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Receivables (Tables)
 3 Months Ended
Mar. 31, 2017
Receivables  
Schedule of receivables

Receivables consisted of the following (dollars in thousands):

 

 

 

 

 

 

 

 

 

 

 

March 31,

 

December 31,

 

 

    

2017

    

2016

 

Customers and other

 

$

35,141

 

$

37,408

 

Allowance for doubtful accounts

 

 

(3,764)

 

 

(4,031)

 

 

 

$

31,377

 

$

33,377