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Accounts Receivable (Tables)
 12 Months Ended
Dec. 31, 2015
Receivables [Abstract]  
Summary of Accounts Receivable

 

(Table only in thousands)

 

2015

 

 

2014

 

Trade receivables

 

$

12,800

 

 

$

15,875

 

Contract receivables

 

 

86,129

 

 

 

43,218

 

Allowance for doubtful accounts

 

 

(1,151

)

 

 

(699

)

 

 

$

97,778

 

 

$

58,394