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Debt - Convertible Note Hedge and Warrant Transactions (Details) - USD ($) $ / shares in Units, shares in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jan. 30, 2021 | Jan. 30, 2021 | Jan. 25, 2020 | Jan. 26, 2019 | Sep. 15, 2015
Debt Instrument [Line Items] |  |  |  |  |
Proceeds from borrowings on senior credit agreement, including term loans |  | $ 1,056,000,000 | $ 475,000,000 | $ 423,188,000 |
Convertible Note Hedge |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, convertible, conversion price (per share) |  |  |  |  | $ 96.89
0.75% Convertible Senior Notes Due 2021 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, face amount | $ 58,264,000 | 58,264,000 | 460,000,000 |  | $ 485,000,000.0
Debt instrument, convertible, conversion price (per share) |  |  |  |  | $ 96.89
Proceeds from borrowings on senior credit agreement, including term loans | $ 25,000,000.0 | $ 401,700,000 |  |  |
Warrant Transaction |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Proceeds from borrowings on senior credit agreement, including term loans |  |  | $ 25,000,000 |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (shares) |  |  | 5,006 |  | 601
Class of warrant or right, exercise price of warrants or rights (per warrant) |  |  |  |  | $ 130.43

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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 + Details
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- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 + Details
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- Definition The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details
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