Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Mar. 31, 2020	Apr. 02, 2019	Dec. 29, 2020	Dec. 31, 2019
Income Taxes
Cash refunds of carryback claims	$ 36.0
U.S. federal statutory rate (as a percent)			21.00%	35.00%
Benefits reflected in annual effective tax rate (as percent)			14.00%
Tax credit carryforwards Period	20 years
Tax credit carryforwards			$ 30.0	$ 14.3
Deferred tax asset, impairment of goodwill	$ 17.2
Effective tax rate (as a percent)	28.90%	6.00%

The Percentage of benefit reflected In annual tax rate.

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- Definition

Tax credit carryforwards Period

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from intangible assets including goodwill.

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No definition available.

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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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- Definition

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

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Carrying amount as of the balance sheet date of income taxes previously overpaid to tax authorities (such as U.S. Federal, state and local tax authorities) representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Also called income tax refund receivable.

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The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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