Condensed Consolidated Statements Of Income (USD $) In Thousands, except Per Share data	3 Months Ended				9 Months Ended
	Sep. 25, 2011		Sep. 26, 2010		Sep. 25, 2011		Sep. 26, 2010
Condensed Consolidated Statements Of Income [Abstract]
Net revenues	$ 371,891		$ 345,041		$ 1,117,181		$ 1,047,005
Cost of goods sold	193,617		178,477		590,371		535,329
Gross profit	178,274		166,564		526,810		511,676
Selling, general and administrative expenses	102,911		101,542		317,338		296,961
Research and development expenses	12,325		10,571		35,819		30,170
Net gain on sales of businesses and assets			183				183
Restructuring and other impairment charges	(173)		1,141		3,598		1,679
Income from continuing operations before interest, loss on extinguishments of debt and taxes	63,211		53,493		170,055		183,049
Interest expense	19,177		20,047		51,108		58,501
Interest income	(318)		(219)		(676)		(575)
Loss on extinguishments of debt			30,354		15,413		30,354
Income from continuing operations before taxes	44,352		3,311		104,210		94,769
Taxes (benefit) on income from continuing operations	10,600		(7,676)		24,422		18,687
Income from continuing operations	33,752		10,987		79,788		76,082
Operating income from discontinued operations (including gain (loss) on disposal of ($4) and $52,265 for the three and nine month periods in 2011, respectively, and $38,562 for the nine month period in 2010)	13,282		14,143		72,148		74,152
Taxes (benefit) on income from discontinued operations	2,969	[1]	2,595	[1]	(4,810)	[1]	29,215	[1]
Income from discontinued operations	10,313		11,548		76,958		44,937
Net income	44,065		22,535		156,746		121,019
Less: Income from continuing operations attributable to noncontrolling interest	289		226		770		657
Income from discontinued operations attributable to noncontrolling interest	125		113		443		346
Net income attributable to common shareholders	43,651		22,196		155,533		120,016
Basic:
Income from continuing operations	$ 0.82		$ 0.27		$ 1.95		$ 1.89
Income from discontinued operations	$ 0.25		$ 0.29		$ 1.89		$ 1.12
Net income	$ 1.07		$ 0.56		$ 3.85		$ 3.01
Diluted:
Income from continuing operations	$ 0.82		$ 0.27		$ 1.94		$ 1.87
Income from discontinued operations	$ 0.25		$ 0.28		$ 1.88		$ 1.11
Net income	$ 1.07		$ 0.55		$ 3.82		$ 2.98
Dividends per common share	$ 0.34		$ 0.34		$ 1.02		$ 1.02
Weighted average common shares outstanding:
Basic	40,684		39,933		40,426		39,879
Diluted	40,943		40,254		40,738		40,269
Amounts attributable to common shareholders:
Income from continuing operations, net of tax	33,463		10,761		79,018		75,425
Income from discontinued operations, net of tax	10,188		11,435		76,515		44,591
Net income	$ 43,651		$ 22,196		$ 155,533		$ 120,016

[1] The provision for income taxes for the nine months ended September 25, 2011 was impacted favorably by the realization of net tax benefits resulting from the resolution (including the expiration of statutes of limitation) of U.S. federal, state, and foreign tax matters relating to prior years and by the tax on the gain from sale of the marine business being incurred at significantly lower than statutory effective tax rates.