Retirement Plans (Tables)

9 Months Ended

Dec. 01, 2012

Retirement Plans

Summary of net periodic pension expense for the defined benefit plans

	Defined Benefit Pension Plan						Nonqualified Executive Retirement Plans				Defined Benefit Pension Plan						Nonqualified Executive Retirement Plans
	Thirteen Week Period Ended										Thirty-Nine Week Period Ended
	December 1, 2012			November 26, 2011			December 1, 2012		November 26, 2011		December 1, 2012			November 26, 2011			December 1, 2012		November 26, 2011
Service cost	$	868		$	838		$	—	$	5	$	2,603		$	2,514		$	—	$	15
Interest cost		1,566			1,518			154		193		4,697			4,554			462		578
Expected return on plan assets		(1,749	)		(1,505	)		—		—		(5,247	)		(4,515	)		—		—
Amortization of unrecognized prior service cost		60			157			—		—		180			471			—		—
Amortization of unrecognized net loss (gain)		960			422			—		—		2,880			1,266			—		—
Net pension expense (income)	$	1,705		$	1,430		$	154	$	198	$	5,113		$	4,290		$	462	$	593