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Share Capital, Option Plans and Share-Based Payments (Summary of Outstanding Stock Options Activity) (Details)
$ / shares in Units, $ in Thousands
 9 Months Ended
Mar. 31, 2016
USD ($)
$ / shares
shares
Options  
Options outstanding beginning balance (in shares) | shares 4,375,365
Options granted (in shares) | shares 585,140
Options exercised (in shares) | shares (324,702)
Options forfeited or expired (in shares) | shares (421,363)
Options outstanding ending balance (in shares) | shares 4,214,440
Options exercisable ending balance (in shares) | shares 1,605,470
Weighted- Average Exercise Price  
Options outstanding beginning balance, weighted-average exercise price (in dollars per share) | $ / shares $ 42.26
Options granted, weighted average exercise price (in dollars per share) | $ / shares 46.13
Options exercised, weighted-average exercise price (in dollars per share) | $ / shares 25.57
Options forfeited or expired, weighted-average exercise price (in dollars per share) | $ / shares 48.87
Options outstanding ending balance, weighted-average exercise price (in dollars per share) | $ / shares 43.42
Options exercisable, weighted average exercise price (in dollars per share) | $ / shares $ 37.13
Options outstanding, weighted-average remaining contractual term (in years) 4 years 7 months 33 days
Options exercisable, weighted-average remaining contractual term (in years) 3 years 7 months 10 days
Options outstanding, aggregate intrinsic value | $ $ 38,565
Options exercisable, aggregate intrinsic value | $ $ 24,015