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Retirement plans - Narrative (Details) £ in Thousands, $ in Millions |  | 6 Months Ended
--- | --- | ---
Jul. 29, 2021 GBP (£) employee | Jul. 29, 2021 USD ($) employee | Jul. 31, 2021 USD ($)
Defined Contribution Plan [Line Items] |  |  |
Number of pension scheme members | employee | 1,909 | 1,909 |
Signet Group Limited | Pension scheme |  |  |
Defined Contribution Plan [Line Items] |  |  |
Defined benefit plan, expected future employer contributions, amount | £ 16,850 | $ 23.4 |
Defined benefit plan, initial contribution amount | £ 7,000 | $ 9.7 |
Minimum | Pension scheme |  |  |
Defined Contribution Plan [Line Items] |  |  |
Defined benefit plan, net periodic benefit cost, expected gain (loss) due to settlement |  |  | $ (125.0)
Maximum | Pension scheme |  |  |
Defined Contribution Plan [Line Items] |  |  |
Defined benefit plan, net periodic benefit cost, expected gain (loss) due to settlement |  |  | $ (150.0)

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- Definition Defined Benefit Plan, Expected Future Employer Contributions, Amount + References No definition available. + Details
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- Definition Defined Benefit Plan, Initial Contribution Amount + References No definition available. + Details
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- Definition Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Expected Gain (Loss) Due To Settlement + References No definition available. + Details
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- Definition Defined Benefit Plan, Number Of Pension Scheme Members + References No definition available. + 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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- Details
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- Details
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- Details
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- Details
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