Leases Lease Disclosure (Details)	12 Months Ended
Dec. 30, 2018 number_of_restaurants Property
Property Subject to or Available for Operating Lease
Number of Restaurants	6,711
Minimum
Property Subject to or Available for Operating Lease
Lessee, Operating Lease, Term of Contract	15 years
Maximum
Property Subject to or Available for Operating Lease
Lessee, Operating Lease, Term of Contract	20 years
Lessee Disclosure \| Minimum
Property Subject to or Available for Operating Lease
Lessee, Operating Lease, Term of Contract	15 years
Lessee Disclosure \| Maximum
Property Subject to or Available for Operating Lease
Lessee, Operating Lease, Term of Contract	20 years
Lessee Disclosure \| Land and Building
Property Subject to or Available for Operating Lease
Property Subject to or Available for Operating Lease, Number of Units \| Property	144
Lessee Disclosure \| Property Subject to Operating Lease \| Land and Building
Property Subject to or Available for Operating Lease
Property Subject to or Available for Operating Lease, Number of Units	64
Lessee Disclosure \| Property Subject to Operating Lease \| Land
Property Subject to or Available for Operating Lease
Property Subject to or Available for Operating Lease, Number of Units	145
Lessor Disclosure
Property Subject to or Available for Operating Lease
Lessor, Operating Lease, Term of Contract	20 years
Lessor Disclosure \| Property Subject to Operating Lease
Property Subject to or Available for Operating Lease
Property Subject to or Available for Operating Lease, Number of Units	1,279
Lessor Disclosure \| Property Subject to Operating Lease \| Assets Leased to Others
Property Subject to or Available for Operating Lease
Property Subject to or Available for Operating Lease, Number of Units	516
Entity Operated Units
Property Subject to or Available for Operating Lease
Number of Restaurants	353

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980

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Term of the lessor's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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