v3.20.2
Goodwill and Acquired Intangible Assets, Net (Tables)
 9 Months Ended
Oct. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Finite-Lived Intangible Assets by Major Class As of October 31, 2020 and February 1, 2020, net carrying amounts are as follows (in thousands, except for weighted-average remaining amortization period):
October 31, 2020
Gross Carrying AmountsAccumulated AmortizationNet Carrying AmountsWeighted-Average Remaining Amortization Period (Years)
Developed technologies$2,441,000 $(640,888)$1,800,112 5.78
Customer contracts and related relationships643,000 (203,868)439,132 5.87
Trade names23,000 (12,862)10,138 2.37
Total acquired amortizable intangible assets$3,107,000 $(857,618)$2,249,382 5.78
IPR&D131,000 — 131,000 n/a
Total acquired intangible assets$3,238,000 $(857,618)$2,380,382 

The Company regularly analyzes the results of its business to determine whether events or circumstances exist that indicate whether the carrying amount of the intangible assets may not be recoverable. During the second quarter ended August 1, 2020, impairment charges of $50.3 million related to certain intangible assets acquired from Cavium were recognized as part of restructuring actions. The gross carrying amounts and the accumulated amortization of those impaired intangible assets were excluded from the table above. See “Note 5 - Restructuring” for additional information.
February 1, 2020
Gross Carrying AmountsAccumulated AmortizationNet Carrying AmountsWeighted-Average Remaining Amortization Period (Years)
Developed technologies$2,511,000 $(413,735)$2,097,265 6.41
Customer contracts and related relationships643,000 (128,939)514,061 6.61
Trade names23,000 (8,726)14,274 2.96
Total acquired amortizable intangible assets$3,177,000 $(551,400)$2,625,600 6.43
IPR&D139,000 — 139,000 n/a
Total acquired intangible assets$3,316,000 $(551,400)$2,764,600 
Schedule of Indefinite-Lived Intangible Assets
October 31, 2020
Gross Carrying AmountsAccumulated AmortizationNet Carrying AmountsWeighted-Average Remaining Amortization Period (Years)
Developed technologies$2,441,000 $(640,888)$1,800,112 5.78
Customer contracts and related relationships643,000 (203,868)439,132 5.87
Trade names23,000 (12,862)10,138 2.37
Total acquired amortizable intangible assets$3,107,000 $(857,618)$2,249,382 5.78
IPR&D131,000 — 131,000 n/a
Total acquired intangible assets$3,238,000 $(857,618)$2,380,382 

The Company regularly analyzes the results of its business to determine whether events or circumstances exist that indicate whether the carrying amount of the intangible assets may not be recoverable. During the second quarter ended August 1, 2020, impairment charges of $50.3 million related to certain intangible assets acquired from Cavium were recognized as part of restructuring actions. The gross carrying amounts and the accumulated amortization of those impaired intangible assets were excluded from the table above. See “Note 5 - Restructuring” for additional information.
February 1, 2020
Gross Carrying AmountsAccumulated AmortizationNet Carrying AmountsWeighted-Average Remaining Amortization Period (Years)
Developed technologies$2,511,000 $(413,735)$2,097,265 6.41
Customer contracts and related relationships643,000 (128,939)514,061 6.61
Trade names23,000 (8,726)14,274 2.96
Total acquired amortizable intangible assets$3,177,000 $(551,400)$2,625,600 6.43
IPR&D139,000 — 139,000 n/a
Total acquired intangible assets$3,316,000 $(551,400)$2,764,600 
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense
The following table presents the estimated future amortization expense of acquired amortizable intangible assets as of October 31, 2020 (in thousands):
Fiscal YearAmount
Remainder of 2021$109,433 
2022428,015 
2023414,937 
2024393,863 
2025354,012 
Thereafter549,122 
$2,249,382