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Basis of Presentation and Significant Accounting Policies - Additional Information (Details) - USD ($)		9 Months Ended	12 Months Ended
	Dec. 29, 2018	Sep. 27, 2019	Dec. 28, 2018
Vendor Concentration Risk | Consolidated Accounts Payable
Organization And Description Of Business And Accounting Policies [Line Items]
Concentration risk, percentage		13.00%
Vendor Concentration Risk | Maximum | Consolidated Accounts Payable
Organization And Description Of Business And Accounting Policies [Line Items]
Concentration risk, percentage			10.00%
Accounting Standards Update 2016-02
Organization And Description Of Business And Accounting Policies [Line Items]
Cumulative adjustment accumulated deficit	$ 113,000
Accounting Standards Update 2018-07
Organization And Description Of Business And Accounting Policies [Line Items]
Cumulative adjustment accumulated deficit	$ 315,000

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Organization And Description Of Business And Accounting Policies [Line Items]

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount of the cumulative effect on retained earnings net of related income tax effect.

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