v3.25.2
Fair Value Narrative (Details) - USD ($)
$ in Millions
6 Months Ended
Aug. 29, 2025
Feb. 28, 2025
Aug. 23, 2024
Feb. 23, 2024
Fair Value Disclosures [Abstract]        
Debt, Long-term and Short-term, Combined Amount $ 447.4 $ 447.1    
Long-term Debt, Fair Value 443.7 432.8    
Short-Term Investments 41.1 41.6    
Short-Term Investments, Cost Basis 40.4      
Unrealized Gain (Loss) on Investments 0.7      
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One 10.4      
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five 30.7      
Fair Value, Option, Quantitative Disclosures [Line Items]        
Restricted Cash 7.3 7.5 $ 7.3 $ 7.3
Fair Value, Recurring [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Cash and cash equivalents 216.8 346.3    
Restricted Cash 7.3 7.5    
Assets, Fair Value Disclosure 270.9 399.0    
Liabilities, Fair Value Disclosure (0.3) (1.4)    
Fair Value, Recurring [Member] | Debt Security, Corporate, US        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 17.6 18.0    
Fair Value, Recurring [Member] | Debt Security, Corporate, Non-US        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 5.2 5.7    
Fair Value, Recurring [Member] | Asset-backed Securities [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 9.8 8.6    
Fair Value, Recurring [Member] | US Treasury Securities        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 8.5 9.3    
Fair Value, Recurring [Member] | Foreign Exchange Contract [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Foreign exchange forward contracts 3.0 0.8    
Foreign exchange forward contracts (0.3) (1.4)    
Fair Value, Recurring [Member] | Auction Rate Securities [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Auction rate security 2.7 2.8    
Fair Value, Inputs, Level 1 | Fair Value, Recurring [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Cash and cash equivalents 216.8 346.3    
Restricted Cash 7.3 7.5    
Assets, Fair Value Disclosure 232.6 363.1    
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 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 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 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 8.5 9.3    
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 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 35.6 33.1    
Liabilities, Fair Value Disclosure (0.3) (1.4)    
Fair Value, Inputs, Level 2 | Fair Value, Recurring [Member] | Debt Security, Corporate, US        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 17.6 18.0    
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 5.2 5.7    
Fair Value, Inputs, Level 2 | Fair Value, Recurring [Member] | Asset-backed Securities [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Investments, Fair Value Disclosure 9.8 8.6    
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 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 3.0 0.8    
Foreign exchange forward contracts (0.3) (1.4)    
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 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 2.7 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 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 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 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 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 $ 2.7 $ 2.8