Employee Benefit Plans (Tables)

3 Months Ended

Mar. 30, 2014

Compensation and Retirement Disclosure [Abstract]

Components Of Net Periodic Benefit Costs

Components of net periodic benefit costs were as follows (in thousands):

	Three months ended
	March 30, 2014			March 31, 2013
Pension and SERPA Benefits
Service cost	$	7,874		$	8,997
Interest cost	21,731			19,812
Expected return on plan assets	(34,184		)	(31,832		)
Amortization of unrecognized:
Prior service cost	279			437
Net loss	9,140			14,652
Net periodic benefit cost	$	4,840		$	12,066
Postretirement Healthcare Benefits
Service cost	$	1,754		$	1,965
Interest cost	4,220			3,900
Expected return on plan assets	(2,607		)	(2,384		)
Amortization of unrecognized:
Prior service credit	(963		)	(964		)
Net loss	1,182			2,138
Net periodic benefit cost	$	3,586		$	4,655