Consolidated Statements Of Cash Flows Supplemental Disclosures - USD ($) $ in Thousands	9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014
Statement of Cash Flows [Abstract]
Interest paid on long-term debt	$ 8,565	$ 9,019
Interest paid on lease financing obligations	77	77
Accruals for capital expenditures	3,084	2,514
Income Taxes Refunded	2,416	41
Non-cash reduction of capital lease assets and obligation	$ 0	$ 1,055