Short-Term Borrowings And Long-Term Debt Global Credit Facility (Details) - USD ($) $ in Millions		12 Months Ended
		Feb. 24, 2017	Feb. 26, 2016		Feb. 27, 2015
Debt Instrument [Line Items]
Repayments of Long-term Debt		$ 2.3	$ 34.8		$ 2.6
Revolving Credit Facilities Due 2022 [Member]
Debt Instrument [Line Items]
Line of Credit, Current			0.0
Revolving Credit Facilities due 2018, global committed [Member]
Debt Instrument [Line Items]
Line of Credit, Current		0.0
United States of America, Dollars | Senior Notes due 2021 [Member]
Debt Instrument [Line Items]
Senior Notes	[1]	248.8	$ 248.2
United States of America, Dollars | Revolving Credit Facilities Due 2022 [Member]
Debt Instrument [Line Items]
Line of Credit, Current	[2],[3]	0.0
United States of America, Dollars | Revolving Credit Facilities Due 2018 [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Interest Rate Description			The greatest of the prime rate, the Federal fund effective rate plus 0.5%, and the Eurocurrency rate for a one month interest period plus 1%, plus the applicable margin as set forth in the credit agreement; or the Eurocurrency rate plus the applicable margin as set forth in the credit agreement.
Line of Credit Facility, Covenant Terms			A maximum leverage ratio covenant, which is measured by the ratio of (x) indebtedness (as determined under the credit agreement) less excess liquidity (as determined under the credit agreement) to (y) the trailing four quarter Adjusted EBITDA (as determined under the credit agreement) and is required to be no greater than 3:1. (In the context of certain permitted acquisitions, we have a one-time ability, subject to certain conditions, to increase the maximum ratio to 3.25 to 1.0 for four consecutive quarters). A minimum interest coverage ratio covenant, which is measured by the ratio of (y) trailing four quarter Adjusted EBITDA (as determined under the credit agreement) to (z) trailing four quarter interest expense and is required to be no less than 3.5:1. The facility requires us to comply with certain other covenants, including a restriction on the aggregate amount of cash dividend payments and share repurchases in any fiscal year. In general, as long as our leverage ratio is less than 2.50 to 1.0, there is no restriction on cash dividends and share repurchases. If our leverage ratio is between 2.50 to 1.0 and the maximum then permitted, our ability to pay more than $35.0 in cash dividends and share repurchases in aggregate in any fiscal year may be restricted, depending on our liquidity.
Line of Credit Facility, Covenant Compliance			in compliance with all covenants under the facility in place
Line of Credit, Current	[2],[3]		$ 0.0
United States of America, Dollars | Notes Payable due 2024 [Member]
Debt Instrument [Line Items]
Notes Payable		48.0	50.1	[4]
United States of America, Dollars | Capitalized Lease Obligations, US Dollar [Member]
Debt Instrument [Line Items]
Capital Lease Obligations		0.0	0.1
United States of America, Dollars | Revolving Credit Facilities short term, secured uncommitted [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			1.6
Line of Credit, Current		0.0	0.0
United States of America, Dollars | Revolving Credit Facilities due 2022, global committed [Domain]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		125.0
Line of Credit Facility, Additional Borrowing Capacity Available		75.0
Foreign Currency [Domain] | Revolving Credit Facilities [Member]
Debt Instrument [Line Items]
Line of Credit, Current	[3]	0.0	0.0
Foreign Currency [Domain] | Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Notes Payable		0.3	0.3
Foreign Currency [Domain] | CapitalizedLeaseObligationsDue2020 [Member]
Debt Instrument [Line Items]
Capital Lease Obligations		0.3	0.4
Foreign Currency [Domain] | Revolving Credit Facilities short term, secured uncommitted [Member]
Debt Instrument [Line Items]
Line of Credit, Current		$ 0.0	0.0
Balloon Payment [Member] | United States of America, Dollars | Notes Payable due 2024 [Member]
Debt Instrument [Line Items]
Repayments of Long-term Debt			32.0
Fixed Monthly Payments [Member] | United States of America, Dollars | Notes Payable due 2024 [Member]
Debt Instrument [Line Items]
Repayments of Long-term Debt			$ 0.0

[1] We have $250 of unsecured unsubordinated senior notes, due in February 2021 (“2021 Notes”). The 2021 Notes were issued at 99.953% of par value. The bond discount of $0.1 and direct debt issuance costs of $3.0 were deferred and are being amortized over the life of the 2021 Notes. Although the coupon rate of the 2021 Notes is 6.375%, the effective interest rate is 6.6% after taking into account the impact of the direct debt issuance costs, a deferred loss on interest rate locks related to the debt issuance and the bond discount. The 2021 Notes rank equally with all of our other unsecured unsubordinated indebtedness, and they contain no financial covenants. We may redeem some or all of the 2021 Notes at any time. The redemption price would equal the greater of (1) the principal amount of the notes being redeemed; or (2) the present value of the remaining scheduled payments of principal and interest discounted to the redemption date on a semi-annual basis at the comparable U.S. Treasury rate plus 45 basis points; plus, in both cases, accrued and unpaid interest. If the notes are redeemed within 3 months of maturity, the redemption price would be equal to the principal amount of the notes being redeemed plus accrued and unpaid interest. Amortization expense related to the direct debt issuance costs and bond discount on the 2021 Notes was $0.3 in 2017, 2016 and 2015

[2] We have a $125 global committed five-year bank facility which was entered into in Q3 2017. This facility amended and restated the former facility which was scheduled to expire in Q1 2018. As of February 24, 2017 and February 26, 2016, there were no borrowings outstanding under the facilities, our availability was not limited, and we were in compliance with all covenants under the facilities. We have $5.0 in other revolving credit facilities, from which we had no borrowings outstanding as of February 24, 2017 and February 26, 2016.In addition, we have revolving credit agreements of $35.2 which can be utilized to support bank guarantees, letters of credit, overdrafts and foreign exchange contracts. As of February 24, 2017, we had $12.3 in outstanding bank guarantees and standby letters of credit against these facilities. We had no draws against our standby letters of credit during 2017 or 2016

[3] We have unsecured uncommitted short-term credit facilities of up to $1.6 of U.S. dollar obligations and up to $18.7 of foreign currency obligations with various financial institutions available for working capital purposes as of February 24, 2017. Interest rates are variable and determined at the time of borrowing. These credit facilities have no stated expiration date but may be changed or canceled by the banks at any time. There were no borrowings on these facilities as of February 24, 2017 and February 26, 2016

[4] We have a $48.0 note payable with an original amount of $50.0 at a floating interest rate based on 30-day LIBOR plus 1.20%. The loan has a term of seven years and requires fixed monthly principal payments of $0.2 on a 20-year amortization schedule with a $32 balloon payment due in 2024. The loan is secured by two corporate aircraft, contains no financial covenants and is not cross-defaulted to our other debt facilities.