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Stock Incentive Plans (Details) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
May 31, 2019 shares | Dec. 29, 2019 USD ($) shares | Dec. 30, 2018 USD ($) shares | Dec. 31, 2017 USD ($) Period shares | Dec. 25, 2016 Period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Total stock-based compensation cost | $ |  | $ 3.3 | $ 4.0 | $ 4.8 |
Income tax benefits from stock-based compensation cost | $ |  | 0.3 | $ 0.5 | $ 1.5 |
Total unrecognized compensation cost | $ |  | $ 5.9 |  |  |
Number of performance periods | Period |  |  |  | 3 | 1
Stock Options |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Shares outstanding |  | 288,000 | 483,000 |  |
Weighted average remaining vesting period |  | 10 months 17 days |  |  |
Restricted Stock |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Weighted average remaining vesting period |  | 1 year 9 months 8 days |  |  |
Performance Shares |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Weighted average remaining vesting period |  | 1 year 9 months 22 days |  |  |
Number of common shares issued per RSU or PSU (in shares) |  |  |  | 1 |
Amended 2017 Performance Plan [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Maximum number of shares of the company's common stock that may be issued or transferred (in shares) |  | 630,182 |  |  |
2017 and 2007 Performance Incentive Plans |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Period following the change in control during which termination of an individual without cause will trigger vesting of award |  |  | 2 years |  |
Other Stock Based Compensation Plan [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Expiration Term |  |  | 10 years |  |
2017 Stock Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Maximum number of shares of the company's common stock that may be issued or transferred (in shares) |  | 1,290,182 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized | 660,000 |  |  |  |
2007 Stock Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Shares outstanding |  |  | 242,579 |  |
Long-term cash incentive plan | Deferred compensation, excluding share-based payments and retirement benefits |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Performance and vesting period |  |  | 3 years | 1 year | 3 years
Compensation expense | $ |  | $ 0.2 | $ 0.7 | $ 0.4 |
Long-term cash incentive plan | Deferred compensation, excluding share-based payments and retirement benefits | Accrued payroll liabilities and payroll-related liabilities |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Long-term cash incentive plan liability | $ |  | $ 1.1 | $ 0.7 |  |
Minimum | 2007 Stock Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting period |  |  | 1 year |  |
Maximum | 2007 Stock Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting period |  |  | 4 years |  |
Share-based Payment Arrangement, Employee | 2007 Stock Plan | Time Based RSUs |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting period |  |  | 4 years |  |
Share-based Payment Arrangement, Nonemployee | 2007 Stock Plan | Time Based RSUs |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting period |  |  | 1 year |  |

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