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Fair Value Narrative (Details) - USD ($)
$ in Millions
6 Months Ended
Aug. 23, 2024
Feb. 23, 2024
Aug. 25, 2023
Feb. 24, 2023
Fair Value Disclosures [Abstract]        
Debt, Long-term and Short-term, Combined Amount $ 446.7 $ 446.3    
Long-term Debt, Fair Value 434.4 423.0    
Short-Term Investments 39.2 0.0    
Short-Term Investments, Cost Basis 38.6      
Unrealized Gain (Loss) on Investments 0.6      
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One 8.5      
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five 30.7      
Business Combination, Contingent Consideration, Liability 14.1      
Fair Value, Option, Quantitative Disclosures [Line Items]        
Restricted Cash 7.3 7.3 $ 7.0 $ 6.8
Fair Value, Recurring [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Cash and cash equivalents 296.6 318.6    
Restricted Cash 7.3 7.3    
Assets, Fair Value Disclosure 348.3 329.5    
Liabilities, Fair Value Disclosure (2.3) (0.5)    
Fair Value, Recurring [Member] | Debt Security, Corporate, US        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 17.3      
Fair Value, Recurring [Member] | Debt Security, Corporate, Non-US        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 5.3      
Fair Value, Recurring [Member] | Asset-backed Securities [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 9.3      
Fair Value, Recurring [Member] | US Treasury Securities        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 7.3      
Fair Value, Recurring [Member] | Foreign Exchange Contract [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Foreign exchange forward contracts 2.2 0.8    
Foreign exchange forward contracts (2.3) (0.5)    
Fair Value, Recurring [Member] | Auction Rate Securities [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Auction rate security 3.0 2.8    
Fair Value, Recurring [Member] | Contingent Consideration Type [Domain]        
Fair Value Disclosures [Abstract]        
Contingent Consideration Classified as Equity, Fair Value Disclosure 0.0 0.0    
Fair Value, Option, Quantitative Disclosures [Line Items]        
Contingent Consideration Classified as Equity, Fair Value Disclosure 0.0 0.0    
Fair Value, Inputs, Level 1 | Fair Value, Recurring [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Cash and cash equivalents 296.6 318.6    
Restricted Cash 7.3 7.3    
Assets, Fair Value Disclosure 311.2 325.9    
Liabilities, Fair Value Disclosure 0.0 0.0    
Fair Value, Inputs, Level 1 | Fair Value, Recurring [Member] | Debt Security, Corporate, US        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 0.0      
Fair Value, Inputs, Level 1 | Fair Value, Recurring [Member] | Debt Security, Corporate, Non-US        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 0.0      
Fair Value, Inputs, Level 1 | Fair Value, Recurring [Member] | Asset-backed Securities [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 0.0      
Fair Value, Inputs, Level 1 | Fair Value, Recurring [Member] | US Treasury Securities        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 7.3      
Fair Value, Inputs, Level 1 | Fair Value, Recurring [Member] | Foreign Exchange Contract [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Foreign exchange forward contracts 0.0 0.0    
Foreign exchange forward contracts 0.0 0.0    
Fair Value, Inputs, Level 1 | Fair Value, Recurring [Member] | Auction Rate Securities [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Auction rate security 0.0 0.0    
Fair Value, Inputs, Level 1 | Fair Value, Recurring [Member] | Contingent Consideration Type [Domain]        
Fair Value Disclosures [Abstract]        
Contingent Consideration Classified as Equity, Fair Value Disclosure 0.0 0.0    
Fair Value, Option, Quantitative Disclosures [Line Items]        
Contingent Consideration Classified as Equity, Fair Value Disclosure 0.0 0.0    
Fair Value, Inputs, Level 2 | Fair Value, Recurring [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Cash and cash equivalents 0.0 0.0    
Restricted Cash 0.0 0.0    
Assets, Fair Value Disclosure 34.1 0.8    
Liabilities, Fair Value Disclosure (2.3) (0.5)    
Fair Value, Inputs, Level 2 | Fair Value, Recurring [Member] | Debt Security, Corporate, US        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 17.3      
Fair Value, Inputs, Level 2 | Fair Value, Recurring [Member] | Debt Security, Corporate, Non-US        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 5.3      
Fair Value, Inputs, Level 2 | Fair Value, Recurring [Member] | Asset-backed Securities [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 9.3      
Fair Value, Inputs, Level 2 | Fair Value, Recurring [Member] | US Treasury Securities        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 0.0      
Fair Value, Inputs, Level 2 | Fair Value, Recurring [Member] | Foreign Exchange Contract [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Foreign exchange forward contracts 2.2 0.8    
Foreign exchange forward contracts (2.3) (0.5)    
Fair Value, Inputs, Level 2 | Fair Value, Recurring [Member] | Auction Rate Securities [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Auction rate security 0.0 0.0    
Fair Value, Inputs, Level 2 | Fair Value, Recurring [Member] | Contingent Consideration Type [Domain]        
Fair Value Disclosures [Abstract]        
Contingent Consideration Classified as Equity, Fair Value Disclosure 0.0 0.0    
Fair Value, Option, Quantitative Disclosures [Line Items]        
Contingent Consideration Classified as Equity, Fair Value Disclosure 0.0 0.0    
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Cash and cash equivalents 0.0 0.0    
Restricted Cash 0.0 0.0    
Assets, Fair Value Disclosure 3.0 2.8    
Liabilities, Fair Value Disclosure 0.0 0.0    
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Debt Security, Corporate, US        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 0.0      
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Debt Security, Corporate, Non-US        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 0.0      
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Asset-backed Securities [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 0.0      
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | US Treasury Securities        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 0.0      
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Foreign Exchange Contract [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Foreign exchange forward contracts 0.0 0.0    
Foreign exchange forward contracts 0.0 0.0    
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Auction Rate Securities [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Auction rate security 3.0 2.8    
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member] | Contingent Consideration Type [Domain]        
Fair Value Disclosures [Abstract]        
Contingent Consideration Classified as Equity, Fair Value Disclosure 0.0 0.0    
Fair Value, Option, Quantitative Disclosures [Line Items]        
Contingent Consideration Classified as Equity, Fair Value Disclosure $ 0.0 $ 0.0