Share Capital, Option Plans And Share-Based Payments (Schedule Of Weighted-Average Fair Value Of Options And Weighted-Average Assumptions Used) (Details) (USD $)	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Weighted-average fair value of options granted (in dollars per share)	$ 11.55	$ 8.39	$ 9.70
Expected volatility	32.00%	37.00%	41.00%
Risk–free interest rate	1.34%	0.66%	0.69%
Expected dividend yield	1.32%	0.31%	0.00%
Expected life (in years)	4 years 4 months 10 days	4 years 4 months 6 days	4 years 7 months 13 days
Forfeiture rate (based on historical rates)	5.00%	5.00%	5.00%
Average exercised share price (in dollars per share)	$ 46.52	$ 28.15	$ 24.90