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Revenues Disaggregation of Revenues (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 27, 2018 | Jun. 28, 2017 | Jun. 27, 2018 | Jun. 28, 2017
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Company restaurant sales | $ 102,741 | $ 98,355 |  | $ 203,934 | $ 192,134 |
Franchise and license revenue | 54,593 | 35,021 |  | 108,673 | 69,152 |
Total operating revenue | 157,334 | 133,376 | [1] | 312,607 | 261,286 | [1]
Sales Channel, Directly to Consumer [Member] |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Company restaurant sales | 102,741 | 98,355 | [1] | 203,934 | 192,134 | [1]
Sales Channel, Through Intermediary [Member] |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Franchise and license revenue | 54,593 | 35,021 | [1] | 108,673 | 69,152 | [1]
Royalties [Member] | Sales Channel, Through Intermediary [Member] |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Franchise and license revenue | 25,192 | 25,338 | [1] | 50,357 | 49,882 | [1]
Advertising [Member] | Sales Channel, Through Intermediary [Member] |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Franchise and license revenue | 19,530 | 0 | [1] | 38,840 | 0 | [1]
Initial and other fees [Member] | Sales Channel, Through Intermediary [Member] |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Franchise and license revenue | 1,810 | 588 | [1] | 3,227 | 1,072 | [1]
Occupancy [Member] | Sales Channel, Through Intermediary [Member] |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Franchise and license revenue | $ 8,061 | $ 9,095 | [1] | $ 16,249 | $ 18,198 | [1]
[1] | As disclosed in Note 2, prior period amounts have not been adjusted under the modified retrospective method of adoption of Topic 606.

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- Definition Revenue earned during the period from consideration (often a percentage of the franchisee's sales) received for the right to operate a business using the entity's name, merchandise, services, methodologies, promotional support, marketing, and supplies. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 952 -SubTopic 605 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68058139&loc=d3e68564-108043 + Details
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