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Share Capital, Option Plans And Share-Based Payments (Share-Based Payments) (Details) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]    
Share-based compensation expense $ 6,533 $ 4,449
Stock Options [Member]    
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]    
Share-based compensation expense 3,664 2,569
Deferred Stock Units (Directors) [Member]    
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]    
Share-based compensation expense 634 471
Long Term Incentive Plan [Member] | Performance Stock Units (PSUs) [Member]    
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]    
Share-based compensation expense 620 591
Long Term Incentive Plan [Member] | Restricted Stock Units [Member]    
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]    
Share-based compensation expense 1,234 743
Other plans [Member] | Restricted Stock Units [Member]    
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]    
Share-based compensation expense $ 381 $ 75