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Other Liabilities (Tables)
 3 Months Ended
Dec. 31, 2011
Other Liabilities  
Schedule of Other Liabilities
                 
    December 31,     September 30,  
    2011     2011  
Net accrued retirement benefits, less amounts recognized within accrued liabilities
   $ 61,678     $ 61,994  
Uncertain tax positions, net of offsetting benefits (Note 16)
     14,606       14,078  
Other
     11,106       12,622  
 
            
 
 
   $ 87,390     $ 88,694