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Note 4 - Goodwill and Intangible Assets (Tables)
 6 Months Ended
Jun. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill
Goodwill
(In millions)
 
Energy and
Mining
 
Water and
Wastewater
 
Commercial
and Structural
 
Total
Beginning balance at January 1, 2014
$
153.1

 
$
130.1

 
$
65.5

 
$
348.7

Additions to goodwill through acquisitions (1)
—

 
—

 
1.1

 
1.1

Foreign currency translation
(0.1
)
 
0.2

 
0.1

 
0.1

Balance at June 30, 2014 (2)
$
153.0

 
$
130.3

 
$
66.7

 
$
349.9

__________________________
(1) 
During the second quarter of 2014, the Company recorded goodwill of $1.1 million related to the 2012 acquisition of Fyfe Asia (see Note 1).
(2) 
The Company does not have any accumulated impairment charges.
Schedule of Finite-Lived Intangible Assets
Identified Intangible Assets
(In thousands)
 
 
June 30, 2014
 
December 31, 2013
 
Weighted Average Useful Lives (Years)
 
Gross Carrying Amount
 
Accumulated Amortization
 
Net Carrying Amount
 
Gross Carrying Amount
 
Accumulated Amortization
 
Net Carrying Amount
License agreements
6
 
$
3,917

 
$
(3,058
)
 
$
859

 
$
3,917

 
$
(2,977
)
 
$
940

Backlog
0
 
4,744

 
(4,744
)
 
—

 
4,745

 
(4,745
)
 
—

Leases
13
 
2,067

 
(551
)
 
1,516

 
2,067

 
(477
)
 
1,590

Trademarks
16
 
21,521

 
(4,682
)
 
16,839

 
21,394

 
(4,167
)
 
17,227

Non-competes
4
 
1,140

 
(796
)
 
344

 
1,140

 
(753
)
 
387

Customer relationships
14
 
182,832

 
(33,729
)
 
149,103

 
182,703

 
(28,287
)
 
154,416

Patents and acquired technology
17
 
59,022

 
(23,925
)
 
35,097

 
57,419

 
(22,696
)
 
34,723

 
 
 
$
275,243

 
$
(71,485
)
 
$
203,758

 
$
273,385

 
$
(64,102
)
 
$
209,283
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense
Estimated amortization expense by year is as follows (in thousands):
2014
 
$
14,364

2015
 
14,652

2016
 
14,651

2017
 
14,612

2018
 
14,534