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Leases lease (Details) - USD ($)
$ in Millions
12 Months Ended
Feb. 26, 2021
Feb. 28, 2020
Lessee, Lease, Description [Line Items]    
Operating Lease, Cost $ 51.8 $ 51.9
Sublease Income 2.4 1.2
Operating Leases, Rent Expense, Net $ 49.4 $ 50.7
Operating Lease, Weighted Average Remaining Lease Term 6 years 7 months 6 days 7 years 1 month 6 days
Lessee, Operating Lease, Discount Rate 3.80% 4.00%
Lease Obligation Incurred $ 21.8 $ 103.6
Operating Lease, Payments, Use $ 50.4 $ 45.3