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Goodwill and Intangible Assets | 12 Months Ended
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Jan. 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 Integrity |  | Wireless and Sensing |  | Protection |  | Total
Balance at January 31, 2021 | $ | 274,085 |  |  | $ | 72,128 |  |  | $ | 4,928 |  |  | $ | 351,141 |
Balance at January 30, 2022 | $ | 274,085 |  |  | $ | 72,128 |  |  | $ | 4,928 |  |  | $ | 351,141 |
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). For fiscal years 2022 and 2021, the Company performed a qualitative assessment and concluded that it was more likely than not that the fair value of each of the three reporting units exceeded its carrying value. For fiscal year 2020, the Company performed a quantitative assessment that demonstrated that the fair value of the reporting units was higher than their respective carrying values. As of January 30, 2022 and January 31, 2021, there were no indications of impairment of the Company's goodwill balances, and no impairment to goodwill was recorded during fiscal years 2022, 2021 or 2020. 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:
|  |  | January 30, 2022 |  | January 31, 2021
(in thousands) | Estimated Useful Life |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Core technologies | 6-8 years |  | $ | 26,300 |  |  | $ | (19,496) |  |  | $ | 6,804 |  |  | $ | 29,300 |  |  | $ | (17,554) |  |  | $ | 11,746 |
Total finite-lived intangible assets |  |  | $ | 26,300 |  |  | $ | (19,496) |  |  | $ | 6,804 |  |  | $ | 29,300 |  |  | $ | (17,554) |  |  | $ | 11,746 |
Amortization expense of finite-lived intangible assets, which was recorded in "Intangible Amortization" in the Statements of Income, was as follows:
(in thousands) | January 30, 2022 |  | January 31, 2021 |  | January 26, 2020
Core technologies | $ | 4,942 |  |  | $ | 7,676 |  |  | $ | 14,263 |
Customer relationships | — |  |  | 589 |  |  | 2,283 |
Total amortization expense | $ | 4,942 |  |  | $ | 8,265 |  |  | $ | 16,546 |
Future amortization expense of finite-lived intangible assets is expected as follows:
(in thousands) |  |  |  |  |  |  |
To be recognized in: |  |  |  |  |  |  | Total
Fiscal year 2023 |  |  |  |  |  |  | $ | 4,002 |
Fiscal year 2024 |  |  |  |  |  |  | 1,676 |
Fiscal year 2025 |  |  |  |  |  |  | 288 |
Fiscal year 2026 |  |  |  |  |  |  | 288 |
Fiscal year 2027 |  |  |  |  |  |  | 288 |
Thereafter |  |  |  |  |  |  | 262 |
Total expected amortization expense |  |  |  |  |  |  | $ | 6,804 |

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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