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Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill
The following table presents the goodwill balance by reportable segment (in thousands):
December 31,
 
2015
 
2014
Construction
 
$
29,260

 
$
29,260

Large Project Construction
 
22,593

 
22,593

Construction Materials
 
1,946

 
1,946

Total goodwill
 
$
53,799

 
$
53,799
Schedule of Finite-Lived Intangible Assets by Major Class
Amortized Intangible Assets
The following is the breakdown of our amortized intangible assets that are included in other noncurrent assets on the consolidated balance sheets (in thousands):
 
 
 
 
Accumulated
 
 
December 31, 2015
 
Gross Value
 
Amortization
 
Net Value
Permits
 
$
29,713

 
$
(14,239
)
 
$
15,474

Acquired backlog
 
7,900

 
(7,594
)
 
306

Customer lists
 
4,398

 
(3,078
)
 
1,320

Trade name
 
4,100

 
(1,295
)
 
2,805

Covenants not to compete and other
 
2,459

 
(2,430
)
 
29

Total amortized intangible assets
 
$
48,570

 
$
(28,636
)
 
$
19,934

December 31, 2014
 
 
 
 
 
 
Permits
 
$
29,713

 
$
(13,115
)
 
$
16,598

Acquired backlog
 
7,900

 
(7,263
)
 
637

Customer lists
 
4,398

 
(2,785
)
 
1,613

Trade name
 
4,100

 
(863
)
 
3,237

Covenants not to compete and other
 
2,459

 
(2,428
)
 
31

Total amortized intangible assets
 
$
48,570

 
$
(26,454
)
 
$
22,116