v2.4.0.6
Valuation And Qualifying Accounts (Summary Of Changes In Valuation And Qualifying Accounts) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Allowance For Doubtful Accounts [Member]
     
Valuation and Qualifying Accounts Disclosure [Line Items]      
Balance of Beginning of Period $ 6,930 $ 11,453 $ 9,682
Charges to Earnings 4,095 360 3,846
Charges to Other Accounts 120 [1] (108) [1] 348 [1]
Deductions (3,186) (4,775) (2,423)
Balance at End of Period 7,959 6,930 11,453
Other Reserves [Member]
     
Valuation and Qualifying Accounts Disclosure [Line Items]      
Balance of Beginning of Period 7,797 6,599 5,842
Charges to Earnings         
Charges to Other Accounts    [1]    [1]    [1]
Deductions         
Balance at End of Period $ 11,114 $ 7,797 $ 6,599
[1] Charges to other accounts primarily relates to amounts acquired through acquisitions and net translation adjustments.