Interest and Other Expense (Income), Net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Apr. 01, 2012
Other Income and Expenses [Abstract]
Interest income	$ (105)	$ (210)
Interest expense	11,693	11,437
Other expense, net	452	1,603
Total interest and other expense, net	$ 12,040	$ 12,830