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Stock-Based Compensation - Schedule Of Stock-Based Compensation Expense (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 25, 2022
Dec. 31, 2023
Dec. 25, 2022
Dec. 26, 2021
Stock-Based Compensation [Line Items]        
Stock based compensation expense $ 0.7 $ 17.8 $ 10.9 $ 9.3
Tax benefit   4.2 3.0 2.0
Total after tax expense   13.6 7.9 7.3
Performance awards        
Stock-Based Compensation [Line Items]        
Stock based compensation expense   1.2 3.2 2.3
Restricted stock units        
Stock-Based Compensation [Line Items]        
Stock based compensation expense   15.6 6.2 6.2
Stock option awards        
Stock-Based Compensation [Line Items]        
Stock based compensation expense   $ 1.0 $ 1.5 $ 0.8