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Financial Instruments - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
May 02, 2020 | Oct. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items] |  |
Hedge of diesel fuel requirement, remainder of fiscal year 2021 |  | 40.00%
Hedge of diesel fuel requirement, first three months of fiscal year 2022 |  | 41.00%
Foreign currency exchange contracts |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gain on derivatives settlement | $ 24.8 |
Term of derivative contracts |  | 30 days

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- Definition Hedge Diesel Fuel Requirement, Remainder of Fiscal Year + References No definition available. + Details
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- Definition Hedge Diesel Fuel Requirement, Second Year + References No definition available. + Details
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- Definition Amount of increase in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Details
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