Reclassifications from Accumulated Other Comprehensive Loss (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Mar. 01, 2014	Nov. 30, 2013	Aug. 31, 2013	Jun. 01, 2013	Mar. 02, 2013	Dec. 01, 2012	Sep. 01, 2012	Jun. 02, 2012	Mar. 01, 2014	Mar. 02, 2013	Mar. 03, 2012
Reclassification from accumulated other comprehensive loss
Income (loss) before income taxes	$ (49,371)	$ (72,936)	$ (35,037)	$ (92,874)	$ (76,305)	$ (62,648)	$ 41,631	$ 89,817	$ (250,218)	$ (7,505)	$ 392,257
Income tax benefit	(6,006)	1,388	2,210	3,212	(46,782)	777	(2,866)	(61,729)	804	(110,600)	(23,686)
Net of income tax expense	(55,377)	(71,548)	(32,827)	(89,662)	(123,087)	(61,871)	38,765	28,088	(249,414)	(118,105)	368,571
Defined benefit pension plans | Reclassification from accumulated other comprehensive loss
Reclassification from accumulated other comprehensive loss
Income (loss) before income taxes									(4,824)	(5,032)	(2,492)
Net of income tax expense									(4,824)	(5,032)	(2,492)
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									(240)	(240)	(639)
Amortization of unrecognized net loss									$ (4,584)	$ (4,792)	$ (1,853)