Employee Benefit Plans

9 Months Ended

Aug. 30, 2015

Compensation and Retirement Disclosure [Abstract]

EMPLOYEE BENEFIT PLANS

EMPLOYEE BENEFIT PLANS

The following table summarizes the components of net periodic benefit cost and the changes recognized in “Accumulated other comprehensive loss” for the Company’s defined benefit pension plans and postretirement benefit plans:

	Pension Benefits						Postretirement Benefits
	Three Months Ended						Three Months Ended
	August 30, 2015			August 24, 2014			August 30, 2015			August 24, 2014
	(Dollars in thousands)
Net periodic benefit cost:
Service cost	$	2,092		$	2,106		$	63		$	63
Interest cost	11,796			13,775			1,147			1,292
Expected return on plan assets	(12,715		)	(13,909		)	—			—
Amortization of prior service benefit	(15		)	—			—			(1		)
Amortization of actuarial loss	3,149			2,692			1,127			1,063
Curtailment gain	(118		)	(1,790		)	—			—
Net settlement gain	(45		)	—			—			—
Net periodic benefit cost	4,144			2,874			2,337			2,417
Changes in accumulated other comprehensive loss:
Actuarial loss	(579		)	—			—			—
Amortization of prior service benefit	15			—			—			1
Amortization of actuarial loss	(3,149		)	(2,692		)	(1,127		)	(1,063		)
Curtailment gain (loss)	118			(1		)	—			—
Net settlement gain	45			—			—			—
Total recognized in accumulated other comprehensive loss	(3,550		)	(2,693		)	(1,127		)	(1,062		)
Total recognized in net periodic benefit cost and accumulated other comprehensive loss	$	594		$	181		$	1,210		$	1,355

	Pension Benefits						Postretirement Benefits
	Nine Months Ended						Nine Months Ended
	August 30, 2015			August 24, 2014			August 30, 2015			August 24, 2014
	(Dollars in thousands)
Net periodic benefit cost:
Service cost	$	6,310		$	6,431		$	188		$	192
Interest cost	35,426			41,312			3,441			3,907
Expected return on plan assets	(38,148		)	(41,788		)	—			—
Amortization of prior service benefit	(46		)	(36		)	—			(4		)
Amortization of actuarial loss	9,472			8,097			3,383			3,139
Curtailment loss	269			2,653			—			733
Net settlement gain	(45		)	(73		)	—			—
Net periodic benefit cost	13,238			16,596			7,012			7,967
Changes in accumulated other comprehensive loss:
Actuarial loss	(579		)	—			—			—
Amortization of prior service benefit	46			36			—			4
Amortization of actuarial loss	(9,472		)	(8,097		)	(3,383		)	(3,139		)
Curtailment (loss) gain	(269		)	114			—			—
Net settlement gain	45			4			—			—
Total recognized in accumulated other comprehensive loss	(10,229		)	(7,943		)	(3,383		)	(3,135		)
Total recognized in net periodic benefit cost and accumulated other comprehensive loss	$	3,009		$	8,653		$	3,629		$	4,832