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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, unless otherwise specified
Dec. 31, 2011
Jun. 30, 2011
Defined Benefit Plan Disclosure [Line Items]    
Noncurrent portion of benefit obligation $ 17,180 $ 18,478
CDT Defined Benefit Plan [Member]
    
Defined Benefit Plan Disclosure [Line Items]    
Total benefit obligation 17,119 18,231
Current portion of benefit obligation 480 [1] 489 [1]
Noncurrent portion of benefit obligation 16,639 17,742
CDT Anniversary Plan [Member]
    
Defined Benefit Plan Disclosure [Line Items]    
Total benefit obligation 486 550
Current portion of benefit obligation 93 [1] 57 [1]
Noncurrent portion of benefit obligation 393 493
CDT Early Retirement Plan [Member]
    
Defined Benefit Plan Disclosure [Line Items]    
Total benefit obligation 129 234
Noncurrent portion of benefit obligation 129 234
IXOS Defined Benefit Plan [Member]
    
Defined Benefit Plan Disclosure [Line Items]    
Total benefit obligation 19 9
Noncurrent portion of benefit obligation 19 9
CDT Pension Plan [Member]
    
Defined Benefit Plan Disclosure [Line Items]    
Total benefit obligation 17,753 19,024
Current portion of benefit obligation 573 [1] 546 [1]
Noncurrent portion of benefit obligation $ 17,180 $ 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.