Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2013

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


	Electric Power Division			Oil and Gas Infrastructure Division			Fiber Optic Licensing Division			Total
Goodwill balance at December 31, 2011	$	988,702		$	113,598		$	368,511		$	1,470,811
Goodwill acquired during 2012		57,451			7,328			—			64,779
Foreign currency translation related to goodwill		2,087			(32	)		—			2,055
Operating unit reorganization		16,912			16,809			(33,721	)		—

Goodwill balance at December 31, 2012		1,065,152			137,703			334,790			1,537,645
Goodwill acquired during 2013		112,549			143,257			—			255,806
Foreign currency translation related to goodwill		(9,617	)		(3,117	)		—			(12,734	)

Goodwill balance at December 31, 2013	$	1,168,084		$	277,843		$	334,790		$	1,780,717

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


	As of December 31, 2012					Twelve Months Ended December 31, 2013								As of December 31, 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	)	$	(12,096	)	$	31,854	$	(2,639	)	$	139,807		10.4
Backlog		126,057		(119,068	)		(9,698	)		12,405		(98	)		9,598		1.3
Trade names		32,559		(3,014	)		(1,251	)		8,321		(501	)		36,114		23.9
Non-compete agreements		27,406		(20,706	)		(2,368	)		1,944		(241	)		6,035		3.1
Patented rights and developed technology		20,931		(7,517	)		(2,102	)		600		(89	)		11,823		5.1

Total intangible assets subject to amortization		377,418		(198,082	)		(27,515	)		55,124		(3,568	)		203,377		11.8
Other intangible assets not subject to amortization		4,500		—			—			—		—			4,500		N/A

Total intangible assets	$	381,918	$	(198,082	)	$	(27,515	)	$	55,124	$	(3,568	)	$	207,877		N/A

The estimated future aggregate amortization expense of intangible assets as of December 31, 2013 is set forth below (in thousands):


For the Fiscal Year Ending December 31,
2014	$	27,917
2015		19,492
2016		18,664
2017		17,705
2018		17,418
Thereafter		102,181

Total	$	203,377