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Pension Plans And Other Post Retirement Benefits (Schedule Of Weighted-Average Key Assumptions Used For CDT Pension Plan) (Details) (CDT Pension Plan [Member]) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2012 | Jun. 30, 2011
Defined Benefit Plan Disclosure [Line Items] |  |
Salary increases | 2.25% | 2.25%
Pension increases | 1.75% | 1.50%
Discount rate | 4.30% | 5.25%
To Age 30 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Employee fluctuation rate | 1.00% | 1.00%
To Age 35 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Employee fluctuation rate | 0.50% | 0.50%
To Age 40 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Employee fluctuation rate | 0.00% | 0.00%
To Age 45 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Employee fluctuation rate | 0.50% | 0.50%
To Age 50 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Employee fluctuation rate | 0.50% | 0.50%
From Age 51 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Employee fluctuation rate | 1.00% | 1.00%

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- Definition Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Pension Increase + References No definition available. + Details
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- Definition The interest rate used to adjust for the time value of money for the plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph j -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(1) -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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- Definition Expected rate of compensation increases (for pay-related plans). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph j -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 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(2) -URI http://asc.fasb.org/extlink&oid=6962843&loc=d3e1928-114920 + Details
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