Profit Sharing and 401(k) Plan (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Profit Sharing And 401 (k) Plan [Abstract]
Employee compensation deferral (as a percent)			50.00%
Employer contributions	$ 0.5	$ 1.5	$ 2.1	$ 3.0

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration