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
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]      
U.S. operations $ 29,154 $ 247,642 $ 224,430
Foreign operations 110,369 157,787 136,287
Income before income tax $ 139,523 $ 405,429 $ 360,717