAYMENTS - Schedule of Weighted-Average Fair Value Of Options And Weighted-Average Assumptions Used (Details) - Stock options - $ / shares
3 Months Ended 6 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted-average fair value of options granted (in dollars per share) $ 9.73 $ 7.33 $ 9.74 $ 8.38
Weighted-average assumptions used:        
Expected volatility 26.66% 26.64% 26.63% 26.18%
Risk–free interest rate 0.90% 0.26% 0.64% 0.20%
Expected dividend yield 1.63% 1.75% 1.58% 1.54%
Expected life (in years) 4 years 1 month 17 days 4 years 1 month 24 days 4 years 1 month 24 days 4 years 7 months 28 days
Forfeiture rate (based on historical rates) 7.00% 7.00% 7.00% 7.00%
Average exercised share price (in dollars per share) $ 51.61 $ 41.44 $ 52.35 $ 45.36