Fair Value Measurements (Details) - USD ($) $ in Thousands	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cash and cash equivalents	$ 39,105	$ 35,373	$ 14,080	$ 9,276
Restricted cash	966	966
Total assets	40,071	36,339
Derivative, Fair Value, Net	1,045	438
Liabilities, Fair Value Disclosure, Recurring	1,045	438
Debt Instrument, Fair Value Disclosure	391,000	453,000
Fair Value, Inputs, Level 1 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cash and cash equivalents	39,105	35,373
Restricted cash	966	966
Total assets	40,071	36,339
Derivative, Fair Value, Net	0	0
Liabilities, Fair Value Disclosure, Recurring	0	0
Fair Value, Inputs, Level 2 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cash and cash equivalents	0	0
Restricted cash	0	0
Total assets	0	0
Derivative, Fair Value, Net	1,045	438
Liabilities, Fair Value Disclosure, Recurring	1,045	438
Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Cash and cash equivalents	0	0
Restricted cash	0	0
Total assets	0	0
Derivative, Fair Value, Net	0	0
Liabilities, Fair Value Disclosure, Recurring	$ 0	$ 0