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Pension Plans And Other Post Retirement Benefits (Narrative) (Details) (USD $)
 3 Months Ended
Mar. 31, 2012
plans
Jun. 30, 2011
Defined Benefit Plan Disclosure [Line Items]    
Net pension liabilities $ 20,468,000 $ 17,742,000
Anniversary Plan [Member]
    
Defined Benefit Plan Disclosure [Line Items]    
Unfunded fair value of benefit obligation 500,000 600,000
Early Retirement Plan [Member]
    
Defined Benefit Plan Disclosure [Line Items]    
Unfunded fair value of benefit obligation 100,000 200,000
IXOS AG Defined Benefit Plans [Member]
    
Defined Benefit Plan Disclosure [Line Items]    
Net pension liabilities $ 25,000 $ 9,000
Number of IXOS defined benefit pension plans (in plans) 2