Share Capital, Option Plans And Share-Based Payments (Schedule Of Weighted-Average Fair Value Of Options And Weighted-Average Assumptions Used) (Details) (USD $)	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Weighted-average fair value of options granted (in dollars per share)	$ 14.30	$ 7.75
Expected volatility	32.00%	32.00%
Risk–free interest rate	1.51%	1.19%
Expected dividend yield	1.15%	1.80%
Expected life (in years)	4 years 4 months 2 days	4 years 4 months 10 days
Forfeiture rate (based on historical rates)	5.00%	5.00%
Average exercised share price (in dollars per share)	$ 56.33	$ 33.17