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Goodwill & Other Intangible Assets Intangible Assets (Details) - USD ($)
$ in Millions
 12 Months Ended
Feb. 26, 2021
Feb. 28, 2020
Feb. 22, 2019
Schedule Of Intangible Assets By Major ClassLine Items [Line Items]      
Intangible assets amortization expense $ 16.3 $ 12.4 $ 12.3
Finite-lived intangible assets, gross 163.6 150.7  
Finite-lived intangible assets, accumulated amortization 73.3 56.7  
Finite-lived intangible assets, net 90.3 94.0  
Indefinite-lived intangible assets, gross 0.1 8.9  
Indefinite-lived intangible assets, accumulated amortization 0.0 0.0  
Indefinite-lived intangible assets, net 0.1 8.9  
Other intangible assets, gross 163.7 159.6  
Other intangible assets, net 90.4 102.9  
Estimated Amortization Expense, Fiscal Year Maturity [Abstract]      
Amortization expense, 2019 14.2    
Amortization expense, 2020 14.1    
Amortization expense, 2021 11.3    
Amortization expense, 2022 11.5    
Amortization expense, 2023 11.3    
Amortization Expense, 2019-2023 Total $ 62.4    
Patented Technology [Member]      
Schedule Of Intangible Assets By Major ClassLine Items [Line Items]      
Weighted average useful life 9 years 9 months    
Finite-lived intangible assets, gross $ 15.8 15.8  
Finite-lived intangible assets, accumulated amortization 13.6 13.1  
Finite-lived intangible assets, net 2.2 2.7  
Know-How/Design [Member]      
Schedule Of Intangible Assets By Major ClassLine Items [Line Items]      
Finite-lived intangible assets, gross 21.4 20.8  
Finite-lived intangible assets, accumulated amortization 6.1 3.6  
Finite-lived intangible assets, net $ 15.3 17.2  
Non-compete agreements [Member]      
Schedule Of Intangible Assets By Major ClassLine Items [Line Items]      
Weighted average useful life 6 years 2 months    
Finite-lived intangible assets, gross $ 1.3 1.2  
Finite-lived intangible assets, accumulated amortization 1.3 1.2  
Finite-lived intangible assets, net $ 0.0 0.0  
Trademarks [Member]      
Schedule Of Intangible Assets By Major ClassLine Items [Line Items]      
Weighted average useful life 9 years 11 months    
Finite-lived intangible assets, gross $ 44.0 35.4  
Finite-lived intangible assets, accumulated amortization 19.8 13.7  
Finite-lived intangible assets, net $ 24.2    
Dealer relationships [Member]      
Schedule Of Intangible Assets By Major ClassLine Items [Line Items]      
Weighted average useful life 11 years    
Finite-lived intangible assets, gross $ 58.7 56.7  
Finite-lived intangible assets, accumulated amortization 14.9 9.3  
Finite-lived intangible assets, net $ 43.8    
Other Intangible Assets [Member]      
Schedule Of Intangible Assets By Major ClassLine Items [Line Items]      
Weighted average useful life 4 years 8 months    
Finite-lived intangible assets, gross $ 22.4 20.8  
Finite-lived intangible assets, accumulated amortization 17.6 15.8  
Finite-lived intangible assets, net 4.8 5.0  
Other category [Member]      
Schedule Of Intangible Assets By Major ClassLine Items [Line Items]      
Intangible asset impairment charges $ 0.0