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Acquisition-related Intangible Assets, Net (Tables)
12 Months Ended
Jan. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Acquired Assets
Acquisition-related intangible assets, net consisted of the following (in thousands):
 
January 31,
 
2019
 
2018
Developed technology
$
186,800

 
$
69,700

Customer relationships
189,000

 
1,000

Trade name
12,000

 

Backlog
11,000

 


398,800

 
70,700

Less accumulated amortization
(85,560
)
 
(36,466
)
Acquisition-related intangible assets, net
$
313,240

 
$
34,234

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense
As of January 31, 2019, our future estimated amortization expense related to acquisition-related intangible assets is as follows (in thousands):
Fiscal Period:
 
2020
$
68,856

2021
48,142

2022
43,733

2023
41,009

2024
29,833

Thereafter
81,667

Total
$
313,240

As of January 31, 2019, the future estimated amortization expense is as follows (in thousands):
Fiscal Period:
 
2020
$
3,360

2021
3,031

2022
2,617

2023
2,351

2024
2,049

Thereafter
16,392

Total
$
29,800