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v3.21.2

Operating (Gains), Losses and Other Charges, Net - Narrative (Details) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 23, 2020 parcel | Sep. 29, 2021 USD ($) real_estate parcel | Sep. 23, 2020 parcel | Dec. 30, 2020 USD ($) real_estate
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Exit cost liabilities |  | $ 0.1 |  | $ 0.1
Severance and other restructuring charges |  | $ 0.3 |  | 0.6
Held-for-sale |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Carrying amount |  |  |  | $ 1.1
Number of real estate properties | real_estate |  | 2 |  | 2
Property |  | $ 1.6 |  | $ 1.0
Other assets |  |  |  | $ 0.1
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 | 1 | 5 |

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