Share Capital, Option Plans And Share-Based Payments Share Capital, Option Plans And Share-Based Payments (Schedule of Long Term Incentive Plan Expense) (Details) (USD $)	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Unvested stock awards compensation cost, weighted average recognition period	3 years
Long Term Incentive Plan
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Expected share-based compensation expense	$ 38,590,000
Allocated share-based compensation expense	1,334,000	2,772,000
Compensation cost recognized to date	20,700,000
Compensation cost not yet recognized	17,900,000
Unvested stock awards compensation cost, weighted average recognition period	2 years 3 months 18 days
Employee Share Purchase Plan [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Cash received from employee stock purchase plan	800,000	700,000
Performance Stock Units (PSUs) [Member] | Fiscal 2013 LTIP
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Expected share-based compensation expense	6,489,000
Allocated share-based compensation expense	0	215,000
Performance Stock Units (PSUs) [Member] | Fiscal 2014 LTIP
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Expected share-based compensation expense	7,838,000
Allocated share-based compensation expense	420,000	1,370,000
Performance Stock Units (PSUs) [Member] | Fiscal 2015 LTIP
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Expected share-based compensation expense	2,313,000
Allocated share-based compensation expense	(1,000)	583,000
Performance Stock Units (PSUs) [Member] | Fiscal 2016 LTIP
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Expected share-based compensation expense	1,638,000
Allocated share-based compensation expense	85,000	0
Performance Stock Units (PSUs) [Member] | Fiscal 2017 LTIP
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Expected share-based compensation expense	3,701,000
Allocated share-based compensation expense	87,000	0
Restricted Stock Units (RSUs) [Member] | Fiscal 2015 LTIP
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Expected share-based compensation expense	3,804,000
Allocated share-based compensation expense	211,000	604,000
Restricted Stock Units (RSUs) [Member] | Fiscal 2016 LTIP
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Expected share-based compensation expense	4,162,000
Allocated share-based compensation expense	329,000	0
Restricted Stock Units (RSUs) [Member] | Fiscal 2017 LTIP
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Expected share-based compensation expense	8,645,000
Allocated share-based compensation expense	$ 203,000	$ 0