Revenues Contract Balance (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 25, 2019	Dec. 26, 2018
Contract With Customer Liability [Roll Forward]
Balance, December 26, 2018	$ 20,538
Fees received from franchisees	5,634
Revenue recognized	(2,916)
Balance, December 25, 2019	23,256	$ 20,538
Less current portion included in other current liabilities	2,235
Deferred franchise revenue included in other noncurrent liabilities	21,021
Revenue recognized included in beginning deferred franchise revenue balance		2,500
Gift Card Redemption
Contract With Customer Liability [Roll Forward]
Less current portion included in other current liabilities	6,500	$ 6,500
Revenue recognized included in beginning deferred franchise revenue balance	$ 1,400

Contract With Customer Liability [Roll Forward]

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

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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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