Retirement Plans (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 01, 2013	Jun. 02, 2012
Defined Benefit Pension Plan
Net periodic pension expense
Service cost	$ 829	$ 868
Interest cost	1,551	1,566
Expected return on plan assets	(1,779)	(1,749)
Amortization of unrecognized prior service cost	60	60
Amortization of unrecognized net loss	1,203	960
Net pension expense	1,864	1,705
Change in plan assets:
Expected employer contribution during the remainder of fiscal 2014	0
Nonqualified Executive Retirement Plan
Net periodic pension expense
Interest cost	136	154
Net pension expense	136	154
Change in plan assets:
Employer contributions	404
Expected employer contribution during the remainder of fiscal 2014	$ 1,258