Consolidated Statements Of Comprehensive Loss (Parenthetical) (USD $) In Thousands	3 Months Ended	6 Months Ended
Sep. 10, 2011	Sep. 11, 2010	Sep. 10, 2011	Sep. 11, 2010
Consolidated Statements Of Comprehensive Loss
Pension and other post retirement benefits, tax effect	$ 0	$ 0	$ 1,719	$ 0

Tax effect of plan amendments during the period. The expense (benefit) has not been recognized in net periodic benefit cost.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e640-108580

Name:	us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansPlanAmendmentsTaxEffect
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration