Intangible Assets (Details) - Computer Software, Intangible Asset - USD ($) $ in Millions	Aug. 26, 2017	Feb. 25, 2017	Aug. 27, 2016
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	$ 143.7	$ 138.7	$ 132.5
Accumulated amortization	$ 57.5	$ 48.4	$ 40.0

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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