Goodwill and Acquired Intangibles (Tables)

3 Months Ended

Mar. 31, 2012

Goodwill and Acquired Intangibles [Abstract]

Changes in the carrying amount of goodwill

The changes in the carrying amount of goodwill during the three months ended March 31, 2012 were as follows:

	Gross Carrying Amount
	(In thousands)
Balance as of December 31, 2011	$	192,125
Effect of foreign currency translation		320
Balance as of March 31, 2012	$	192,445

Acquired intangibles with finite lives, excluding intangibles fully amortized at end of prior fiscal year

Acquired intangibles with finite lives as of March 31, 2012 were as follows, excluding intangibles that were fully amortized as of December 31, 2011:

	Gross Carrying Amount		Accumulated Amortization			Acquired Intangibles, net
	(In thousands)
Existing technology	$	90,667	$	(20,037	)	$	70,630
Agreements and relationships		117,108		(29,050	)		88,058
Distribution rights		30,100		(26,338	)		3,762
Tradenames, trademarks and patents		11,183		(7,105	)		4,078
Total acquired intangibles	$	249,058	$	(82,530	)	$	166,528

Acquired intangibles with finite lives as of December 31, 2011 were as follows, excluding intangibles that were fully amortized as of January 1, 2011:

	Gross Carrying Amount		Accumulated Amortization			Acquired Intangibles, net
	(In thousands)
Existing technology	$	90,433	$	(17,119	)	$	73,314
Agreements and relationships		118,060		(27,123	)		90,937
Distribution rights		30,100		(25,585	)		4,515
Tradenames, trademarks and patents		26,183		(21,715	)		4,468
Total acquired intangibles	$	264,776	$	(91,542	)	$	173,234

Amortization of acquired intangibles

Amortization of acquired intangibles for the three months ended March 31, 2012 and April 2, 2011 was as follows:

	Three Months Ended
	March 31, 2012		April 2, 2011
	(In thousands)
Cost of product	$	2,899	$	2,196
Amortization of acquired intangibles		3,786		4,459
Total amortization of acquired intangibles	$	6,685	$	6,655

Estimated amortization expense

Estimated amortization expense for the following five fiscal years and thereafter is as follows:

	(In thousands)
2012 – remaining period	$	19,810
2013		23,096
2014		20,338
2015		20,025
2016		19,585
Thereafter		63,674
Total estimated amortization expense	$	166,528