Pension Benefits (Tables)

3 Months Ended

Mar. 31, 2013

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Components Of Net Periodic Benefit Cost

The components of net periodic benefit cost for the three months ended March 31, 2013 and March 25, 2012 were as follows:

	Quarter
	(13 weeks) Ended
(amounts in thousands)	March 31, 2013		March 25, 2012
Service cost	$	268	$	217
Interest cost	879		986
Expected return on plan assets	26		10
Amortization of actuarial loss	389		57
Amortization of transition obligation	—		14
Amortization of prior service costs	1		1
Net periodic pension cost	$	1,563	$	1,285