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Shareholders' Equity (Schedule Of Accumulated Balances Related To Other Comprehensive Income (Loss)) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Stockholders' Equity Note [Abstract]    
Foreign currency translation adjustments: Mexico $ 0 $ 51
Fair value of derivatives, net of income taxes of $2,086 in 2011 and 2010 (1,306) (1,570)
Accumulated other comprehensive income (loss), net of tax, total (1,306) (1,519)
Deferred Tax Liabilities, Derivatives $ 2,086 $ 2,086