Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2013

A summary of changes in Quanta’s goodwill is as follows (in thousands):


	Electric Power Division			Natural Gas and Pipeline Division			Fiber Optic Licensing Division		Total
Goodwill balance at December 31, 2012	$	1,065,152		$	137,703		$	334,790	$	1,537,645
Goodwill acquired during 2013		76,756			41,107			—		117,863
Foreign currency translation related to goodwill		(4,701	)		(795	)		—		(5,496	)

Goodwill balance at September 30, 2013	$	1,137,207		$	178,015		$	334,790	$	1,650,012

Activity in Quanta’s intangible assets consists of the following (in thousands):


	As of December 31, 2012					Nine Months Ended September 30, 2013								As of September 30, 2013
	Intangible Assets		Accumulated Amortization			Amortization Expense			Additions		Foreign Currency Adjustments			Intangible Assets, Net		Remaining Weighted Average Amortization Period in Years
Customer relationships	$	170,465	$	(47,777	)	$	(8,575	)	$	14,155	$	(1,141	)	$	127,127		10.9
Backlog		126,057		(119,068	)		(4,675	)		7,314		(24	)		9,604		1.7
Trade names		32,559		(3,014	)		(838	)		4,121		(206	)		32,622		26.9
Non-compete agreements		27,406		(20,706	)		(1,737	)		344		(155	)		5,152		2.7
Patented rights and developed technology		20,931		(7,517	)		(1,581	)		—		(89	)		11,744		5.5

Total intangible assets subject to amortization		377,418		(198,082	)		(17,406	)		25,934		(1,615	)		186,249		12.7
Other intangible assets not subject to amortization		4,500		—			—			—		—			4,500		N/A

Total intangible assets	$	381,918	$	(198,082	)	$	(17,406	)	$	25,934	$	(1,615	)	$	190,749		N/A

The estimated future aggregate amortization expense of intangible assets as of September 30, 2013 is set forth below (in thousands):


For the Fiscal Year Ending December 31 —
Remainder of 2013	$	7,541
2014		22,276
2015		16,994
2016		16,140
2017		15,170
Thereafter		108,128

Total	$	186,249