Goodwill and Acquired Intangibles (Tables)

9 Months Ended

Sep. 29, 2018

The changes in the carrying amount of goodwill during the nine months ended September 29, 2018 were as follows:



	Gross Carrying Amount
	(In thousands)
Balance as of December 30, 2017	$	666,009
Effect of foreign currency translation	(4,668		)
Balance as of September 29, 2018	$	661,341

Acquired intangibles as of December 30, 2017 were as follows, excluding intangibles that were fully amortized as of December 31, 2016:



	Gross Carrying Amount		Accumulated Amortization			Acquired Intangibles, Net
	(In thousands)
Existing technology	$	342,810	$	(199,529	)	$	143,281
Agreements and relationships	151,063		(90,675		)	60,388
Tradenames, trademarks and patents	10,918		(7,252		)	3,666
Total acquired intangibles with definite lives	504,791		(297,456		)	207,335
In-process technology	71,500		—			71,500
Total acquired intangibles	$	576,291	$	(297,456	)	$	278,835

Acquired intangibles as of September 29, 2018 were as follows, excluding intangibles that were fully amortized as of December 30, 2017:



	Gross Carrying Amount		Accumulated Amortization			Acquired Intangibles, Net
	(In thousands)
Existing technology	$	330,667	$	(216,345	)	$	114,322
Agreements and relationships	146,359		(96,632		)	49,727
Tradenames, trademarks and patents	10,718		(7,882		)	2,836
Total acquired intangibles with definite lives	487,744		(320,859		)	166,885
In-process technology	71,500		—			71,500
Total acquired intangibles	$	559,244	$	(320,859	)	$	238,385

Amortization of acquired intangibles for the three and nine months ended September 29, 2018 and September 30, 2017 was as follows:



	Three Months Ended				Nine Months Ended
	September 29, 2018		September 30, 2017		September 29, 2018		September 30, 2017
	(In thousands)
Cost of product and maintenance	$	9,505	$	10,165	$	29,773	$	31,611
Amortization of acquired intangibles	3,470		3,453		10,618		11,145
Total amortization of acquired intangibles	$	12,975	$	13,618	$	40,391	$	42,756

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



	(In thousands)
2018 – remaining period	$	12,941
2019	46,208
2020	40,608
2021	36,115
2022	17,810
Thereafter	13,203
Total estimated amortization expense	$	166,885