Note 4 - Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Goodwill

(In thousands)
	Energy and Mining			Water and Wastewater			Commercial and Structural			Total
Beginning balance at January 1, 2014	$	153,110		$	130,078		$	65,492		$	348,680
Additions to goodwill through acquisitions (1)	—			—			1,098			1,098
Foreign currency translation	(609		)	(1,845		)	(88		)	(2,542		)
Balance at September 30, 2014	$	152,501		$	128,233		$	66,502		$	347,236

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⁽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).

Schedule of Finite-Lived Intangible Assets

Identified Intangible Assets

(In thousands)		September 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	$	3,912	$	(3,094	)	$	818	$	3,917	$	(2,977	)	$	940
Backlog	0	4,736		(4,736		)	—		4,745		(4,745		)	—
Leases	12	2,067		(588		)	1,479		2,067		(477		)	1,590
Trademarks	16	21,648		(4,941		)	16,707		21,394		(4,167		)	17,227
Non-competes	4	1,140		(817		)	323		1,140		(753		)	387
Customer relationships (1)	14	147,704		(12,517		)	135,187		182,703		(28,287		)	154,416
Patents and acquired technology	16	59,152		(23,692		)	35,460		57,419		(22,696		)	34,723
		$	240,359	$	(50,385	)	$	189,974	$	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	$	14,224
2015	13,509
2016	13,516
2017	13,469
2018	13,391