Reclassifications from Accumulated Other Comprehensive Loss (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	May 31, 2014	Jun. 01, 2013
Reclassification from accumulated other comprehensive loss
Income (loss) before income taxes	$ (53,327)	$ (92,874)
Income tax benefit	11,881	3,212
Net of income tax expense	(41,446)	(89,662)
Defined benefit pension plans | Reclassification from accumulated other comprehensive loss
Reclassification from accumulated other comprehensive loss
Income (loss) before income taxes	(659)	(1,263)
Net of income tax expense	(659)	(1,263)
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	$ (599)	$ (1,203)