Loss Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	9 Months Ended
Nov. 26, 2011	Nov. 27, 2010	Nov. 26, 2011	Nov. 27, 2010
Numerator for loss per share:
Net loss	$ (51,985)	$ (79,071)	$ (207,321)	$ (349,731)
Accretion of redeemable preferred stock	(26)	(26)	(77)	(77)
Cumulative preferred stock dividends	(2,498)	(2,354)	(7,384)	(6,957)
Loss attributable to common stockholders-basic	(54,509)	(81,451)	(214,782)	(356,765)
Loss attributable to common stockholders-diluted	$ (54,509)	$ (81,451)	$ (214,782)	$ (356,765)
Denominator:
Basic weighted average shares	886,629	883,515	885,388	882,668
Diluted weighted average shares	886,629	883,515	885,388	882,668
Basic and diluted loss per share (in dollars per share)	$ (0.06)	$ (0.09)	$ (0.24)	$ (0.40)
Antidilutive securities excluded from computation of earnings per share
Potential common shares excluded from the computation of diluted loss per share	132,071	140,992	132,071	140,992
Stock options.
Antidilutive securities excluded from computation of earnings per share
Potential common shares excluded from the computation of diluted loss per share	76,537	87,235	76,537	87,235
Convertible preferred stock
Antidilutive securities excluded from computation of earnings per share
Potential common shares excluded from the computation of diluted loss per share	30,734	28,957	30,734	28,957
Convertible debt
Antidilutive securities excluded from computation of earnings per share
Potential common shares excluded from the computation of diluted loss per share	24,800	24,800	24,800	24,800
Restricted stock
Antidilutive securities excluded from computation of earnings per share
Potential common shares excluded from the computation of diluted loss per share			11,567	7,282

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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