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Accounts Receivable (Tables)
9 Months Ended
Sep. 30, 2016
Receivables [Abstract]  
Summary of Accounts Receivable

 

(Table only in thousands)

 

September 30,

2016

 

 

December 31,

2015

 

Trade receivables

 

$

12,068

 

 

$

12,800

 

Contract receivables

 

 

72,641

 

 

 

86,129

 

Allowance for doubtful accounts

 

 

(1,350

)

 

 

(1,151

)

 

 

$

83,359

 

 

$

97,778