Income Taxes (Schedule of Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Feb. 28, 2015	Mar. 01, 2014	Mar. 02, 2013
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Gross unrecognized tax benefits at beginning of year	$ 4,431us-gaap_UnrecognizedTaxBenefits	$ 5,516us-gaap_UnrecognizedTaxBenefits	$ 7,125us-gaap_UnrecognizedTaxBenefits
Gross increases in tax positions for prior years	261	44	236
Gross decreases in tax positions for prior years	(276)	(616)	(1,480)
Gross increases based on tax positions related to the current year	508	326	621
Gross decreases based on tax positions related to the current year	(21)	(40)	(56)
Settlements	(93)	(84)	(682)
Statute of limitations expiration	(319)	(809)	(248)
Unrecognized tax benefits acquired in connection with Alumicor	0	94	0
Gross unrecognized tax benefits at end of year	$ 4,491us-gaap_UnrecognizedTaxBenefits	$ 4,431us-gaap_UnrecognizedTaxBenefits	$ 5,516us-gaap_UnrecognizedTaxBenefits

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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Amount of decrease in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from acquisitions.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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