Reclassifications from Accumulated Other Comprehensive Income (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 01, 2013	Jun. 02, 2012
Reclassification from accumulated other comprehensive loss
Income (loss) before income taxes	$ (92,874)	$ 89,817
Income tax expense	(3,212)	61,729
Net of income tax expense	(89,662)	28,088
Reclassification from accumulated other comprehensive loss
Reclassification from accumulated other comprehensive loss
Net of income tax expense	(1,263)	(1,020)
Defined benefit pension plans | Reclassification from accumulated other comprehensive loss
Reclassification from accumulated other comprehensive loss
Income (loss) before income taxes	(1,263)	(1,020)
Defined benefit pension plans | Reclassification from accumulated other comprehensive loss | Selling, general and administrative expenses
Reclassification from accumulated other comprehensive loss
Amortization of unrecognized prior service cost	(60)	(60)
Amortization of unrecognized net loss	$ (1,203)	$ (960)