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Other Assets - Schedule of Other Assets (Detail) - USD ($) $ in Thousands | Apr. 30, 2019 | Jan. 31, 2019
--- | --- | ---
Other Assets [Line Items] |  |
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 | 293,897 | 313,240
Deposits | 5,370 | 4,383
Net deferred tax assets | 4,504 | 4,544
Total | 140,468 | 147,360
Other | 43,686 | 50,576
Technology patents and other intangible assets, net |  |
Other Assets [Line Items] |  |
Technology patents and other intangible assets, net | $ 19,519 | $ 20,335

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