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Employee Benefit Plans Employee Benefit Plans (Amounts Recognized in Comprehensive Earnings) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Feb. 28, 2015
Mar. 01, 2014
Compensation and Retirement Disclosure [Abstract]    
Net actuarial loss (gain) $ 1,458us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax $ (19)us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax
Total $ 1,458us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax $ (19)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax