Purchased Intangible Assets

3 Months Ended

Mar. 28, 2020

Goodwill And Intangible Assets Disclosure [Abstract]

Purchased Intangible Assets

NOTE 6. Purchased Intangible Assets

Goodwill

The changes in the carrying amount of goodwill are as follows:

Balance at December 31, 2019	$	307,148
Goodwill adjustments (Note 2)		478
Balance at March 28, 2020	$	307,626

Purchased intangible assets as of March 28, 2020 and December 31, 2019 are as follows:

	Gross Carrying Amount		Accumulated Amortization		Net
March 28, 2020
Finite-lived intangibles:
Developed technology	$	326,726	$	78,636	$	248,090
Customer and distributor relationships		69,261		13,739		55,522
Trademarks and trade names		12,461		4,451		8,010
Total finite-lived intangible assets		408,448		96,826		311,622
In-process research and development		46,600		—		46,600
Total identifiable intangible assets	$	455,048	$	96,826	$	358,222
December 31, 2019
Finite-lived intangibles:
Developed technology	$	326,726	$	67,861	$	258,865
Customer and distributor relationships		69,261		11,078		58,183
Trademarks and trade names		12,461		4,156		8,305
Total finite-lived intangible assets		408,448		83,095		325,353
In-process research and development		46,600		—		46,600
Total identifiable intangible assets	$	455,048	$	83,095	$	371,953

Intangible assets amortization expenses for the three months ended March 28, 2020 and March 31, 2019 were $13,732 and $387, respectively.  Assuming no change in the gross carrying value of identifiable intangible assets and estimated lives, estimated amortization expenses for the remainder of fiscal 2020 are $40,009, and for each of the next five fiscal years estimated amortization expenses are $48,009 for 2021, $47,610 for 2022, $47,135 for 2023, $41,450 for 2024, and $24,900 for 2025.