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Fair Value Of Financial Instruments (Assets And Liabilities Measured At Fair Value) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Dec. 31, 2010
Sep. 30, 2010
Jun. 30, 2010
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Deferred compensation plan investments, current and non-current portion $ 11,705          
Total assets at fair value 12,048          
Liability for contingent consideration, current and non-current portion 20,002 21,253 23,794         
Total 20,014          
Quoted Prices In Active Markets (Level 1) [Member]
           
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Deferred compensation plan investments, current and non-current portion 11,705          
Total assets at fair value 11,705          
Significant Other Observable Inputs (Level 2) [Member]
           
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Total assets at fair value 343          
Total 12          
Significant Unobservable Inputs (Level 3) [Member]
           
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Liability for contingent consideration, current and non-current portion 20,002          
Total 20,002          
Forward Foreign Currency Exchange Contracts [Member]
           
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Forward foreign currency exchange contracts, assets 343          
Forward foreign currency exchange contracts, liabilities 12          
Forward Foreign Currency Exchange Contracts [Member] | Significant Other Observable Inputs (Level 2) [Member]
           
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Forward foreign currency exchange contracts, assets 343          
Forward foreign currency exchange contracts, liabilities $ 12