Goodwill and Acquired Intangibles (Tables)

6 Months Ended

Jun. 30, 2012

Goodwill and Acquired Intangibles [Abstract]

Changes in the carrying amount of goodwill

	Gross Carrying Amount
	(In thousands)
Balance as of December 31, 2011	$	192,125
Effect of foreign currency translation		113
Balance as of June 30, 2012	$	192,238

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

	Gross Carrying Amount		Accumulated Amortization			Acquired Intangibles, Net
	(In thousands)
Existing technology	$	90,516	$	(22,917	)	$	67,599
Agreements and relationships		117,580		(32,212	)		85,368
Distribution rights		30,100		(27,090	)		3,010
Tradenames, trademarks and patents		11,183		(7,353	)		3,830
Total acquired intangibles	$	249,379	$	(89,572	)	$	159,807

	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

	Three Months Ended				Six Months Ended
	June 30, 2012		July 2, 2011		June 30, 2012		July 2, 2011
	(In thousands)
Cost of product	$	2,891	$	2,483	$	5,790	$	4,679
Amortization of acquired intangibles		3,643		4,505		7,429		8,964
Total amortization of acquired intangibles	$	6,534	$	6,988	$	13,219	$	13,643

Estimated amortization expense

	(In thousands)
2012 – remaining period	$	13,186
2013		23,099
2014		20,315
2015		20,001
2016		19,562
Thereafter		63,644
Total estimated amortization expense	$	159,807