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Short Term Borrowings And Long Term Debt (Narrative) (Details)
 0 Months Ended 3 Months Ended 6 Months Ended 6 Months Ended
Dec. 31, 2011
USD ($)
Jun. 30, 2011
USD ($)
Dec. 31, 2011
Secured Revolving Credit Facility [Member]
EUR (€)
Oct. 11, 2011
Previous Multi-Currency Revolving Credit Facility [Member]
USD ($)
Dec. 31, 2011
Multi-Currency Revolving Credit Facility [Member]
USD ($)
Dec. 31, 2011
Multi-Currency Revolving Credit Facility [Member]
USD ($)
Dec. 31, 2010
Multi-Currency Revolving Credit Facility [Member]
USD ($)
Dec. 31, 2011
Multi-Currency Revolving Credit Facility Letter Of Credit [Member]
USD ($)
Dec. 31, 2011
Multi-Currency Revolving Credit Facility, Accordion Feature [Member]
USD ($)
Dec. 31, 2011
Multi-Currency Revolving Credit Facility, Combined With Accordion Feature [Member]
USD ($)
Dec. 31, 2011
Industrial Development Revenue Bond [Member]
Dec. 31, 2011
Unsecured Notes Payable To Bank [Member]
Jan. 02, 2008
Unsecured Notes Payable To Bank [Member]
USD ($)
Dec. 31, 2011
LIBOR-Based Loans [Member]
Loans Denominated In U.S. Dollars [Member]
Dec. 31, 2011
LIBOR-Based Loans [Member]
Minimum [Member]
Loans Denominated In U.S. Dollars [Member]
Dec. 31, 2011
LIBOR-Based Loans [Member]
Maximum [Member]
Loans Denominated In U.S. Dollars [Member]
Dec. 31, 2011
LIBOR-Based Loans [Member]
Industrial Development Revenue Bond [Member]
Dec. 31, 2011
LIBOR-Based Loans [Member]
Unsecured Notes Payable To Bank [Member]
Dec. 31, 2011
Prime Rate-Based Loans [Member]
Loans Denominated In U.S. Dollars [Member]
Dec. 31, 2011
Prime Rate-Based Loans [Member]
Minimum [Member]
Loans Denominated In U.S. Dollars [Member]
Dec. 31, 2011
Prime Rate-Based Loans [Member]
Maximum [Member]
Loans Denominated In U.S. Dollars [Member]
Short Term Borrowings Line Of Credit And Long Term Debt [Line Items]                                          
Revolving credit facility     € 6,000,000 $ 250,000,000 $ 300,000,000 $ 300,000,000   $ 50,000,000 $ 150,000,000 $ 450,000,000                      
Percentage spread points on variable rate debt instrument     2.00%                     1.00% 1.00% 2.25% 0.85% 0.65% 0.00% 0.00% 1.25%
Maturity of credit facility       September 28, 2012 October 11, 2016                                
Revolving credit facility, amount borrowed           824,900,000 273,300,000                            
Revolving credit facility, amount repaid           754,500,000 260,600,000                            
Average daily balance on revolving credit facility           86,400,000 5,500,000                            
Borrowings under revolving credit facility 94,978,000 26,513,000                                      
Line of credit facility, increase (decrease) for period, net           69,000,000 12,800,000                            
Maximum time period of interest (years)                     10                    
Face amount of debt                         25,000,000                
Maturity date of debt instrument                     Sep. 01, 2032 Sep. 28, 2012                  
Debt issuance cost         $ 1,400,000 $ 1,400,000                              
Percentage Of Capital Stock Or Other Equity Interest Pledged Per Credit Agreement 65.00%