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Goodwill and Intangible Assets
 9 Months Ended
Oct. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets Goodwill and Intangible Assets
Goodwill
The carrying amounts of goodwill by applicable reporting unit were as follows:
(in thousands)Signal IntegrityWireless and SensingProtectionTotal
Balance at January 30, 2022$274,085 $72,128 $4,928 $351,141 
Reduction— (835)— $(835)
Balance at October 30, 2022$274,085 $71,293 $4,928 $350,306 
Goodwill is not amortized, but is tested for impairment at the reporting unit level using either a qualitative or quantitative assessment on an annual basis during the fourth quarter of each fiscal year, and whenever events or changes in circumstances indicate that the carrying value may not be recoverable. Impairment of goodwill is measured at the reporting unit level by comparing the reporting unit’s carrying amount, including goodwill, to the fair market value of the reporting unit. The reporting units are the same as the operating segments, which have been aggregated into two reportable segments (see Note 15 on segment information). As of October 30, 2022, there was no indication of impairment of the Company's goodwill balances. As a result of the divestiture of the Disposal Group during the nine months ended October 30, 2022, the Company recorded a reduction to its goodwill of $0.8 million based on the relative fair value of the Disposal Group and the portion of the Wireless and Sensing reporting unit that will be retained. See Note 2, Acquisition and Divestiture, for additional information.
Purchased Intangibles
The following table sets forth the Company’s finite-lived intangible assets resulting from business acquisitions and technology licenses purchased, which are amortized over their estimated useful lives:
 October 30, 2022January 30, 2022
(in thousands, except estimated useful life)Estimated
Useful Life		Gross
Carrying
Amount		Accumulated
Amortization		Net Carrying
Amount		Gross
Carrying
Amount		Accumulated
Amortization		Net Carrying
Amount
Core technologies
6-8 years
$22,300 $(18,592)$3,708 $26,300 $(19,496)$6,804 
Total finite-lived intangible assets$22,300 $(18,592)$3,708 $26,300 $(19,496)$6,804 
Amortization expense of finite-lived intangible assets recorded in the Statements of Income for each period was as follows:
Three Months EndedNine Months Ended
(in thousands)October 30, 2022October 31, 2021October 30, 2022October 31, 2021
Core technologies$1,000 $1,298 $3,096 $3,894 
Total amortization expense$1,000 $1,298 $3,096 $3,894 
Future amortization expense of finite-lived intangible assets is expected as follows:
(in thousands)
Fiscal Year Ending:
2023 (remaining three months)$906 
20241,676 
2025288 
2026288 
2027288 
Thereafter262 
Total expected amortization expense$3,708