XML 85 R63.htm IDEA: XBRL DOCUMENT v2.4.0.6
Pension Plans And Other Post Retirement Benefits (Schedule Of Weighted-Average Key Assumptions Used For CDT Pension Plan) (Details) (CDT Pension Plan [Member])
 3 Months Ended 12 Months Ended
Sep. 30, 2012
Jun. 30, 2012
Defined Benefit Plan Disclosure [Line Items]    
Salary increases 2.50% 2.50%
Pension increases 2.00% 2.00%
Discount rate 3.80% 4.00%
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%