Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 24, 2011

Goodwill and Intangible Assets

Components of amortized intangible assets

	As of September 24, 2011
	Gross Carrying Amount		Accumulated Amortization		Weighted Average Life
Customer Relationships	$	155,651	$	47,083	13 years
Proprietary Software & Database		2,609		2,609	6 years
Patents & Proprietary Technology		9,524		3,486	8 years
Non-compete Agreements		1,683		1,236	6 years
	$	169,467	$	54,414

	As of December 25, 2010
	Gross Carrying Amount		Accumulated Amortization		Weighted Average Life
Customer Relationships	$	155,664	$	37,932	13 years
Proprietary Software & Database		2,609		2,568	6 years
Patents & Proprietary Technology		9,486		2,336	8 years
Non-compete Agreements		1,674		1,054	6 years
	$	169,433	$	43,890

Amortization expense for intangible assets

Thirteen Weeks Ended September 24, 2011		Thirteen Weeks Ended September 25, 2010		Thirty-nine Weeks Ended September 24, 2011		Thirty-nine Weeks Ended September 25, 2010
$	3,659	$	3,521	$	10,855	$	8,295

Schedule of future estimated amortization expense

	Estimated Amortization Expense
2011	$	14,373
2012		13,886
2013		12,992
2014		12,569
2015		11,730

Non-amortized intangible assets

	September 24, 2011		December 25, 2010
Webforge	$	16,563	$	16,478
Newmark		11,111		11,111
Ingal EPS/Ingal Civil Products		8,794		8,795
Donhad		6,634		6,635
PiRod		4,750		4,750
Industrial Galvanizers		4,628		4,632
Other		7,413		7,591
	$	59,893	$	59,992

Carrying amount of goodwill

	Engineered Infrastructure Products Segment			Utility Support Structures Segment		Coatings Segment		Irrigation Segment			Other			Total
Balance December 25, 2010	$	152,062		$	77,141	$	64,868	$	2,064		$	18,712		$	314,847
Acquisition		—			—		—		939			—			939
Foreign currency translation		(478	)		—		129		(155	)		(142	)		(646	)
Balance September 24, 2011	$	151,584		$	77,141	$	64,997	$	2,848		$	18,570		$	315,140