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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible capital loss carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the entity's investment in its wholly-owned subsidiaries.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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The amount the liability recorded for the income tax examination increased or decreased in the current year/accounting period.

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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.

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Amount of other income tax expense (benefit).

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Amount of unrecognized tax benefits.

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Amount of statutory penalties accrued for a tax position claimed or expected to be claimed by the entity, in its tax return.

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Amount of interest expense accrued for an underpayment of income taxes.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

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Income taxes - Narrative (Details) - USD ($) $ in Millions		12 Months Ended
Income taxes - Narrative (Details) - USD ($) $ in Millions	Dec. 27, 2023	Jan. 31, 2026	Feb. 01, 2025	Feb. 03, 2024	Jan. 28, 2023
Income Taxes [Line Items]
Bermuda statutory tax rate		15.00%	21.00%	21.00%
Deferred Tax Assets, Bermuda economic transition adjustment		$ 239.5	$ 263.3	$ 263.3
Amount of Bermuda deferred tax asset possibly recognizable due to two year limitation		52.7
Goodwill, Impairment Loss		53.6	272.5	0.0
Income tax examination, increase (decrease) in liability from prior year				(20.5)
Other Tax Expense (Benefit)				13.5
Net operating loss carryforwards		49.0	58.1
Capital loss carryforwards		12.5	11.3
Decrease in valuation allowance		(0.8)
Unrecognized tax benefits		28.6	28.1	$ 26.0	$ 85.9
Accrued interest related to unrecognized tax benefits		19.6
Accrued penalties		0.5
Increase resulting from settlements with taxing authorities		44.4
UNITED STATES
Income Taxes [Line Items]
Net operating loss carryforwards		27.5
Internal Revenue Service (IRS)
Income Taxes [Line Items]
Net operating loss carryforwards		14.5
Foreign Tax Jurisdiction
Income Taxes [Line Items]
Net operating loss carryforwards		21.5
Capital loss carryforwards		$ 12.5	$ 11.3
Bermuda
Income Taxes [Line Items]
Bermuda statutory tax rate	15.00%	15.00%	0.00%