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Share Capital, Option Plans And Share-Based Payments (Schedule Of Weighted-Average Fair Value Of Options And Weighted-Average Assumptions Used) (Details) - $ / shares		12 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Weighted-average fair value of options granted (in dollars per share)		$ 13.46	$ 11.55	$ 8.39
Expected volatility		32.00%	32.00%	37.00%
Risk–free interest rate		1.41%	1.34%	0.66%
Expected dividend yield		1.23%	1.32%	0.31%
Expected life (in years)		4 years 3 months 29 days	4 years 4 months 10 days	4 years 4 months 6 days
Forfeiture rate (based on historical rates)		5.00%	5.00%	5.00%
Average exercised share price (in dollars per share)		$ 54.33	$ 46.52	$ 28.15
Monte Carlo Valuation Method [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period	[1]	2 years 26 days
[1] Options valued using Monte Carlo Valuation Method

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Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Forfeiture Rate

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Weighted average expected volatility rate of share-based compensation awards.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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