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SHARE CAPITAL, OPTION PLANS AND SHARE-BASED PAYMENTS (Tables)
12 Months Ended
Jun. 30, 2021
Share-based Payment Arrangement [Abstract]  
Summary of Share-based Compensation Costs
Total share-based compensation expense for the periods indicated below is detailed as follows: 
 Year Ended June 30,
 202120202019
Stock options$15,639 $9,779 $10,232 
Performance Share Units (issued under LTIP)9,898 5,997 3,461 
Restricted Share Units (issued under LTIP)7,358 5,943 5,917 
Restricted Share Units (other)10,561 174 175 
Deferred Share Units (directors)3,396 3,345 3,133 
Employee Stock Purchase Plan5,117 4,294 3,852 
Total share-based compensation expense$51,969 $29,532 $26,770 
Summary of Stock Options Outstanding Under Various Stock Option Plans
A summary of stock options outstanding under our 2004 Stock Option Plan is set forth below. All numbers shown in the chart below have been adjusted, where applicable, to account for the two-for-one stock splits that occurred on October 22, 2003, February 18, 2014 and January 24, 2017.
2004 Stock Option Plan
Date of inceptionOct-04
EligibilityEligible employees, as determined by the Board of Directors
Options granted to date38,348,857
Options exercised to date(20,798,129)
Options cancelled to date(9,437,154)
Options outstanding8,113,574
Termination grace periods
Immediately “for cause”; 90 days for any other reason; 180 days due to death
Vesting schedule
25% per year, unless otherwise specified
Exercise price range
$22.68 - $48.74
Expiration dates
8/1/2021 - 5/10/2028
Summary of Information Regarding Stock Options Outstanding
The following table summarizes information regarding stock options outstanding at June 30, 2021:
Options OutstandingOptions Exercisable
Range of Exercise PricesNumber of options Outstanding as of June 30, 2021Weighted
Average
Remaining
Contractual
Life (years)
Weighted
Average
Exercise
Price
Number of options
Exercisable as of
June 30, 2021
Weighted
Average
Exercise
Price
 
$22.68 $33.06 1,102,966 2.38$30.61 943,933 $30.27 
33.07 34.60 712,037 3.1434.16 507,976 34.09 
34.61 38.30 874,882 4.9036.72 358,255 36.10 
38.31 39.02 634,760 5.1038.76 144,703 38.76 
39.03 39.98 704,352 4.2139.34 312,972 39.34 
39.99 43.22 821,355 5.3540.74 176,519 40.46 
43.23 45.40 538,625 5.6044.99 123,125 44.99 
45.41 46.88 2,382,097 6.1145.81 — — 
46.89 48.34 200,000 6.8647.94 — — 
48.35 48.74 142,500 6.6148.74 — — 
$22.68 $48.74 8,113,574 4.88$40.16 2,567,483 $34.83 
Summary of Option Activity
A summary of activity under our stock option plans for the year ended June 30, 2021 and 2020 are as follows:
OptionsWeighted-
Average Exercise
Price
Weighted-
Average
Remaining
Contractual Term
(years)
Aggregate Intrinsic Value
($’000's)
Outstanding at June 30, 20207,429,537 $36.18 4.78$49,574 
Granted3,208,209 45.77 
Exercised(1,605,134)30.88 
Forfeited or expired(919,038)43.75 
Outstanding at June 30, 20218,113,574 $40.16 4.88$86,297 
Exercisable at June 30, 20212,567,483 $34.83 3.47$41,005 
Schedule of Weighted-Average Fair Value of Options and Weighted-Average Assumptions Used
For the periods indicated, the weighted-average fair value of options and weighted-average assumptions estimated under the Black-Scholes option-pricing model were as follows:
 Year Ended June 30,
 202120202019
Weighted–average fair value of options granted$8.45 $6.88 $8.39 
Weighted-average assumptions used:
Expected volatility26.26 %22.63 %25.72 %
Risk–free interest rate0.24 %1.30 %2.57 %
Expected dividend yield1.55 %1.64 %1.54 %
Expected life (in years)4.594.124.44
Forfeiture rate (based on historical rates)%%%
Average exercise share price$45.76 $41.81 $38.81 
For the periods in which performance options were granted, as indicated, the weighted-average fair value of performance options and weighted-average assumptions estimated under the Monte Carlo pricing model were as follows:
Year Ended June 30,
 2021
Weighted–average fair value of options granted$10.18 
Derived service period (in years)1.80
Weighted-average assumptions used:
Expected volatility28.00 %
Risk–free interest rate0.42 %
Expected dividend yield1.70 %
Average exercise share price$45.81 
During the year ended June 30, 2021, we granted 750,000 performance options, which are included in the summary of stock option plan activity above. There were no performance options granted during the year ended June 30, 2020 and 2019, respectively.