Retirement Plans (Tables)

6 Months Ended

Aug. 30, 2014

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											Twenty-Six Week Period Ended
	August 30, 2014			August 31, 2013			August 30, 2014		August 31, 2013		August 30, 2014				August 31, 2013				August 30, 2014				August 31, 2013
Service cost	$	792		$	830		$	—	$	—	$		1,585		$	1,660		$			—	$		—
Interest cost		1,631			1,551			135		135			3,262			3,102					270			271
Expected return on plan assets		(1,929	)		(1,779	)		—		—			(3,858	)		(3,558	)				—			—
Amortization of unrecognized prior service cost		60			60			—		—			120			120					—			—
Amortization of unrecognized net loss		600			1,202			—		—			1,199			2,405					—			—
Net pension expense	$	1,154		$	1,864		$	135	$	135	$		2,308		$	3,729		$			270	$		271