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Pension and Other Postretirement and Postemployment Benefits (Details 1) (Pension plans contribution [Member], USD $)
In Thousands
Jun. 30, 2011
Jun. 30, 2010
Pension plans contribution [Member]
   
Pre-tax amounts recognized in accumulated other comprehensive income    
Unrecognized net actuarial (gains) losses $ 66,734 $ 125,971
Unrecognized net prior service credits (1,540) (2,534)
Unrecognized transition obligations 1,202 1,120
Total $ 66,396 $ 124,557