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Stock-Based Compensation - Employee Stock Purchase Plan Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Jun. 29, 2021 | Jul. 31, 2021 | Jul. 31, 2020 | Jul. 31, 2021 | Jul. 31, 2020 | Jan. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Common stock, capital shares reserved for future issuance (in shares) |  | 87,302,259 |  | 87,302,259 |  | 212,779,276
Share price (in USD per share) |  | $ 35 |  | $ 35 |  |
Share-based payment arrangement, expense |  | $ 21,393 | $ 1,588 | $ 34,830 | $ 5,239 |
ESPP |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Common stock, capital shares reserved for future issuance (in shares) | 7,056,319 |  |  |  |  |
Expiration period | 10 years |  |  |  |  |
Percentage of outstanding stock, maximum | 1.00% |  |  |  |  |
Consecutive offering period | 6 months |  |  |  |  |
Consecutive purchase period | 6 months |  |  |  |  |
Maximum employee subscription rate | 85.00% |  |  |  |  |
Lookback period | 24 months |  |  |  |  |
Share-based payment arrangement, expense |  | 1,000 |  | 1,000 |  |
Amount withheld for future purchases |  | $ 2,600 |  | $ 2,600 |  |
Shares purchased for award (in shares) |  | 0 |  | 0 |  |

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Aggregate number of common shares reserved for future issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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