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Operating (Gains), Losses and Other Charges, Net Narrative (Details) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 24, 2020 USD ($) real_estate restaurant | Jun. 26, 2019 USD ($) parcel restaurant | Jun. 24, 2020 USD ($) restaurant parcel real_estate | Jun. 26, 2019 USD ($) restaurant parcel | Dec. 25, 2019 USD ($) restaurant real_estate
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Gains on sales of assets and other, net | $ (12) | $ 26,839 | $ 1,058 | $ 36,314 |
Number of restaurants | restaurant | 1,683 |  | 1,683 |  |
Exit cost liabilities | $ 200 |  | $ 200 |  | $ 200
Severance and other restructuring charges | 1,600 |  | 1,600 |  | 900
Impairment charges | 0 | $ 0 | 2,181 | $ 0 |
Property impairment |  |  | 1,100 |  |
Operating lease right-of-use asset impairment |  |  | 1,000 |  |
Impairment of franchisee rights (less than) |  |  | $ 100 |  |
Number of restaurants reclassified out of held for sale | restaurant |  |  | 4 |  |
Real Estate |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Number of real estate properties sold | parcel |  | 3 | 2 | 4 |
Gains on sales of assets and other, net |  | $ 3,100 |  | $ 10,600 |
Company restaurant sales |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Gains on sales of assets and other, net |  | $ 24,200 |  | $ 26,400 |
Number of restaurants sold | restaurant |  | 37 |  | 40 |
Held-for-sale |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Carrying amount | 2,000 |  | $ 2,000 |  | 1,900
Property | 1,700 |  | 1,700 |  | 1,600
Other assets | $ 300 |  | $ 300 |  | $ 200
Number of real estate properties | real_estate | 5 |  | 5 |  | 2
Goodwill |  |  |  |  | $ 100
Number of restaurants | restaurant |  |  |  |  | 4
Disposed of by sale |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Number of real estate properties sold | real_estate |  |  | 2 |  |

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