Revenues - Contract Balances (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2021	Dec. 30, 2020
Movement in Deferred Revenue [Roll Forward]
Balance, December 30, 2020	$ 20,806
Fees received from franchisees	114
Revenue recognized	(563)
Balance, March 31, 2021	20,357	$ 20,806
Less current portion included in other current liabilities	1,972
Deferred franchise revenue included in other noncurrent liabilities	$ 18,385
Deferred revenue recognized		$ 600

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable.

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