Income Taxes (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 16, 2020	Jun. 18, 2019	Jun. 16, 2020	Jun. 18, 2019	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Effective income tax rates (percent)	123.80%	27.70%	2.80%	27.80%
Provision (benefit) for income taxes	$ 3,001,000	$ 800,000	$ (2,990,000)	$ 1,354,000
Impairment of non-tax deductible goodwill			87,300,000
Goodwill reclassified from held for sale			3,517,000
Valuation allowance	$ 0		$ 0		$ 0