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Share Capital, Option Plans and Share-Based Payments (Summary of Outstanding Stock Options Activity) (Details)
$ / shares in Units, $ in Thousands
 6 Months Ended
Dec. 31, 2015
USD ($)
$ / shares
shares
Options  
Options outstanding beginning balance (in shares) | shares 4,375,365
Options granted (in shares) | shares 388,460
Options exercised (in shares) | shares (233,350)
Options forfeited or expired (in shares) | shares (273,125)
Options outstanding ending balance (in shares) | shares 4,257,350
Options exercisable ending balance (in shares) | shares 1,292,802
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 45.69
Options exercised, weighted-average exercise price (in dollars per share) | $ / shares 26.90
Options forfeited or expired, weighted-average exercise price (in dollars per share) | $ / shares 48.23
Options outstanding ending balance, weighted-average exercise price (in dollars per share) | $ / shares 43.03
Options exercisable, weighted average exercise price (in dollars per share) | $ / shares $ 35.01
Options outstanding, weighted-average remaining contractual term (in years) 4 years 9 months 16 days
Options exercisable, weighted-average remaining contractual term (in years) 3 years 7 months 15 days
Options outstanding, aggregate intrinsic value | $ $ 31,202
Options exercisable, aggregate intrinsic value | $ $ 18,227