Income Taxes (Income Tax Reconciliation) (Details)	12 Months Ended
Mar. 04, 2017	Feb. 27, 2016	Feb. 28, 2015
Income Tax Disclosure [Abstract]
Federal income tax expense at statutory rate	35.00%	35.00%	35.00%
Manufacturing deduction	(3.30%)	(3.40%)	(2.30%)
State and local income taxes, net of federal tax benefit	1.60%	1.60%	1.20%
Foreign tax rate differential	(1.60%)	0.00%	0.00%
Tax credits - research & development	(0.70%)	(0.80%)	(1.10%)
Tax credits - 48C	(0.00%)	(0.00%)	(9.90%)
Other, net	(0.90%)	0.50%	(0.60%)
Income tax expense	30.10%	32.90%	22.30%

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32698-109319

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deduction for qualified production activity.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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