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Long-Term Debt And Credit Facility (Narrative) (Details)
 6 Months Ended 6 Months Ended
Dec. 31, 2012
USD ($)
Jun. 30, 2012
USD ($)
Dec. 31, 2012
Revolving Credit Facility [Member]
USD ($)
Dec. 31, 2012
Revolving Credit Facility [Member]
Minimum [Member]
Dec. 31, 2012
Revolving Credit Facility [Member]
Maximum [Member]
Dec. 31, 2012
Eurocurrency Rate [Member]
Minimum [Member]
Dec. 31, 2012
Eurocurrency Rate [Member]
Maximum [Member]
Dec. 31, 2012
Base Rate [Member]
Minimum [Member]
Dec. 31, 2012
Base Rate [Member]
Maximum [Member]
Dec. 31, 2012
Foreign Line of Credit [Member]
USD ($)
Dec. 31, 2012
Foreign Line of Credit [Member]
GBP (£)
Debt Disclosure [Abstract]                      
Aggregate principal amount of senior notes $ 150,000,000                    
Senior notes term, in years 10                    
Senior notes maturity date May 02, 2016                    
Senior notes interest percentage 5.98%                    
Senior notes outstanding 150,000,000 150,000,000                  
Revolving credit facility expiration date Aug. 31, 2017                    
Interest coverage ratio 4.00                    
Leverage ratio 3.50                    
Consolidated leverage ratio 4.00                    
Line of Credit Facility [Line Items]                      
Debt Instrument, Basis Spread on Variable Rate           0.875% 2.00% 0.00% 1.00%    
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage       0.20% 0.35%            
Borrowings outstanding under credit agreement 484,922,000 240,000,000 484,922,000             5,152,000  
CreditAgreementIncrementalBorrowingCapacity     150,000,000                
Revolving credit facility     $ 850,000,000               £ 10,000,000