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Goodwill and Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill
The following table presents a reconciliation of the beginning and ending balances of the Company’s goodwill at January 1, 2016 and December 31, 2016 (in millions):
 
Infrastructure
Solutions
 
Corrosion
Protection
 
Energy
Services
 
Total
Balance, January 1, 2016
 
 
 
 
 
 
 
Goodwill, gross
$
190,525

 
$
73,345

 
$
80,246

 
$
344,116

Accumulated impairment losses
(16,069
)
 
(45,400
)
 
(33,527
)
 
(94,996
)
Goodwill, net
174,456

 
27,945

 
46,719

 
249,120

Acquisitions (1)
50,585

 
—

 
—

 
50,585

Foreign currency translation
(1,616
)
 
530

 
—

 
(1,086
)
Balance, December 31, 2016
 
 
 
 
 
 
 
Goodwill, gross
239,494

 
73,875

 
80,246

 
393,615

Accumulated impairment losses
(16,069
)
 
(45,400
)
 
(33,527
)
 
(94,996
)
Goodwill, net
$
223,425

 
$
28,475

 
$
46,719

 
$
298,619

__________________________
(1) 
During 2016 , the Company recorded goodwill of $44.0 million, $2.4 million, $0.8 million and $3.4 million related to the acquisitions of Underground Solutions, Fyfe Europe, LMJ and Concrete Solutions, respectively (see Note 1).
Schedule of Finite-Lived Intangible Assets
Intangible assets were as follows (in thousands):
 
December 31, 2016
 
December 31, 2015
 
Weighted Average Useful Lives (Years)
 
Gross Carrying Amount
 
Accumulated Amortization
 
Net Carrying Amount
 
Gross Carrying Amount
 
Accumulated Amortization
 
Net Carrying Amount
License agreements (1)
9.2
 
$
4,418

 
$
(3,438
)
 
$
980

 
$
3,893

 
$
(3,275
)
 
$
618

Leases
10.8
 
2,065

 
(912
)
 
1,153

 
2,065

 
(764
)
 
1,301

Trademarks (2)
13.6
 
24,185

 
(7,868
)
 
16,317

 
22,519

 
(6,262
)
 
16,257

Non-competes (3)
1.7
 
1,308

 
(1,054
)
 
254

 
1,210

 
(945
)
 
265

Customer relationships (4)
11.4
 
187,554

 
(53,830
)
 
133,724

 
164,779

 
(41,967
)
 
122,812

Patents and acquired technology (5)
10.0
 
66,222

 
(23,739
)
 
42,483

 
55,260

 
(22,395
)
 
32,865

 
 
 
$
285,752

 
$
(90,841
)
 
$
194,911

 
$
249,726

 
$
(75,608
)
 
$
174,118

__________________________
(1) 
During 2016, the Company recorded license agreements of $0.6 million related to the acquisition of LMJ’s CIPP business (see Note 1).
(2) 
During 2016, the Company recorded trademarks of $1.4 million, $0.1 million and $0.1 million related to the acquisitions of Underground Solutions, Fyfe Europe and Concrete Solutions, respectively (see Note 1).
(3) 
During 2016, the Company recorded non-compete agreements of $0.1 million related to the acquisition of Fyfe Europe (see Note 1).
(4) 
During 2016, the Company recorded customer relationships of $20.7 million, $0.3 million, $0.2 million and $1.6 million related to the acquisitions of Underground Solutions, Fyfe Europe, LMJ’s CIPP business and Concrete Solutions, respectively (see Note 1).
(5) 
During 2016, the Company recorded acquired technology of $11.3 million related to the acquisition of Underground Solutions (see Note 1).
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense
Estimated amortization expense by year is as follows (in thousands):
Year
 
Amount
2017
 
$
17,212

2018
 
17,040

2019
 
16,883

2020
 
16,841

2021
 
16,684