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Share-Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Feb. 23, 2024
Feb. 24, 2023
Feb. 25, 2022
Share-Based Payment Arrangement [Abstract]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 5,179,745    
Share-Based Compensation Details [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Nonvested, Number 4,451,622    
2024 PSU's      
Share-Based Compensation Details [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period 767,600    
2023 PSU's      
Share-Based Compensation Details [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period 428,700    
2022 PSU's      
Share-Based Compensation Details [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period 448,300    
Director Share-Based Compensation [Member]      
Share-Based Compensation Details [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period 131,013 109,090 61,360
Restricted Stock Units (RSUs) [Member]      
Share-Based Compensation Details [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 3,151,634 3,293,268  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 8.36 $ 10.63 $ 13.08
Performance and restricted stock units expense $ 18.2 $ 17.6 $ 13.7
Share-based Payment Arrangement, Expense, Tax Benefit $ 4.5 $ 4.4 3.5
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 9.59 $ 12.11  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 1,786,505    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period (1,859,559)    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value $ 12.83    
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options $ 9.4    
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value $ 23.2 $ 10.1 10.1
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period (68,580)    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value $ 10.51    
Performance Shares [Member]      
Share-Based Compensation Details [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 1,299,988 1,060,231  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Intrinsic Value $ 4.5 $ 3.5 2.3
Performance and restricted stock units expense 6.7 3.2 1.6
Share-based Payment Arrangement, Expense, Tax Benefit $ 1.7 $ 0.8 0.4
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 9.51 $ 13.11  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 1,315,664    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period (378,811)    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value $ 9.45    
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Period Increase (Decrease) [1] (697,096)    
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options $ 2.1    
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition 1 year 7 months 6 days    
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value $ 4.9 $ 2.1 $ 2.5
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Period Increase (Decrease), Weighted Average Grant Date $ 12.73    
Performance Shares [Member] | 2024 PSU's      
Share-Based Compensation Details [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 8.30    
Performance Shares [Member] | 2024 PSU's | Tranche 1      
Share-Based Compensation Details [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate [2] 3.70%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate [3] 44.10%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 3 years    
Performance Shares [Member] | 2023 PSU's      
Share-Based Compensation Details [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value   $ 11.13  
Performance Shares [Member] | 2023 PSU's | Tranche 1      
Share-Based Compensation Details [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate [2] 2.60%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate [3] 52.20%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 3 years    
Performance Shares [Member] | 2023 PSU's | Tranche 2      
Share-Based Compensation Details [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate [2] 4.00%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate [3] 37.80%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 2 years    
Performance Shares [Member] | 2022 PSU's      
Share-Based Compensation Details [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value     $ 14.38
Performance Shares [Member] | 2022 PSU's | Tranche 1      
Share-Based Compensation Details [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate [2] 0.30%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate [3] 53.50%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 3 years    
Performance Shares [Member] | 2022 PSU's | Tranche 2      
Share-Based Compensation Details [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate [2] 2.30%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate [3] 43.80%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 2 years    
Performance Shares [Member] | 2022 PSU's | Tranche 3      
Share-Based Compensation Details [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate [2] 4.70%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate [3] 45.50%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 1 year    
Restricted Stock [Member]      
Share-Based Compensation Details [Line Items]      
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition 1 year 9 months 18 days    
Director Share-Based Compensation [Member]      
Share-Based Compensation Details [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 8.53 $ 9.67 $ 13.81
Maximum [Member]      
Share-Based Compensation Details [Line Items]      
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Shares Earned [4] 1,299,988    
Minimum [Member]      
Share-Based Compensation Details [Line Items]      
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Shares Earned 0    
[1] This amount represents the difference between the maximum number of shares that could have been issued for the 2022 PSUs and the number of shares actually earned based on final performance, as modified.
[2] Based on the U.S. Government bond benchmark on the grant date.
[3] Represents the historical price volatility of our Class A Common Stock for the period prior to the grant date which is equivalent to the expected term of the tranche.
[4] This amount represents the maximum number of shares that may be issued under outstanding performance unit awards; however, the actual number of shares which may be issued will be determined based on the satisfaction of certain conditions, and therefore may be significantly lower.