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Unrecognized Tax Benefits, Competent Authority Benefits Reversed

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Unrecognized Tax Benefits, Indemnification Receivable

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Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

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

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign tax credit carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible general business tax credit carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research tax credit carryforwards.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Amount of unrecognized tax benefits.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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Amount of interest expense 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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Income Taxes - Narrative (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Income Taxes - Narrative (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 29, 2024	Dec. 31, 2023	Jan. 01, 2023	Jan. 02, 2022
Income Taxes Disclosure [Line Items]
Valuation allowance for deferred tax assets	$ 274.7	$ 142.4	$ 274.7	$ 251.3	$ 2.3
Operating loss carryforwards, state and local		623.1
Research & development expenses	75.9	95.7	75.9
Federal foreign tax credits		2.2
Unrecognized tax benefits	28.8	183.9	28.8	40.0	$ 17.7
Unrecognized tax benefits that would impact effective tax rate	21.6	16.3	21.6	28.3
Decrease in unrecognized tax benefits is reasonably possible		5.1
Unrecognized tax benefits, income tax penalties and interest accrued	4.0	1.6	4.0
Interest expense, net of accrued interest reversed		(2.4)	$ (4.3)	$ 0.3
Unrecognized tax benefits, released	19.9
Unrecognized tax benefits, competent authority benefits reversed	$ 5.4
Indemnification receivable		3.2
Domestic
Income Taxes Disclosure [Line Items]
Operating loss carryforwards		856.8
Foreign
Income Taxes Disclosure [Line Items]
Operating loss carryforwards		245.7
Subject to expiration through 2037 \| Domestic
Income Taxes Disclosure [Line Items]
Operating loss carryforwards		345.0
Not subject to expiration \| Domestic
Income Taxes Disclosure [Line Items]
Operating loss carryforwards		511.8
Not subject to expiration \| Foreign
Income Taxes Disclosure [Line Items]
Operating loss carryforwards		203.8
Subject to expiration through 2040 \| Foreign
Income Taxes Disclosure [Line Items]
Operating loss carryforwards		41.9
Domestic
Income Taxes Disclosure [Line Items]
Research & development expenses		29.8
Gross State Research Credits
Income Taxes Disclosure [Line Items]
Research & development expenses		20.0
Business credit carryforwards		$ 25.6