Goodwill and Intangible Assets (Tables)

3 Months Ended

Apr. 26, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

he carrying amounts of goodwill by applicable reporting unit were as follows:



(in thousands)	Signal Integrity		Wireless and Sensing		Protection		Total
Balance at January 26, 2020	$	274,085	$	72,128	$	4,928	$	351,141
Balance at April 26, 2020	$	274,085	$	72,128	$	4,928	$	351,141

Schedule of Finite-lived Intangible Assets Acquired

The following table sets forth the Company’s finite-lived intangible assets resulting from business acquisitions, which are amortized over their estimated useful lives:



		April 26, 2020							January 26, 2020
(in thousands)	Estimated Useful Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Core technologies	3-8 years	$	43,300	$	(26,350	)	$	16,950	$	82,857	$	(63,434	)	$	19,423
Customer relationships	3 years	4,000		(3,778		)	222		6,000		(5,411		)	589
Total finite-lived intangible assets		$	47,300	$	(30,128	)	$	17,172	$	88,857	$	(68,845	)	$	20,012

Amortization expense of finite-lived intangible assets recorded in the Statements of Income for each period was as follows:



	Three Months Ended
(in thousands)	April 26, 2020		April 28, 2019
Core technologies	$	2,473	$	4,160
Customer relationships	367		983
Total amortization expense	$	2,840	$	5,143

Schedule of Future Amortization of Intangible Asset

Future amortization expense of finite-lived intangible assets is expected as follows:



(in thousands)
Fiscal Year Ending:	Core Technologies		Customer Relationships		Total
Fiscal year 2021 (remaining nine months)	$	5,204	$	222	$	5,426
Fiscal year 2022	4,942		—		4,942
Fiscal year 2023	4,002		—		4,002
Fiscal year 2024	1,676		—		1,676
Fiscal year 2025	287		—		287
Thereafter	839		—		839
Total expected amortization expense	$	16,950	$	222	$	17,172