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Pension Plans And Other Post Retirement Benefits (Schedule Of CDT Defined Benefit Plan And CDT Long-Term Employee Benefit Obligation) (Details) (USD $)
In Thousands
Sep. 30, 2011
Jun. 30, 2011
Defined Benefit Plan Disclosure [Line Items]  
Noncurrent portion of benefit obligation$ 18,171$ 18,478
CDT Defined Benefit Plan [Member]
  
Defined Benefit Plan Disclosure [Line Items]  
Total benefit obligation18,04518,231
Current portion of benefit obligation484[1]489[1]
Noncurrent portion of benefit obligation17,56117,742
CDT Anniversary Plan [Member]
  
Defined Benefit Plan Disclosure [Line Items]  
Total benefit obligation492550
Current portion of benefit obligation78[1]57[1]
Noncurrent portion of benefit obligation414493
CDT Early Retirement Plan [Member]
  
Defined Benefit Plan Disclosure [Line Items]  
Total benefit obligation182234
Noncurrent portion of benefit obligation182234
IXOS Defined Benefit Plan [Member]
  
Defined Benefit Plan Disclosure [Line Items]  
Total benefit obligation149
Noncurrent portion of benefit obligation149
CDT Pension Plan [Member]
  
Defined Benefit Plan Disclosure [Line Items]  
Total benefit obligation18,73319,024
Current portion of benefit obligation562[1]546[1]
Noncurrent portion of benefit obligation$ 18,171$ 18,478
[1]The current portion of the benefit obligation has been included within Accounts payable and accrued liabilities within the Condensed Consolidated Balance Sheets.