Goodwill and Acquired Intangibles (Tables)

9 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the carrying amount of goodwill

The changes in the carrying amount of goodwill during the nine months ended September 30, 2017 were as follows:

	Gross Carrying Amount
	(In thousands)
Balance as of December 31, 2016	$	572,764
Effect of foreign currency translation	2,148
Balance as of September 30, 2017	$	574,912

Schedule of acquired intangibles with finite and indefinite lives (excluding goodwill)

Acquired intangibles as of September 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	$	340,772	$	(189,572	)	$	151,200
Agreements and relationships	150,018		(87,154		)	62,864
Tradenames, trademarks and patents	9,019		(6,906		)	2,113
Total acquired intangibles	$	499,809	$	(283,632	)	$	216,177

Acquired intangibles as of December 31, 2016 were as follows, excluding intangibles that were fully amortized as of January 2, 2016:

	Gross Carrying Amount		Accumulated Amortization			Acquired Intangibles, Net
	(In thousands)
Existing technology	$	342,108	$	(160,178	)	$	181,930
Agreements and relationships	174,623		(100,778		)	73,845
Tradenames, trademarks and patents	9,806		(6,767		)	3,039
Total acquired intangibles	$	526,537	$	(267,723	)	$	258,814

Amortization of acquired intangibles

Amortization of acquired intangibles for the three and nine months ended September 30, 2017 and October 1, 2016 was as follows:

	Three Months Ended				Nine Months Ended
	September 30, 2017		October 1, 2016		September 30, 2017		October 1, 2016
	(In thousands)
Cost of product and maintenance	$	10,165	$	10,593	$	31,611	$	31,802
Amortization of acquired intangibles	3,453		3,889		11,145		14,206
Total amortization of acquired intangibles	$	13,618	$	14,482	$	42,756	$	46,008

Estimated amortization expense

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

	(In thousands)
2017 – remaining period	$	13,619
2018	52,193
2019	45,183
2020	39,975
2021	35,484
Thereafter	29,723
Total estimated amortization expense	$	216,177