Consolidated Statements Of Cash Flows Supplemental Disclosures - USD ($) $ in Thousands	9 Months Ended
	Oct. 02, 2016	Sep. 27, 2015
Statement of Cash Flows [Abstract]
Interest paid on long-term debt	$ 8,941	$ 8,565
Interest paid on lease financing obligations	78	77
Accruals for capital expenditures	3,468	3,084
Income taxes refunded (paid)	3	2,416
Capital lease obligations acquired or incurred	$ 553	$ 0