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Goodwill and Other Intangible Assets
6 Months Ended
Jun. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Other Intangible Assets
GOODWILL AND OTHER INTANGIBLE ASSETS
The following table presents the goodwill balance by reportable segment:
 
 
Rail Products and
Services
 
Construction
Products
 
Tubular and Energy
Services
 
Total
Balance at December 31, 2016
 
$
13,785

 
$
5,147

 
$

 
$
18,932

Foreign currency translation impact
 
499

 

 

 
499

Balance at June 30, 2017
 
$
14,284

 
$
5,147

 
$

 
$
19,431



The Company performs goodwill impairment tests annually during the fourth quarter, and also performs interim goodwill impairment tests if it is determined that it is more likely than not that the fair value of a reporting unit is less than the carrying amount. Qualitative factors are assessed to determine whether it is more likely than not that the fair value of a reporting unit is less than the carrying amount. No goodwill impairment test was required in connection with these evaluations for the six months ended June 30, 2017. The Company continues to monitor the recoverability of the long-lived assets associated with certain reporting units of the Company and the long-term financial projections of the businesses. Sustained declines in the markets we serve may result in future long-lived asset impairment.

The following table represents the gross other intangible assets balance by reportable segment:
 
 
June 30,
2017
 
December 31,
2016
Rail Products and Services
 
$
57,139

 
$
56,476

Construction Products
 
1,348

 
1,348

Tubular and Energy Services
 
29,179

 
29,179

 
 
$
87,666

 
$
87,003


The components of the Company’s intangible assets are as follows:
 
 
June 30, 2017
 
 
Weighted Average
Amortization
Period In Years
 
Gross
Carrying
Value
 
Accumulated
Amortization
 
Net
Carrying
Amount
Non-compete agreements
 
5
 
$
4,215

 
$
(2,639
)
 
$
1,576

Patents
 
10
 
377

 
(150
)
 
227

Customer relationships
 
18
 
37,329

 
(7,872
)
 
29,457

Trademarks and trade names
 
14
 
10,057

 
(3,664
)
 
6,393

Technology
 
14
 
35,688

 
(12,730
)
 
22,958

 
 
 
 
$
87,666

 
$
(27,055
)
 
$
60,611

 
 
 
 
 
 
 
 
 
 
 
December 31, 2016
 
 
Weighted Average
Amortization
Period In Years
 
Gross
Carrying
Value
 
Accumulated
Amortization
 
Net
Carrying
Amount
Non-compete agreements
 
5
 
$
4,219

 
$
(2,217
)
 
$
2,002

Patents
 
10
 
373

 
(143
)
 
230

Customer relationships
 
18
 
36,843

 
(6,582
)
 
30,261

Trademarks and trade names
 
14
 
10,018

 
(3,238
)
 
6,780

Technology
 
14
 
35,550

 
(11,304
)
 
24,246

 
 
 
 
$
87,003

 
$
(23,484
)
 
$
63,519



Intangible assets are amortized over their useful lives, which range from 4 to 25 years, with a total weighted average amortization period of approximately 15 years at June 30, 2017. Amortization expense for the three months ended June 30, 2017 and 2016 was $1,695 and $2,789, respectively. Amortization expense for the six months ended June 30, 2017 and 2016 was $3,454 and $6,055, respectively.

Estimated amortization expense for the remainder of 2017 and thereafter is as follows:
 
Amortization Expense
2017
$
3,543

2018
6,982

2019
6,261

2020
5,941

2021
5,921

2022 and thereafter
31,963

 
$
60,611