Discontinued Operations (Components of Assets and Liabilities) (Details) - USD ($) $ in Thousands	Sep. 26, 2015	Dec. 27, 2014
Discontinued Operations and Disposal Groups [Abstract]
Accounts receivable, net	$ 28,649	$ 29,344
Inventories	21,017	18,119
Other current assets	6,715	5,106
Assets of discontinued operations - current	56,381	52,569
Property, plant and equipment, net	48,786	54,585
Goodwill and other long-term assets	29,183	32,028
Assets of discontinued operations - long-term	77,969	86,613
Accounts payable	22,008	19,145
Other current liabilities	4,870	5,058
Liabilities of discontinued operations - current	26,878	24,203
Long-term debt and other liabilities	2,014	3,520
Liabilities of discontinued operations - long-term	2,014	3,520
Net assets of discontinued operations	$ 105,458	$ 111,459