Reclassifications from Accumulated Other Comprehensive Loss (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Aug. 31, 2013	Sep. 01, 2012	Aug. 31, 2013	Sep. 01, 2012
Accumulated other comprehensive loss
Balance - beginning of period	$ (60,106)	$ (51,614)	$ (61,369)	$ (52,634)
Amounts reclassified from accumulated other comprehensive loss to net income (loss)	1,262	1,019	2,525	2,039
Balance - end of period	(58,844)	(50,595)	(58,844)	(50,595)
Defined benefit pension plans
Accumulated other comprehensive loss
Balance - beginning of period	(60,106)	(51,614)	(61,369)	(52,634)
Amounts reclassified from accumulated other comprehensive loss to net income (loss)	1,262	1,019	2,525	2,039
Balance - end of period	$ (58,844)	$ (50,595)	$ (58,844)	$ (50,595)