Annual report pursuant to Section 13 and 15(d)

Income Taxes (Consolidated Income from Continuing Operations Before Income Taxes) (Details)

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Income Taxes (Consolidated Income from Continuing Operations Before Income Taxes) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Income Tax Disclosure [Abstract]      
U.S. operations $ 73,625 $ 68,412 $ 59,881
Foreign operations 60,282 69,268 45,010
Income before income tax $ 133,907 $ 137,680 $ 104,891