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Acquisition-Related Intangible Assets, Net (Tables)
 6 Months Ended
Jul. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Acquired Assets
Acquisition-related intangible assets, net consisted of the following (in thousands):
July 31, 2021January 31, 2021
Developed technology$312,400 $218,400 
Customer relationships295,000 223,000 
Trade name12,500 12,000 
Backlog15,000 11,000 
Acquisition-related intangible assets, gross634,900 464,400 
Less accumulated amortization(253,508)(215,774)
Acquisition-related intangible assets, net$381,392 $248,626 
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense
As of July 31, 2021, our future estimated amortization expense related to acquisition-related intangible assets was as follows (in thousands):
Fiscal Period:
Remainder of 2022$39,090 
202375,823 
202464,605 
202551,950 
202647,172 
Thereafter102,752 
Total$381,392 
As of July 31, 2021, the future estimated amortization expense was as follows (in thousands):
Fiscal Period:
Remainder of 2022$1,454 
20232,688 
20242,380 
20251,900 
20261,636 
Thereafter6,202 
Total$16,260