Goodwill and Acquired Intangibles (Tables)

3 Months Ended

Mar. 28, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the carrying amount of goodwill

The changes in the carrying amount of goodwill during the three months ended March 28, 2020 were as follows:

	Gross Carrying Amount
	(In thousands)
Balance as of December 28, 2019	$	661,856
Goodwill resulting from acquisitions	119,085
Effect of foreign currency translation	(1,949		)
Balance as of March 28, 2020	$	778,992

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

Acquired intangibles as of March 28, 2020 were as follows, excluding intangibles that were fully amortized as of December 28, 2019:

	Gross Carrying Amount		Accumulated Amortization			Acquired Intangibles, Net
	(In thousands)
Existing technology	$	350,238	$	(196,159	)	$	154,079
Agreements and relationships	179,985		(99,581		)	80,404
Tradenames, trademarks and patents	10,590		(5,956		)	4,634
Total acquired intangibles with definite lives	540,813		(301,696		)	239,117
In-process technology	19,500		—			19,500
Total acquired intangibles	$	560,313	$	(301,696	)	$	258,617

Acquired intangibles as of December 28, 2019 were as follows, excluding intangibles that were fully amortized as of December 29, 2018:

	Gross Carrying Amount		Accumulated Amortization			Acquired Intangibles, Net
	(In thousands)
Existing technology	$	363,142	$	(245,902	)	$	117,240
Agreements and relationships	146,395		(112,565		)	33,830
Tradenames, trademarks and patents	7,600		(5,795		)	1,805
Total acquired intangibles with definite lives	517,137		(364,262		)	152,875
In-process technology	19,500		—			19,500
Total acquired intangibles	$	536,637	$	(364,262	)	$	172,375

Amortization of acquired intangibles

Amortization of acquired intangibles for the three months ended March 28, 2020 and March 30, 2019 was as follows:

	Three Months Ended
	March 28, 2020		March 30, 2019
	(In thousands)
Cost of product and maintenance	$	10,860	$	9,854
Amortization of acquired intangibles	4,206		3,308
Total amortization of acquired intangibles	$	15,066	$	13,162

Estimated amortization expense

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

	(In thousands)
2020 - remaining period	$	46,690
2021	57,598
2022	39,292
2023	23,762
2024	22,299
Thereafter	49,476
Total estimated amortization expense	$	239,117