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Goodwill and Intangible Assets | 3 Months Ended
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May 02, 2021
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 May 2, 2021 | $ | 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. The recoverability 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. As of May 2, 2021, there was no indication of impairment of the Company's goodwill balances. 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:
|  |  | May 2, 2021 |  | January 31, 2021
(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 | 3-8 years |  | $ | 29,300 |  |  | $ | (18,852) |  |  | $ | 10,448 |  |  | $ | 29,300 |  |  | $ | (17,554) |  |  | $ | 11,746 |
Total finite-lived intangible assets |  |  | $ | 29,300 |  |  | $ | (18,852) |  |  | $ | 10,448 |  |  | $ | 29,300 |  |  | $ | (17,554) |  |  | $ | 11,746 |
Amortization expense of finite-lived intangible assets recorded in the Statements of Income for each period was as follows:
| Three Months Ended |  |
(in thousands) | May 2, 2021 |  | April 26, 2020 |  |  |  |
Core technologies | $ | 1,298 |  |  | $ | 2,473 |  |  |  |  |
Customer relationships | — |  |  | 367 |  |  |  |  |
Total amortization expense | $ | 1,298 |  |  | $ | 2,840 |  |  |  |  |
Future amortization expense of finite-lived intangible assets is expected as follows:
(in thousands) |  |  |  |  |
Fiscal Year Ending: |  |  |  |  |
Fiscal year 2022 (remaining nine months) | $ | 3,644 |  |  |  |  |
Fiscal year 2023 | 4,002 |  |  |  |  |
Fiscal year 2024 | 1,676 |  |  |  |  |
Fiscal year 2025 | 288 |  |  |  |  |
Fiscal year 2026 | 288 |  |  |  |  |
Thereafter | 550 |  |  |  |  |
Total expected amortization expense | $ | 10,448 |  |  |  |  |

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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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