Employee Benefit Plans (Tables)

3 Months Ended

Mar. 29, 2013

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs

Components of net periodic pension cost for the Company’s defined and multiemployer pension plans were as follows:

	Three months ended
	March 29, 2013						March 30, 2012
	U.S. Plan			UK Plan			U.S. Plan			UK Plan
	(in thousands)
Components of net periodic pension cost
Service cost	$	16		$	—		$	19		$	—
Interest cost	130			531			128			581
Expected return on assets	(156		)	(414		)	(144		)	(412		)
Recognized actuarial net loss	73			11			62			23
Total defined benefit net periodic pension cost	63			128			65			192
Multiemployer benefit expense	252			—			278			—
Net periodic pension cost	$	315		$	128		$	343		$	192