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Accumulated Other Comprehensive Income (Tables)
 3 Months Ended
Mar. 31, 2018
Equity [Abstract]  
Schedule of accumulated other comprehensive income
Accumulated other comprehensive loss consisted of the following:
Dollars in thousands
Foreign Currency Items
December 31, 2017
$
(3,512
)
Current period other comprehensive income (loss), net of tax
(300
)
March 31, 2018
$
(3,812
)