REFRANCHISING - Schedule of Gain on Refranchising Restaurant Costs and Expenses (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 27, 2022	Mar. 28, 2021
Restaurant sales \| Assets classified as held for sale
Long Lived Assets Held-for-sale [Line Items]
Restaurant costs and expenses, net of revenue	$ 0.5	$ 0.4

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_LongLivedAssetsHeldForSaleLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration