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Share Capital, Option Plans and Share-Based Payments - Schedule of Outstanding Stock Options Activity (Details)
$ / shares in Units, $ in Thousands
 9 Months Ended
Mar. 31, 2017
USD ($)
$ / shares
shares
Options  
Outstanding at beginning of period (in shares) | shares 8,354,816
Granted (in shares) | shares 1,576,474
Exercised (in shares) | shares (832,968)
Forfeited or expired (in shares) | shares (133,914)
Outstanding at end of period (in shares) | shares 8,964,408
Exercisable ending balance (in shares) | shares 3,883,554
Weighted- Average Exercise Price  
Outstanding at beginning of period (in dollars per share) | $ / shares $ 21.94
Granted (in dollars per share) | $ / shares 31.34
Exercised (in dollars per share) | $ / shares 19.98
Forfeited or expired (in dollars per share) | $ / shares 25.00
Outstanding at end of period (in dollars per share) | $ / shares 23.73
Exercisable at end of period (in dollars per share) | $ / shares $ 19.00
Weighted- Average Remaining Contractual Term (years)  
Outstanding (in years) 4 years 3 months 7 days
Exercisable (in years) 2 years 9 months 18 days
Aggregate Intrinsic Value ($’000s)  
Outstanding | $ $ 92,191
Exercisable | $ $ 58,280