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Intangible Assets
6 Months Ended
Jun. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets
Intangible Assets
 
Indefinite-lived Intangible Assets

Indefinite-lived intangible assets primarily consist of goodwill and use rights. Use rights of $0.4 million are included in other noncurrent assets on our condensed consolidated balance sheets as of June 30, 2014, December 31, 2013 and June 30, 2013.

The following table presents the goodwill balance by reporting segment (in thousands):
 
 
June 30,
2014
 
December 31,
2013
 
June 30,
2013
Construction
 
$
29,260

 
$
29,260

 
$
28,300

Large Project Construction
 
22,593

 
22,593

 
23,184

Construction Materials
 
1,946

 
1,946

 
2,114

Total goodwill
 
$
53,799

 
$
53,799

 
$
53,598



Amortized Intangible Assets

Following is the breakdown of our amortized intangible assets that are included in other noncurrent assets on our condensed consolidated balance sheets (in thousands):
 
 
 
 
Accumulated
 
 
June 30, 2014
 
Gross Value
 
Amortization
 
Net Book Value
Permits
 
$
29,713

 
$
(12,554
)
 
$
17,159

Trade name
 
4,100

 
(647
)
 
3,453

Customer lists
 
4,398

 
(2,638
)
 
1,760

Acquired backlog
 
7,900

 
(7,102
)
 
798

Covenants not to compete and other
 
2,459

 
(2,426
)
 
33

Total amortized intangible assets
 
$
48,570

 
$
(25,367
)
 
$
23,203

 
 
 
 
Accumulated
 
 
December 31, 2013
 
Gross Value
 
Amortization
 
Net Book Value
Permits
 
$
29,713

 
$
(11,992
)
 
$
17,721

Trade name
 
4,100

 
(432
)
 
3,668

Customer lists
 
4,398

 
(2,491
)
 
1,907

Acquired backlog
 
7,900

 
(6,835
)
 
1,065

Covenants not to compete and other
 
2,459

 
(2,408
)
 
51

Total amortized intangible assets
 
$
48,570

 
$
(24,158
)
 
$
24,412

 
 
 
 
Accumulated
 
 
June 30, 2013
 
Gross Value
 
Amortization
 
Net Book Value
Permits
 
$
29,713

 
$
(11,430
)
 
$
18,283

Acquired backlog
 
7,900

 
(3,447
)
 
4,453

Trade name
 
4,100

 
(216
)
 
3,884

Customer lists
 
4,398

 
(2,344
)
 
2,054

Covenants not to compete and other
 
2,459

 
(2,347
)
 
112

Total amortized intangible assets
 
$
48,570

 
$
(19,784
)
 
$
28,786


Amortization expense related to amortized intangible assets for the three and six months ended June 30, 2014 was $0.6 million and $1.2 million respectively. Amortization expense related to amortized intangible assets for the three and six months ended June 30, 2013 was $2.3 million and $4.5 million, respectively. Based on the amortized assets balance at June 30, 2014, amortization expense expected to be recorded in the future is as follows: $1.5 million for the remainder of 2014; $2.1 million in 2015; $1.8 million in 2016; $1.7 million in 2017; $1.7 million in 2018; and $14.4 million thereafter.