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 | | |
Short-Term Investments | 39.2 | 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 | $ 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 | 2.8 | | |
Fair Value, Recurring [Member] | Contingent Consideration Type [Domain] | | | | |
Fair Value Disclosures [Abstract] | | | | |
Contingent Consideration Classified as Equity, Fair Value Disclosure | 0 | 0 | | |
Fair Value, Option, Quantitative Disclosures [Line Items] | | | | |
Contingent Consideration Classified as Equity, Fair Value Disclosure | 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 | | |
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 | | | |
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 | | | |
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 | | | |
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 | | |
Foreign exchange forward contracts | 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 | | |
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 | | |
Fair Value, Option, Quantitative Disclosures [Line Items] | | | | |
Contingent Consideration Classified as Equity, Fair Value Disclosure | 0 | 0 | | |
Fair Value, Inputs, Level 2 | Fair Value, Recurring [Member] | | | | |
Fair Value, Option, Quantitative Disclosures [Line Items] | | | | |
Cash and cash equivalents | 0 | 0 | | |
Restricted Cash | 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 | | | |
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 | | |
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 | | |
Fair Value, Option, Quantitative Disclosures [Line Items] | | | | |
Contingent Consideration Classified as Equity, Fair Value Disclosure | 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 | | |
Restricted Cash | 0 | 0 | | |
Assets, Fair Value Disclosure | 3 | 2.8 | | |
Liabilities, Fair Value Disclosure | 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 | | | |
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 | | | |
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 | | | |
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 | | | |
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 | | |
Foreign exchange forward contracts | 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 | 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 | | |
Fair Value, Option, Quantitative Disclosures [Line Items] | | | | |
Contingent Consideration Classified as Equity, Fair Value Disclosure | $ 0 | $ 0 | | |