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Consolidated Statements of Income (Parentheticals) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Income Statement [Abstract]      
Income taxes from discontinued operations $ 315us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation $ 120,750us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation $ 10,831us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation