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Acquisitions - Purchase Price Allocation (Details) - USD ($) $ in Thousands | Jan. 27, 2019 | Jan. 31, 2021 | Jan. 26, 2020 | Aug. 17, 2018
--- | --- | --- | --- | ---
Business Acquisition [Line Items] |  |  |  |
Goodwill |  | $ 351,141 | $ 351,141 |
Trackio International AG |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Finite-lived intangible asset | $ 3,000 |  |  | $ 3,000
Goodwill | 4,316 |  |  | $ 4,300
Other assets (liabilities), net | 1,184 |  |  |
Total consideration | $ 8,500 |  |  |
Core technologies | Trackio International AG |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Estimated useful life | 3 years |  |  |

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