Discontinued Operations Statement of Operations Information (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Discontinued Operations [Line Items]
Net sales	$ 8,447,000	$ 14,106,000	$ 34,891,000	$ 54,361,000
Income from discontinued operations before income taxes	1,605,000	2,556,000	5,040,000	8,915,000
Income tax expense on discontinued operations	643,000	1,011,000	2,620,000	3,509,000
Gain/(loss) on sale of discontinued operations, net of tax	12,530,000	(92,000)	12,530,000	(5,411,000)
Income/(loss) from discontinued operations, net of taxes	13,492,000	1,453,000	14,950,000	(5,000)
Discontinued operations per share - basic	$ 0.21	$ 0.02	$ 0.23	$ 0.00
Discontinued operations per share - diluted	$ 0.16	$ 0.02	$ 0.23	$ 0.00
Discontinued Operations [Abstract]
Tax effect on income (loss) from discontinued operations	10,700,000	100,000	10,700,000	3,400,000
Income tax benefit	(11,331,000)	(182,000)	(6,987,000)	(4,012,000)
Prior Discontinued Operations [Member]
Discontinued Operations [Line Items]
Income/(loss) from discontinued operations, net of taxes				1,800,000
Discontinued Operations [Abstract]
Tax effect on income (loss) from discontinued operations				$ 1,200,000