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Share-Based Compensation - (Narrative) (Details) $ / shares in Units, shares in Thousands, $ in Millions | 12 Months Ended
--- | ---
Dec. 27, 2023 USD ($) installment $ / shares shares | Dec. 28, 2022 USD ($) $ / shares shares | Dec. 29, 2021 USD ($) $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Shares available for grant (in shares) | 700 |  |
Income tax benefits recognized related to share-based compensation | $ | $ 2.3 | $ 2.9 | $ 3.4
Unrecognized compensation cost related to unvested awards outstanding | $ | $ 9.6 |  |
Unrecognized compensation cost, expected weighted average period | 1 year 9 months 18 days |  |
Employee share awards |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Grant date fair value per unit (in dollars per share) | $ / shares | $ 13.43 | $ 16.22 | $ 21.83
Awards compensation cost | 500 |  |
Remaining awards compensation cost | 100 |  |
Cash payments | $ | $ 0.1 | $ 0.4 | $ 0.2
Intrinsic value of units converted | $ | $ 8.6 | $ 13.8 | $ 4.3
Stock units outstanding (in shares) | 1,990 | 1,297 |
Certain Employees | Performance Shares Total Shareholder Return |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Equity awards granted (in shares) | 300 |  |
Grant date fair value per unit (in dollars per share) | $ / shares | $ 18.39 |  |
Certain Employees | Performance Shares Adjusted EPS |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Equity awards granted (in shares) | 300 |  |
Grant date fair value per unit (in dollars per share) | $ / shares | $ 11.90 |  |
Certain Employees | Employee share awards |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Grant date fair value per unit (in dollars per share) | $ / shares | $ 18.39 | $ 21.05 | $ 24.74
Certain Employees | Employee share awards | Minimum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Percentage of target achievement | 0.00% |  |
Certain Employees | Employee share awards | Maximum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Percentage of target achievement | 200.00% |  |
Certain Employees | Restricted stock units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Equity awards granted (in shares) | 700 |  |
Grant date fair value per unit (in dollars per share) | $ / shares | $ 11.83 |  |
Vesting period | 3 years |  |
Board Members | Restricted stock units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Equity awards granted (in shares) | 100 |  |
Grant date fair value per unit (in dollars per share) | $ / shares | $ 10.71 |  |
Unrecognized compensation cost related to unvested awards outstanding | $ | $ 0.3 |  |
Vesting period | 1 year |  |
Unrecognized compensation cost, expected weighted average period | 4 months 24 days |  |
Number of equal annual installments | installment | 3 |  |
Stock units converted into common stock (in shares) | 200 |  |
Stock units outstanding (in shares) | 700 | 800 |
2021 Omnibus Plan |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Shares available for grant (in shares) | 1,500 |  |

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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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