Discontinued Operations (Statement of Operations Information) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jun. 27, 2015	Jul. 02, 2016	Jun. 27, 2015
Discontinued Operations and Disposal Groups [Abstract]
Net sales	$ 0	$ 47,498	$ 6,637	$ 92,926
Cost of sales	0	40,290	6,625	79,431
Selling, general and administrative expenses	0	5,030	2,242	10,134
Amortization of intangible assets	0	539	0	1,078
Restructuring and other charges	0	63	1	348
Interest expense, net	0	31	7	64
Other (income) expense, net	0	(44)	238	(429)
Income (loss) from discontinued operations before income taxes	0	1,589	(2,476)	2,300
Loss on sale of discontinued operations before income taxes	(3,304)	0	(1,273)	0
(Loss) income from discontinued operations before income taxes	(3,304)	1,589	(3,749)	2,300
Income tax expense	0	639	1,372	850
(Loss) income from discontinued operations, net of taxes	$ (3,304)	$ 950	$ (5,121)	$ 1,450
Discontinued operations per share - basic	$ (0.39)	$ 0.11	$ (0.60)	$ 0.17
Discontinued operations per share - diluted	$ (0.33)	$ 0.11	$ (0.51)	$ 0.17