Goodwill and Intangible Assets, net (Tables)

12 Months Ended

Dec. 31, 2012

Changes in Carrying Amount of Goodwill

Changes in the carrying amount of goodwill are as follows (in thousands):

	December 31,
	2012		2011
Beginning of year	$	29,492	$	29,266
Goodwill acquired		424,664		3,773
Impact of foreign currency		17,143		(98	)
Discontinued operations		—		(3,449	)
End of year	$	471,299	$	29,492

Schedule of Intangible Assets by Major Class

Intangible assets, net consists of the following (in thousands):

	December 31,
	2012				2011
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Customer relationships	$	191,348	$	12,731	$	14,460	$	4,025
Acquired intellectual property		95,012		7,984		3,780		2,877
Trade names		64,082		2,910		1,102		402
Software		10,877		2,503		2,048		505
Intangible assets, net	$	361,319	$	26,128	$	21,390	$	7,809