Derivative Financial Instruments - Schedule of Derivative Instrument Not Designated as Hedging (Details) - USD ($) $ in Millions	12 Months Ended
Feb. 24, 2018	Feb. 25, 2017	Feb. 27, 2016
Not designated as hedging instrument \| Interest rate swaps \| Other expense (income)
Derivative Instruments, Gain (Loss) [Line Items]
Amount of income (loss) recognized from derivatives	$ 0.6	$ 0.8	$ (2.9)

Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration