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Consolidated Statements Of Shareholders' Equity (Parenthetical)
$ in Thousands
3 Months Ended
Mar. 31, 2018
USD ($)
$ / shares
Statement of Stockholders' Equity [Abstract]  
Foreign currency translation adjustment, tax (benefit) $ 0
Derivative financial instruments adjustment, tax (benefit) (144)
Amortization of prior service costs and net gains or losses, tax $ 762
Cash dividends declared, per share | $ / shares $ 0.11