Income Taxes (Details 3) (USD $) In Thousands, unless otherwise specified	Mar. 03, 2012
Net Operating Losses
Federal business tax credit carryforwards	$ 59,187
Alternative minimum tax credit carryforwards	3,221
Federal
Net Operating Losses
Net operating loss carryforwards	3,891,357
State
Net Operating Losses
Net operating loss carryforwards	$ 5,502,866