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Consolidated Statements of Operations (Unaudited) (Parenthetical) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Income Statement [Abstract]        
Income tax provision on equity in earnings of affiliates $ 711 $ 578 $ 1,914 $ 1,472
Income tax provision on loss from discontinued operations $ 0 $ 0 $ 0 $ 0