Income Taxes (Schedule of Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Mar. 02, 2013	Mar. 03, 2012	Feb. 26, 2011
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Gross unrecognized tax benefits at beginning of year	$ 7,125	$ 10,676	$ 12,666
Gross increases in tax positions for prior years	236	136	1,084
Gross decreases in tax positions for prior years	(1,480)	(462)	(3,197)
Gross increases based on tax positions related to the current year	621	623	663
Gross decreases based on tax positions related to the current year	(56)	(78)	(92)
Settlements	(682)	(1,200)	(1,382)
Statute of limitations expiration	(248)	(2,570)	(127)
Unrecognized tax benefits acquired in connection with GlassecViracon	0	0	1,061
Gross unrecognized tax benefits at end of year	$ 5,516	$ 7,125	$ 10,676

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The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date.

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The gross amount of decreases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns.

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The gross amount of decreases in unrecognized tax benefits resulting from settlements with taxing authorities.

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Gross amount of increases in unrecognized tax benefits resulting from acquisitions.

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