Employee Benefit Plans

6 Months Ended

May. 31, 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
	May 31, 2015			May 25, 2014			May 31, 2015			May 25, 2014
	(Dollars in thousands)
Net periodic benefit cost:
Service cost	$	2,090		$	2,166		$	62		$	61
Interest cost	11,790			13,776			1,147			1,277
Expected return on plan assets	(12,716		)	(14,036		)	—			—
Amortization of prior service benefit	(15		)	(19		)	—			(2		)
Amortization of actuarial loss	3,163			2,709			1,128			1,087
Curtailment loss	52			4,211			—			33
Net settlement gain	—			(133		)	—			—
Net periodic benefit cost	4,364			8,674			2,337			2,456
Changes in accumulated other comprehensive loss:
Amortization of prior service benefit	15			19			—			2
Amortization of actuarial loss	(3,163		)	(2,709		)	(1,128		)	(1,087		)
Curtailment (loss) gain	(52		)	115			—			—
Net settlement gain	—			29			—			—
Total recognized in accumulated other comprehensive loss	(3,200		)	(2,546		)	(1,128		)	(1,085		)
Total recognized in net periodic benefit cost and accumulated other comprehensive loss	$	1,164		$	6,128		$	1,209		$	1,371

	Pension Benefits						Postretirement Benefits
	Six Months Ended						Six Months Ended
	May 31, 2015			May 25, 2014			May 31, 2015			May 25, 2014
	(Dollars in thousands)
Net periodic benefit cost:
Service cost	$	4,218		$	4,325		$	125		$	129
Interest cost	23,630			27,537			2,294			2,615
Expected return on plan assets	(25,433		)	(27,879		)	—			—
Amortization of prior service benefit	(31		)	(36		)	—			(3		)
Amortization of actuarial loss	6,323			5,405			2,256			2,076
Curtailment loss	387			4,443			—			733
Net settlement gain	—			(73		)	—			—
Net periodic benefit cost	9,094			13,722			4,675			5,550
Changes in accumulated other comprehensive loss:
Amortization of prior service benefit	31			36			—			3
Amortization of actuarial loss	(6,323		)	(5,405		)	(2,256		)	(2,076		)
Curtailment (loss) gain	(387		)	115			—			—
Net settlement gain	—			4			—			—
Total recognized in accumulated other comprehensive loss	(6,679		)	(5,250		)	(2,256		)	(2,073		)
Total recognized in net periodic benefit cost and accumulated other comprehensive loss	$	2,415		$	8,472		$	2,419		$	3,477