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Provision For Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Jan. 01, 2021	Jan. 03, 2020	Dec. 28, 2018
Income Tax Examination [Line Items]
Valuation allowance	$ 70,068	$ 67,185
Valuation allowance increase (decrease)	2,900	5,500
Unrecognized tax benefits	83,583	$ 80,941	$ 79,078	$ 76,060
Unrecognized tax benefits that would reduce income tax provision and effective tax rate	52,600
Federal
Income Tax Examination [Line Items]
Research and development tax credits	101,000
State and Local Jurisdiction
Income Tax Examination [Line Items]
Net operating loss carryforwards	426,000
State and Local Jurisdiction | Research Tax Credit Carryforward
Income Tax Examination [Line Items]
Research and development tax credits	45,000
Tax credit carryforward amount with expiration dates	$ 2,000

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

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