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Revenue Disaggregation of Revenue (Details) - USD ($) | 4 Months Ended
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Jan. 17, 2021 | Jan. 19, 2020
Disaggregation of Revenue [Line Items] |  |
Initial franchise fee | $ 50,000 |
Royalty and marketing fee, percent of gross sales | 5.00% |
Revenues | $ 338,541,000 | $ 307,673,000
Company Restaurant Sales |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 114,278,000 | 105,364,000
Franchise Rental Revenues |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 103,749,000 | 96,084,000
Franchise Royalties |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 57,343,000 | 50,243,000
Marketing Fees |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 55,776,000 | 48,835,000
Technology and Sourcing Fees |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 5,090,000 | 4,924,000
Franchise Fees and Other Services |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | $ 2,305,000 | $ 2,223,000

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(1)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
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