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Receivables (Tables)
3 Months Ended
Mar. 31, 2017
Receivables [Abstract]  
Schedule of composition of receivables
Receivables consisted of the following:
(dollars in thousands)
March 31,
2017
 
December 31,
2016
Trade receivables, net
$
104,512

 
$
110,873

Other receivables
5,541

 
4,573

Total
$
110,053

 
$
115,446