Retirement Plans (Tables)

9 Months Ended

Nov. 30, 2013

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
	November 30, 2013			December 1, 2012			November 30, 2013		December 1, 2012		November 30, 2013			December 1, 2012			November 30, 2013		December 1, 2012
Service cost	$	830		$	868		$	—	$	—	$	2,490		$	2,603		$	—	$	—
Interest cost		1,551			1,566			136		154		4,653			4,697			407		462
Expected return on plan assets		(1,780	)		(1,749	)		—		—		(5,338	)		(5,246	)		—		—
Amortization of unrecognized prior service cost		60			60			—		—		180			180			—		—
Amortization of unrecognized net loss		1,203			960			—		—		3,608			2,879			—		—
Net pension expense	$	1,864		$	1,705		$	136	$	154	$	5,593		$	5,113		$	407	$	462