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Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands | Jan. 30, 2021 | Aug. 01, 2020 | Aug. 04, 2019
--- | --- | --- | ---
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Refund reserve | $ 9,000 | $ 5,000 |
Operating lease, right-of-use assets | 130,291 | 132,615 |
Current operating lease liabilities | 25,718 | 24,333 |
Noncurrent operating lease liabilities | 134,341 | $ 140,175 |
Accounting Standards Update 2016-02 |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Operating lease, right-of-use assets |  |  | $ 133,000
Deferred rent previously recorded |  |  | 25,700
Current operating lease liabilities |  |  | 22,000
Noncurrent operating lease liabilities |  |  | $ 136,700
Prepaid Expenses and Other Current Assets |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Interest receivable | $ 1,000 |  |

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- Definition The cumulative difference between the rental payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense over the term of the leased property by the lessor or lessee, respectively. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121549951&loc=d3e39896-112707 + Details
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977 + Details
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