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Pension and Other Postretirement and Postemployment Benefits (Details 2) (Pension plans contribution [Member], USD $)
In Thousands
Jun. 30, 2011
Jun. 30, 2010
Pension plans contribution [Member]
   
Accumulated benefit obligations exceeding the fair value of plan assets    
Projected benefit obligation $ 124,684 $ 189,042
Accumulated benefit obligation 123,016 186,723
Fair value of plan assets $ 0 $ 70,456