Intangible Assets (Tables)
 3 Months Ended
Apr. 30, 2019
Goodwill And Intangible Assets Disclosure [Abstract]  
Summary of Carrying Amounts of Intangible Assets

The carrying amounts of intangible assets as of April 30, 2019 and January 31, 2019 were as follows:

 

 

 

As of April 30, 2019

 

 

As of January 31, 2019

 

 

 

Gross Carrying Amount

 

 

Accumulated Amortization

 

 

Net Carrying Amount

 

 

Gross Carrying Amount

 

 

Accumulated Amortization

 

 

Net Carrying Amount

 

 

 

(in thousands)

 

In-process research and development

 

$

4,100

 

 

$

—

 

 

$

4,100

 

 

$

4,100

 

 

$

—

 

 

$

4,100

 

Internal-use software licenses

 

 

14,955

 

 

 

(8,921

)

 

 

6,034

 

 

 

14,448

 

 

 

(7,612

)

 

 

6,836

 

Total acquired intangible assets

 

$

19,055

 

 

$

(8,921

)

 

$

10,134

 

 

$

18,548

 

 

$

(7,612

)

 

$

10,936

 
Summary of Estimated Future Amortization Expense of Software Licenses The estimated future amortization expense of these software licenses as of April 30, 2019 is as follows:

 

 

As of

 

 

 

April 30, 2019

 

Fiscal Year

 

(in thousands)

 

2020 (9 months  remaining)

 

$

3,813

 

2021

 

 

1,853

 

2022

 

 

368

 

2023

 

 

—

 

2024

 

 

—

 

Thereafter

 

 

—

 

Total future amortization expenses:

 

$

6,034