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Other Assets | 3 Months Ended
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Apr. 30, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |
Other Assets | Other Assets Other assets consisted of the following (in thousands):
| April 30, 2019 |  | January 31, 2019
Non-marketable equity and other investments | $ | 52,879 |  |  | $ | 50,546 |
Prepayments for computing infrastructure platforms | 14,510 |  |  | 16,976 |
Technology patents and other intangible assets, net | 19,519 |  |  | 20,335 |
Deposits | 5,370 |  |  | 4,383 |
Net deferred tax assets | 4,504 |  |  | 4,544 |
Other | 43,686 |  |  | 50,576 |
Total | $ | 140,468 |  |  | $ | 147,360 |
Technology patents and other intangible assets with estimable useful lives are amortized on a straight-line basis. As of April 30, 2019, the future estimated amortization expense is as follows (in thousands):
Fiscal period: |
Remainder of 2020 | $ | 2,438 |
2021 | 2,926 |
2022 | 2,512 |
2023 | 2,246 |
2024 | 1,943 |
Thereafter | 7,454 |
Total | $ | 19,519 |

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