Long-Term Debt (Interest Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2015	Jun. 28, 2014	Jul. 04, 2015	Jun. 28, 2014
Debt Disclosure [Abstract]
Contractual interest	$ 4,593	$ 0	$ 5,920	$ 0
Amortization of debt issuance costs and discount	821	0	1,105	0
Total Interest expense related to the Term Loan	$ 5,414	$ 0	$ 7,025	$ 0