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Accrued Insurance Claims - Narratives (Details) | 6 Months Ended |
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Jul. 31, 2021 USD ($) state | Jan. 25, 2020 USD ($)
Accrued Insurance Claims [Line Items] |  |
Insurance Liability, Annual Retained Risk of Loss, Under Employee Health Plan Per Participant, Maximum Threshold | $ 475,000 |
Number of states with state-sponsored insurance fund | state | 2 |
Decrease in accrued insurance claims | $ 4,200,000 |
Insurance Coverage Treshold Per Policy | 5,000,000 |
Threshold One |  |
Accrued Insurance Claims [Line Items] |  |
Retained risk of loss, general liability and workers' compensation, maximum automobile liability | 1,000,000 |
Threshold Two |  |
Accrued Insurance Claims [Line Items] |  |
Aggregate stop loss coverage for automobile liability, general liability, and workers' compensation claims before adjustment | 11,500,000 |
Maximum |  |
Accrued Insurance Claims [Line Items] |  |
Insurance liability, annual retained risk loss | 600,000 | $ 450,000
Maximum | Threshold Three |  |
Accrued Insurance Claims [Line Items] |  |
Insurance Coverage Threshold Per Policy | 30,000,000 |
Minimum | Threshold Three |  |
Accrued Insurance Claims [Line Items] |  |
Insurance Coverage Threshold Per Policy | $ 10,000,000 |

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- Definition Aggregate Stop Loss Coverage for Automobile Liability, General Liability, and Workers' Compensation Claims Before Adjustment Increase + References No definition available. + Details
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- Definition The maximum retained risk of loss per occurrence for automobile liability. + References No definition available. + Details
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- Definition Insurance Coverage Threshold Per Policy + References No definition available. + Details
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- Definition Insurance Coverage Treshold Per Policy + References No definition available. + Details
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- Definition Annual retained risk of loss under the employee health plan. + References No definition available. + Details
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- Definition Insurance Liability, Annual Retained Risk of Loss, Under Employee Health Plan Per Participant, Maximum Threshold + References No definition available. + Details
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- Definition Number of States with State-Sponsored Insurance Fund + References No definition available. + Details
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- Definition The increase (decrease) in insurance liability balances during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
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