Condensed Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Apr. 01, 2012	Mar. 27, 2011
Condensed Consolidated Statements Of Income [Abstract]
Net revenues	$ 387,757	$ 354,004
Cost of goods sold	201,922	189,500
Gross profit	185,835	164,504
Selling, general and administrative expenses	113,378	103,206
Research and development expenses	11,562	11,038
Goodwill impairment	332,128
Restructuring and other impairment charges	(838)	595
Income (loss) from continuing operations before interest, loss on extinguishments of debt and taxes	(270,395)	49,665
Interest expense	18,211	16,146
Interest income	(478)	(105)
Loss on extinguishments of debt		14,597
Income (loss) from continuing operations before taxes	(288,128)	19,027
Taxes (benefit) on income from continuing operations	(4,019)	4,915
Income (loss) from continuing operations	(284,109)	14,112
Operating income from discontinued operations (including gain on disposal of $56,773 in 2011)	946	63,756
Taxes (benefit) on income from discontinued operations	345	(326)
Income from discontinued operations	601	64,082
Net income (loss)	(283,508)	78,194
Less: Income from continuing operations attributable to noncontrolling interest	227	223
Income from discontinued operations attributable to noncontrolling interest		159
Net income (loss) attributable to common shareholders	(283,735)	77,812
Basic:
Income (loss) from continuing operations	$ (6.97)	$ 0.35
Income from discontinued operations	$ 0.01	$ 1.59
Net income (loss)	$ (6.96)	$ 1.94
Diluted:
Income (loss) from continuing operations	$ (6.97)	$ 0.34
Income from discontinued operations	$ 0.01	$ 1.58
Net income (loss)	$ (6.96)	$ 1.92
Dividends per share	$ 0.34	$ 0.34
Weighted average common shares outstanding:
Basic	40,769	40,057
Diluted	40,769	40,424
Amounts attributable to common shareholders:
Income (loss) from continuing operations, net of tax	(284,336)	13,889
Income from discontinued operations, net of tax	601	63,923
Net income (loss)	$ (283,735)	$ 77,812