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Short Term Borrowings And Long Term Debt (Narrative) (Details)
3 Months Ended0 Months Ended3 Months Ended3 Months Ended
Sep. 30, 2011
USD ($)
Jun. 30, 2011
USD ($)
Sep. 30, 2011
LIBOR-Based Loans [Member]
Industrial Development Revenue Bond [Member]
Sep. 30, 2011
LIBOR-Based Loans [Member]
Unsecured Notes Payable To Bank [Member]
Sep. 30, 2011
LIBOR-Based Loans [Member]
Minimum [Member]
Multi-Currency Revolving Credit Facility [Member]
Sep. 30, 2011
LIBOR-Based Loans [Member]
Maximum [Member]
Multi-Currency Revolving Credit Facility [Member]
Sep. 30, 2011
LIBOR-Based Loans [Member]
Multi-Currency Revolving Credit Facility [Member]
Sep. 30, 2011
Prime Rate-Based Loans [Member]
Minimum [Member]
Multi-Currency Revolving Credit Facility [Member]
Sep. 30, 2011
Prime Rate-Based Loans [Member]
Maximum [Member]
Multi-Currency Revolving Credit Facility [Member]
Sep. 30, 2011
Prime Rate-Based Loans [Member]
Multi-Currency Revolving Credit Facility [Member]
Sep. 30, 2011
Industrial Development Revenue Bond [Member]
Oct. 11, 2011
Unsecured Notes Payable To Bank [Member]
USD ($)
Sep. 30, 2011
Unsecured Notes Payable To Bank [Member]
Jan. 02, 2008
Unsecured Notes Payable To Bank [Member]
USD ($)
Sep. 30, 2011
Secured Revolving Credit Facility [Member]
EUR (€)
Sep. 30, 2011
Multi-Currency Revolving Credit Facility [Member]
USD ($)
Sep. 30, 2010
Multi-Currency Revolving Credit Facility [Member]
USD ($)
Jun. 30, 2011
Multi-Currency Revolving Credit Facility [Member]
USD ($)
Sep. 30, 2011
Multi-Currency Revolving Credit Facility, Accordion Feature [Member]
USD ($)
Sep. 30, 2011
Multi-Currency Revolving Credit Facility, Combined With Accordion Feature [Member]
USD ($)
Borrowing capacity under credit facility              € 6,000,000$ 250,000,000  $ 50,000,000$ 300,000,000
Percentage spread points on variable rate debt instrument  0.85%0.65%0.50%1.25%0.50%0.00%0.25%0.00%    1.25%     
Maturity of credit facility               September 28, 2012    
Current portion of revolving credit facility24,573,000              24,573,000    
Revolving credit facility, amount borrowed               394,800,0000   
Revolving credit facility, amount repaid               351,300,0000   
Average daily balance on revolving credit facility               53,600,000    
Revolving credit facility, amount outstanding               69,531,000 26,513,000  
Maximum time period of interest (years)          10         
Face amount of debt             25,000,000      
Maturity date of debt instrumentSep. 01, 2032Sep. 28, 2012
Promissory note paid           $ 25,000,000