Commitments and Contingencies	6 Months Ended
	Jun. 24, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and ContingenciesWe have guarantees related to certain franchisee loans. Payments under these guarantees would result from the inability of a franchisee to fund required payments when due. Through June 24, 2020, no events had occurred that caused us to make payments under these guarantees. There were $0.4 million and $0.6 million of loans outstanding under these programs as of June 24, 2020 and December 25, 2019, respectively. As of June 24, 2020, the maximum amount payable under the loan guarantees was $0.4 million. As a result of these guarantees, we have recorded liabilities of less than $0.1 million as of both June 24, 2020 and December 25, 2019, which are included as a component of other noncurrent liabilities in our Condensed Consolidated Balance Sheets and other nonoperating expense (income), net in our Condensed Consolidated Statements of Operations. There are various claims and pending legal actions against or indirectly involving us, incidental to and arising out of the ordinary course of the business. In the opinion of management, based upon information currently available, the ultimate liability with respect to these proceedings and claims will not materially affect our consolidated results of operations or financial position.