Employee Benefit Plans Employee Benefit plans (Schedule of Accumulated Other Comprehensive Loss That Have Not Yet Been Recognized as Components of Net Periodic Benefit Cost) (Details) (USD $) In Thousands, unless otherwise specified	Feb. 28, 2015	Mar. 01, 2014
Compensation and Retirement Disclosure [Abstract]
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax	$ 6,857	$ 4,569
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax	$ (6,857)	$ (4,569)