Derivatives - Activity in Accumulated Other Comprehensive Items (OCI) (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2016	Apr. 04, 2015
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Loss recognized in AOCI	$ (126)	$ (508)
Net unrealized loss included in OCI expected to be reclassified to earnings over the next 12 months	272
Cash Flow Hedging [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Unrealized loss, net of tax, at January 2, 2016	(229)
Loss reclassified to earnings	113
Loss recognized in AOCI	(239)
Unrealized loss, net of tax, at April 2, 2016	(355)
Cash Flow Hedging [Member] | Interest Rate Swap Agreements [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Unrealized loss, net of tax, at January 2, 2016	(162)
Loss reclassified to earnings	57
Loss recognized in AOCI	(144)
Unrealized loss, net of tax, at April 2, 2016	(249)
Cash Flow Hedging [Member] | Foreign Exchange Forward [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Unrealized loss, net of tax, at January 2, 2016	(67)
Loss reclassified to earnings	56
Loss recognized in AOCI	(95)
Unrealized loss, net of tax, at April 2, 2016	$ (106)