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Receivables (Tables)
6 Months Ended
Jun. 30, 2016
Receivables [Abstract]  
Schedule of composition of receivables
Receivables consisted of the following:
(dollars in thousands)
June 30,
2016
 
December 31,
2015
Trade receivables, net
$
74,248

 
$
66,648

Other receivables
10,068

 
13,455

Total
$
84,316

 
$
80,103