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Income Taxes Income Taxes (Table 1) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Taxes [Abstract]      
Income (Loss) from Continuing Operations before Income Taxes, Domestic $ 124,472 $ 110,526 $ 81,785
Income (Loss) from Continuing Operations before Income Taxes, Foreign 47,855 60,474 90,681
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest $ 172,327 $ 171,000 $ 172,466