Employee Benefit Plans (Tables)

6 Months Ended

Jul. 02, 2011

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs

The components of the net periodic benefit costs for these plans are as follows:

	Quarter Ended						Six Months Ended
	July 2, 2011			July 3, 2010			July 2, 2011			July 3, 2010
Components of net periodic benefit costs:
Service cost	$	381		$	411		$	762		$	822
Interest cost	2,274			2,248			4,548			4,496
Expected return on plan assets	(1,656		)	(1,498		)	(3,312		)	(2,996		)
Amortization of unrecognized net loss	858			967			1,716			1,934
Amortization of prior service cost	11			20			22			40
Amortization of transition obligation	—			7			—			14
Net periodic benefit costs	$	1,868		$	2,155		$	3,736		$	4,310