Selected Quarterly Financial Information (Unaudited) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Valuation Allowance [Line Items]
Net sales	$ 442,781,000	$ 437,168,000	$ 1,267,935,000	$ 1,300,593,000
Operating income	16,524,000	32,282,000	45,044,000	69,535,000
Income/(loss) from continuing operations	10,491,000	3,022,000	(28,995,000)	(23,139,000)
Income/(loss) from discontinued operations, net of taxes	13,492,000	1,453,000	14,950,000	(5,000)
Net income/(loss)	23,983,000	4,475,000	(14,045,000)	(23,144,000)
Income (Loss) from Continuing Operations, Per Basic Share	$ 0.16	$ 0.05	$ (0.45)	$ (0.36)
Discontinued operations per share - basic	$ 0.21	$ 0.02	$ 0.23	$ 0.00
Net income (loss) per share - basic	$ 0.37	$ 0.07	$ (0.22)	$ (0.36)
Income (Loss) from Continuing Operations, Per Diluted Share	$ 0.13	$ 0.04	$ (0.45)	$ (0.36)
Discontinued operations per share - diluted	$ 0.16	$ 0.02	$ 0.23	$ 0.00
Net income (loss) per share - diluted	$ 0.29	$ 0.06	$ (0.22)	$ (0.36)
Selected Quarterly Financial Information [Abstract]
Gain/(loss) on sale of discontinued operations, net of tax	12,530,000	(92,000)	12,530,000	(5,411,000)
Tax effect on income (loss) from discontinued operations	$ (10,700,000)	$ (100,000)	$ (10,700,000)	$ (3,400,000)