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Goodwill and Intangible Assets | 6 Months Ended
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Jul. 31, 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 30, 2022 | $ | 274,085 |  |  | $ | 72,128 |  |  | $ | 4,928 |  |  | $ | 351,141 |
Reduction | — |  |  | (835) |  |  | — |  |  | (835) |
Balance at July 31, 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. As of July 31, 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 six months ended July 31, 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:
|  |  | July 31, 2022 |  | January 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 |  | $ | 26,300 |  |  | $ | (21,592) |  |  | $ | 4,708 |  |  | $ | 26,300 |  |  | $ | (19,496) |  |  | $ | 6,804 |
Total finite-lived intangible assets |  |  | $ | 26,300 |  |  | $ | (21,592) |  |  | $ | 4,708 |  |  | $ | 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 Ended |  | Six Months Ended
(in thousands) | July 31, 2022 |  | August 1, 2021 |  | July 31, 2022 |  | August 1, 2021
Core technologies | $ | 1,048 |  |  | $ | 1,298 |  |  | $ | 2,096 |  |  | $ | 2,596 |
Total amortization expense | $ | 1,048 |  |  | $ | 1,298 |  |  | $ | 2,096 |  |  | $ | 2,596 |
Future amortization expense of finite-lived intangible assets is expected as follows:
(in thousands) |  |  |  |  |
Fiscal Year Ending: |  |  |  |  |
2023 (remaining six months) | $ | 1,906 |  |  |  |  |
2024 | 1,676 |  |  |  |  |
2025 | 288 |  |  |  |  |
2026 | 288 |  |  |  |  |
2027 | 288 |  |  |  |  |
Thereafter | 262 |  |  |  |  |
Total expected amortization expense | $ | 4,708 |  |  |  |  |

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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 https://asc.fasb.org/topic&trid=2144416 + Details
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