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Fair Value (Details) - USD ($) $ in Millions	12 Months Ended
Fair Value (Details) - USD ($) $ in Millions	Feb. 28, 2025	Feb. 23, 2024	Feb. 24, 2023	Feb. 25, 2022
Fair Value, Option, Quantitative Disclosures [Line Items]
Restricted Cash	$ 7.5	$ 7.3	$ 6.8	$ 6.1
Unrealized gain (loss) on investments	(0.6)	(0.7)	0.5
Viccarbe Habitat, S.L. Q3 FY22
Fair Value, Option, Quantitative Disclosures [Line Items]
Business Combination, Contingent Consideration, Liability	13.6
Auction Rate Securities [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Available-for-sale Securities, Par Value	3.2
Debt Securities, Available-for-Sale, Realized Loss	0.9
Unrealized gain (loss) on investments	0.5
Estimated Reduction in Fair Value due to a One Hundred Basis Point Increase in Discount Rate	0.3
Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Cash and cash equivalents	346.3	318.6
Restricted Cash	7.5	7.3
Assets, Fair Value Disclosure	399.0	329.5
Liabilities, Fair Value Disclosure	(1.4)	(0.5)
Fair Value, Recurring [Member] \| Foreign Exchange Contract [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Foreign Currency Contract, Asset, Fair Value Disclosure	0.8	0.8
Foreign Currency Contracts, Liability, Fair Value Disclosure	(1.4)	(0.5)
Fair Value, Recurring [Member] \| Auction Rate Securities [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Auction rate security	2.8	2.8
Fair Value, Recurring [Member] \| Debt Security, Corporate, US
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Securities, Available-for-Sale	18.0
Fair Value, Recurring [Member] \| US Treasury Securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Securities, Available-for-Sale	9.3
Fair Value, Recurring [Member] \| Asset-Backed Securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Securities, Available-for-Sale	8.6
Fair Value, Recurring [Member] \| Debt Security, Corporate, Non-US
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Securities, Available-for-Sale	5.7
Fair Value, Inputs, Level 1 [Member] \| Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Cash and cash equivalents	346.3	318.6
Restricted Cash	7.5	7.3
Assets, Fair Value Disclosure	363.1	325.9
Liabilities, Fair Value Disclosure	0.0	0.0
Fair Value, Inputs, Level 1 [Member] \| Fair Value, Recurring [Member] \| Foreign Exchange Contract [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Foreign Currency Contract, Asset, Fair Value Disclosure	0.0	0.0
Foreign Currency Contracts, Liability, Fair Value Disclosure	0.0	0.0
Fair Value, Inputs, Level 1 [Member] \| 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 [Member] \| Fair Value, Recurring [Member] \| Debt Security, Corporate, US
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Securities, Available-for-Sale	0.0
Fair Value, Inputs, Level 1 [Member] \| Fair Value, Recurring [Member] \| US Treasury Securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Securities, Available-for-Sale	9.3
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Debt Securities, Available-for-Sale	0.0
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Fair Value, Inputs, Level 2 [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	33.1	0.8
Liabilities, Fair Value Disclosure	(1.4)	(0.5)
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Recurring [Member] \| Foreign Exchange Contract [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Foreign Currency Contract, Asset, Fair Value Disclosure	0.8	0.8
Foreign Currency Contracts, Liability, Fair Value Disclosure	(1.4)	(0.5)
Fair Value, Inputs, Level 2 [Member] \| 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 [Member] \| Fair Value, Recurring [Member] \| Debt Security, Corporate, US
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Securities, Available-for-Sale	18.0
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Recurring [Member] \| US Treasury Securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Securities, Available-for-Sale	0.0
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Recurring [Member] \| Asset-Backed Securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Securities, Available-for-Sale	8.6
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Recurring [Member] \| Debt Security, Corporate, Non-US
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Securities, Available-for-Sale	5.7
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	2.8	2.8
Liabilities, 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 Currency Contract, Asset, Fair Value Disclosure	0.0	0.0
Foreign Currency Contracts, Liability, Fair Value Disclosure	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	2.8	2.8	2.1
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)	0.0	0.7
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Recurring [Member] \| Contingent Consideration Type [Domain] \| Viccarbe Habitat, S.L. Q3 FY22 \| Fair Value, Disclosure Item Amounts [Domain]
Fair Value, Option, Quantitative Disclosures [Line Items]
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	0.0	(9.5)
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Recurring [Member] \| Contingent Consideration Type [Domain] \| Viccarbe Habitat, S.L. Q3 FY22
Fair Value, Option, Quantitative Disclosures [Line Items]
Contingent Consideration Classified as Equity, Fair Value Disclosure	0.0	$ 0.0	$ (9.5)
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Recurring [Member] \| Debt Security, Corporate, US
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Securities, Available-for-Sale	0.0
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Recurring [Member] \| US Treasury Securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Securities, Available-for-Sale	0.0
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Recurring [Member] \| Asset-Backed Securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Securities, Available-for-Sale	0.0
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Recurring [Member] \| Debt Security, Corporate, Non-US
Fair Value, Option, Quantitative Disclosures [Line Items]
Debt Securities, Available-for-Sale	$ 0.0