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Accrued Liabilities (Schedule Of Accrued Liabilities) (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Accrued Liabilities [Abstract]    
Accrued expenses $ 45,512 $ 44,274
Accrued employee compensation and related expenses 54,632 62,474
Accrued taxes 15,766 16,508
Accrued customer programs 31,335 25,663
Accrued liabilities $ 147,245 $ 148,919