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Share Capital, Option Plans And Share-Based Payments (Summary Of Stock Options Outstanding) (Details) (USD $) | 12 Months Ended |
--- | --- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2010
Number of options outstanding (in shares) | 2,147,151 | 2,277,733 | 2,669,142
Weighted average remaining contractual life | 4 years 4 months 2 days | 2 years 9 months |
Weighted average exercise price, options outstanding (in dollars per share) | $ 40.07 | $ 24.51 | $ 23.55
Number of options exercisable (in shares) | 960,151 | 1,701,308 |
Weighted average exercise price, options exercisable (in dollars per share) | $ 25.92 | $ 19.80 |
$13.10 - $14.94 [Member] |  |  |
Exercise price range, lower limit (in dollars per share) | $ 13.10 |  |
Exercise price range, upper limit (in dollars per share) | $ 14.94 |  |
Number of options outstanding (in shares) | 274,500 |  |
Weighted average remaining contractual life | 10 months 10 days |  |
Weighted average exercise price, options outstanding (in dollars per share) | $ 13.97 |  |
Number of options exercisable (in shares) | 274,500 |  |
Weighted average exercise price, options exercisable (in dollars per share) | $ 13.97 |  |
$14.95 - $27.70 [Member] |  |  |
Exercise price range, lower limit (in dollars per share) | $ 14.95 |  |
Exercise price range, upper limit (in dollars per share) | $ 27.70 |  |
Number of options outstanding (in shares) | 302,395 |  |
Weighted average remaining contractual life | 2 years 3 months 16 days |  |
Weighted average exercise price, options outstanding (in dollars per share) | $ 22.68 |  |
Number of options exercisable (in shares) | 302,395 |  |
Weighted average exercise price, options exercisable (in dollars per share) | $ 22.68 |  |
$27.71 - $34.75 [Member] |  |  |
Exercise price range, lower limit (in dollars per share) | $ 27.71 |  |
Exercise price range, upper limit (in dollars per share) | $ 34.75 |  |
Number of options outstanding (in shares) | 315,831 |  |
Weighted average remaining contractual life | 2 years 9 months 16 days |  |
Weighted average exercise price, options outstanding (in dollars per share) | $ 32.73 |  |
Number of options exercisable (in shares) | 233,581 |  |
Weighted average exercise price, options exercisable (in dollars per share) | $ 32.86 |  |
$34.76 - $43.51 [Member] |  |  |
Exercise price range, lower limit (in dollars per share) | $ 34.76 |  |
Exercise price range, upper limit (in dollars per share) | $ 43.51 |  |
Number of options outstanding (in shares) | 266,175 |  |
Weighted average remaining contractual life | 4 years 3 months 24 days |  |
Weighted average exercise price, options outstanding (in dollars per share) | $ 40.85 |  |
Number of options exercisable (in shares) | 109,925 |  |
Weighted average exercise price, options exercisable (in dollars per share) | $ 41.05 |  |
$43.52 - $52.15 [Member] |  |  |
Exercise price range, lower limit (in dollars per share) | $ 43.52 |  |
Exercise price range, upper limit (in dollars per share) | $ 52.15 |  |
Number of options outstanding (in shares) | 305,500 |  |
Weighted average remaining contractual life | 6 years 13 days |  |
Weighted average exercise price, options outstanding (in dollars per share) | $ 48.63 |  |
Number of options exercisable (in shares) | 30,500 |  |
Weighted average exercise price, options exercisable (in dollars per share) | $ 48.39 |  |
$52.16 - $56.25 [Member] |  |  |
Exercise price range, lower limit (in dollars per share) | $ 52.16 |  |
Exercise price range, upper limit (in dollars per share) | $ 56.25 |  |
Number of options outstanding (in shares) | 256,500 |  |
Weighted average remaining contractual life | 6 years 8 months 6 days |  |
Weighted average exercise price, options outstanding (in dollars per share) | $ 52.82 |  |
Number of options exercisable (in shares) | 6,750 |  |
Weighted average exercise price, options exercisable (in dollars per share) | $ 56.25 |  |
$56.26 - $61.63 [Member] |  |  |
Exercise price range, lower limit (in dollars per share) | $ 56.26 |  |
Exercise price range, upper limit (in dollars per share) | $ 61.63 |  |
Number of options outstanding (in shares) | 426,250 |  |
Weighted average remaining contractual life | 6 years 6 months 24 days |  |
Weighted average exercise price, options outstanding (in dollars per share) | $ 60.37 |  |
Number of options exercisable (in shares) | 2,500 |  |
Weighted average exercise price, options exercisable (in dollars per share) | $ 61.63 |  |
$13.10 - $61.63 [Member] |  |  |
Exercise price range, lower limit (in dollars per share) | $ 13.10 |  |
Exercise price range, upper limit (in dollars per share) | $ 61.63 |  |
Number of options outstanding (in shares) | 2,147,151 |  |
Weighted average remaining contractual life | 4 years 4 months 2 days |  |
Weighted average exercise price, options outstanding (in dollars per share) | $ 40.07 |  |
Number of options exercisable (in shares) | 960,151 |  |
Weighted average exercise price, options exercisable (in dollars per share) | $ 25.92 |  |

X
- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(c), d(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(c) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(b) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(a) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(a) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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