Retirement Plans (Tables)

3 Months Ended

Apr. 01, 2012

Defined Benefit Pension Plans [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule Of Net Periodic Pension Cost

	For the Three Months Ended
	April 1,  2012			April 3,  2011
	(in thousands)
Service cost	$	722		$	769
Interest cost		4,083			4,327
Expected return on plan assets		(4,087	)		(3,913	)
Amortization of unrecognized:
Prior service cost		58			155
Total net periodic pension cost	$	776		$	1,338

Post-Retirement Benefit Plans [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule Of Net Periodic Pension Cost

	For the Three Months Ended
	April 1, 2012			April 3, 2011
	(in thousands)
Service cost	$	19		$	16
Interest cost		110			136
Amortization of unrecognized:
Prior service benefit		(150	)		(149	)
Total net periodic post-retirement (benefit) cost	$	(21	)	$	3