Revenue Recognition - Contract Liabilities (Details) $ in Thousands	4 Months Ended
	Dec. 16, 2020 USD ($)
Gift Cards, net of discounts
Revenue From Contract With Customer, Contract Liability [Roll Forward]
Contract liability, beginning of period	$ 2,880
Revenue recognized that was included in the contract liability balance at the beginning of the year	(1,011)
Increase, net of amounts recognized as revenue during the period	1,541
Contract liability, end of period	3,410
Franchise Fees
Revenue From Contract With Customer, Contract Liability [Roll Forward]
Contract liability, beginning of period	1,287
Revenue recognized that was included in the contract liability balance at the beginning of the year	(128)
Increase, net of amounts recognized as revenue during the period	0
Contract liability, end of period	$ 1,159