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Consolidated Statements of Comprehensive Income (Parentheticals) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Statement of Comprehensive Income [Abstract]      
Derivative and hedging activity, tax benefit (expense) $ (149) $ 1,175 $ (1,318)
Pension and post employment benefit adjustment, tax benefit (expense) $ 4,555 $ (2,963) $ 11,626