Goodwill and Acquired Intangibles (Tables)

9 Months Ended

Sep. 27, 2014

The changes in the carrying amount of goodwill during the nine months ended September 27, 2014 were as follows:



	Gross Carrying Amount
	(In thousands)
Balance as of December 28, 2013	$	456,905
Goodwill resulting from acquisitions	102,025
Measurement period adjustments	(1,913		)
Effect of foreign currency translation	235
Balance as of September 27, 2014	$	557,252

Acquired intangibles as of December 28, 2013 were as follows, excluding intangibles that were fully amortized as of December 29, 2012:



	Gross Carrying Amount		Accumulated Amortization			Acquired Intangibles, Net
	(In thousands)
Existing technology	$	237,624	$	(53,243	)	$	184,381
Agreements and relationships	170,760		(53,607		)	117,153
Distribution rights	30,100		(30,100		)	—
Tradenames, trademarks and patents	9,519		(2,870		)	6,649
Total acquired intangibles with definite lives	448,003		(139,820		)	308,183
In-process technology	3,510		—			3,510
Total acquired intangibles	$	451,513	$	(139,820	)	$	311,693

Acquired intangibles as of September 27, 2014 were as follows, excluding intangibles that were fully amortized as of December 28, 2013:



	Gross Carrying Amount		Accumulated Amortization			Acquired Intangibles, Net
	(In thousands)
Existing technology	$	325,565	$	(74,679	)	$	250,886
Agreements and relationships	175,388		(59,258		)	116,130
Tradenames, trademarks and patents	10,618		(4,023		)	6,595
Total acquired intangibles with definite lives	511,571		(137,960		)	373,611
In-process technology	5,216		—			5,216
Total acquired intangibles	$	516,787	$	(137,960	)	$	378,827

Amortization of acquired intangibles for the three and nine months ended September 27, 2014 and September 28, 2013 was as follows:



	Three Months Ended				Nine Months Ended
	September 27, 2014		September 28, 2013		September 27, 2014		September 28, 2013
	(In thousands)
Cost of product and maintenance	$	10,071	$	7,191	$	26,260	$	16,758
Amortization of acquired intangibles	6,316		5,141		17,105		14,259
Total amortization of acquired intangibles	$	16,387	$	12,332	$	43,365	$	31,017

Estimated amortization expense for intangible assets with definite lives for the following five fiscal years and thereafter is as follows:



	(In thousands)
2014 – remaining period	$	16,452
2015	64,259
2016	57,383
2017	52,421
2018	48,813
Thereafter	134,283
Total estimated amortization expense	$	373,611