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Balance Sheet Components - Schedule of Other Long-Term Assets (Details) - USD ($) $ in Thousands | Apr. 30, 2020 | Jan. 31, 2020
--- | --- | ---
Property Plant And Equipment [Line Items] |  |  |
Deposits, noncurrent |  | $ 2,772 | $ 2,726
Internally developed software costs, net of amortization | [1],[2] | 16,199 | 14,521
Other assets, noncurrent |  | 4,023 | 4,140
Other long-term assets |  | 33,419 | 31,981
On-premises software |  |  |
Property Plant And Equipment [Line Items] |  |  |
Internally developed software costs, net of amortization | [2],[3] | $ 10,425 | $ 10,594
[1] | Included in these amounts were $5.6 million and $5.0 million in capitalized stock-based compensation expense as April 30, 2020 and January 31, 2020, respectively.
[2] | The accumulated amortization of capitalized software costs in the aggregate was $3.6 million and $1.7 million as of April 30, 2020 and January 31, 2020, respectively. Amortization expense related to capitalized software was $1.9 million for the three months ended April 30, 2020 and was not material for the three months ended April 30, 2019.
[3] | The estimated useful lives of on-premises software range from three to four years.

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