Reclassifications from Accumulated Other Comprehensive Loss (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Feb. 28, 2015	Mar. 01, 2014	Mar. 02, 2013
Accumulated other comprehensive loss
Balance - beginning of period	$ (37,334)	$ (61,369)	$ (52,634)
Other comprehensive income before reclassifications, net of $7,506, $0, and $0 tax benefit, respectively	(10,578)	19,211	(13,767)
Amounts reclassified from accumulated other comprehensive loss to net income, net of $1,464, $0, and $0 tax expense, respectively	2,062	4,824	5,032
Balance - end of period	(45,850)	(37,334)	(61,369)
Defined benefit pension plans
Accumulated other comprehensive loss
Balance - beginning of period	(37,334)	(61,369)	(52,634)
Other comprehensive income before reclassifications, net of $7,506, $0, and $0 tax benefit, respectively	(10,578)	19,211	(13,767)
Amounts reclassified from accumulated other comprehensive loss to net income, net of $1,464, $0, and $0 tax expense, respectively	2,062	4,824	5,032
Balance - end of period	(45,850)	(37,334)	(61,369)
Other comprehensive income before reclassifications, tax benefit	7,506	0	0
Amounts reclassified from accumulated other comprehensive loss to net income, tax expense	$ 1,464	$ 0	$ 0