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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
Mar. 31, 2012
Jun. 30, 2011
Defined Benefit Plan Disclosure [Line Items]    
Noncurrent portion of benefit obligation $ 21,001 $ 18,478
CDT Defined Benefit Plan [Member]
    
Defined Benefit Plan Disclosure [Line Items]    
Total benefit obligation 20,975 18,231
Current portion of benefit obligation 507 [1] 489 [1]
Noncurrent portion of benefit obligation 20,468 17,742
CDT Anniversary Plan [Member]
    
Defined Benefit Plan Disclosure [Line Items]    
Total benefit obligation 496 550
Current portion of benefit obligation 90 [1] 57 [1]
Noncurrent portion of benefit obligation 406 493
CDT Early Retirement Plan [Member]
    
Defined Benefit Plan Disclosure [Line Items]    
Total benefit obligation 102 234
Current portion of benefit obligation 0 [1] 0 [1]
Noncurrent portion of benefit obligation 102 234
IXOS Defined Benefit Plan [Member]
    
Defined Benefit Plan Disclosure [Line Items]    
Total benefit obligation 25 9
Current portion of benefit obligation 0 [1] 0 [1]
Noncurrent portion of benefit obligation 25 9
CDT Pension Plan [Member]
    
Defined Benefit Plan Disclosure [Line Items]    
Total benefit obligation 21,598 19,024
Current portion of benefit obligation 597 [1] 546 [1]
Noncurrent portion of benefit obligation $ 21,001 $ 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.