Interest and Other Expense (Income), Net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014	Jun. 30, 2013
Other Income and Expenses [Abstract]
Interest income	$ (151)	$ (64)	$ (245)	$ (169)
Interest expense	9,079	11,913	18,298	23,606
Other expense, net	36	1,016	2,200	1,468
Total interest and other expense, net	$ 8,964	$ 12,865	$ 20,253	$ 24,905