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Goodwill Goodwill
 3 Months Ended
Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill Disclosure [Text Block]
Goodwill

Goodwill activity for the first three months of 2018 and 2017 is included in the table below:
 
(Dollars in thousands)
 
Three Months Ended March 31,
 
2018
 
2017
Beginning balance
$
19,614

 
$
5,520

    Adjustment to original acquisition allocation
(17
)
 
—

Impact of foreign exchange
(465
)
 
40

Ending balance
$
19,132

 
$
5,560