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Costs and Billings on Uncompleted Contracts (Tables)
 12 Months Ended
Dec. 31, 2016
Costs and Billings on Uncompleted Contracts [Abstract]  
Schedule of Deferred Project Costs and Revenue
The below table shows the components of these items:
 
 
As of December 31,
(in thousands)
 
2016
 
2015
Costs incurred on uncompleted contracts (gross)
 
$
42,993

 
$
72,581

Billings on uncompleted contracts (gross)
 
(47,915
)
 
(80,152
)
 
 
$
(4,922
)
 
$
(7,571
)
Included in the accompanying balance sheets under the following captions (1):
 
 
 
 
Costs in excess of billings on uncompleted contracts
 
$
25

 
$
2,137

Billings in excess of costs on uncompleted contracts
 
(4,947
)
 
(9,708
)

 
$
(4,922
)
 
$
(7,571
)

(1) Amounts presented after netting of costs and billings on an individual contract basis.