Condensed Consolidated Guarantor Financial Information (Schedule Of Condensed Consolidating Statements Of Income) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jul. 01, 2012		Jun. 26, 2011		Jul. 01, 2012		Apr. 01, 2012	Jun. 26, 2011
Net revenues	$ 383,332		$ 381,168		$ 763,899			$ 726,749
Cost of goods sold	198,968		199,817		395,421			383,351
Gross profit	184,364		181,351		368,478			343,398
Selling, general and administrative expenses	105,951		109,838		218,087			211,548
Research and development expenses	13,702		12,455		25,255			23,486
Goodwill impairment					332,128		332,000
Restructuring and other impairment charges	321		3,176		(1,004)			3,771
Gain on sales of businesses and assets	(332)				(332)
Income (loss) from continuing operations before interest and taxes	64,722		55,882		(205,656)			104,593
Interest expense	18,240		15,785		36,451			31,931
Interest income	(506)		(253)		(984)			(358)
Loss on extinguishments of debt			816					15,413
Income (loss) from continuing operations before taxes	46,988		39,534		(241,123)			57,607
Taxes (benefit) on income (loss) from continuing operations	(278)		8,436		(4,276)			13,009
Income (loss) from continuing operations	47,266		31,098		(236,847)			44,598
Operating income (loss) from discontinued operations	(8,049)		(3,593)		(7,120)			61,117
Taxes (benefit) on income (loss) from discontinued operations	(3,682)	[1]	(6,982)	[1]	(3,358)	[1]		(6,966)	[1]
Income (loss) from discontinued operations	(4,367)		3,389		(3,762)			68,083
Net income	42,899		34,487		(240,609)			112,681
Less: Income from continuing operations attributable to noncontrolling interests	286		258		513			481
Income from discontinued operations attributable to noncontrolling interest			159					318
Net income (loss) attributable to common shareholders	42,613		34,070		(241,122)			111,882
Other comprehensive income (loss) attributable to common shareholders	(62,945)		16,164		(28,902)			48,254
Comprehensive income (loss) attributable to common shareholders	(20,332)		50,234		(270,024)			160,136
Parent Company [Member]
Selling, general and administrative expenses	12,929		9,943		28,569			19,324
Restructuring and other impairment charges			11					11
Gain on sales of businesses and assets	(116,194)				(116,194)
Income (loss) from continuing operations before interest and taxes	103,265		(9,954)		87,625			(19,335)
Interest expense	36,626		27,879		73,101			58,084
Interest income	(128)		(112)		(253)			(114)
Loss on extinguishments of debt			816					15,413
Income (loss) from continuing operations before taxes	66,767		(38,537)		14,777			(92,718)
Taxes (benefit) on income (loss) from continuing operations	(17,209)		(15,850)		(35,061)			(34,621)
Equity in net income of consolidated subsidiaries	(40,616)		61,383		(290,814)			195,873
Income (loss) from continuing operations	43,360		38,696		(240,976)			137,776
Operating income (loss) from discontinued operations	(1,037)		(13,374)		(91)			(51,318)
Taxes (benefit) on income (loss) from discontinued operations	(290)		(8,748)		55			(25,424)
Income (loss) from discontinued operations	(747)		(4,626)		(146)			(25,894)
Net income	42,613		34,070		(241,122)			111,882
Net income (loss) attributable to common shareholders	42,613		34,070		(241,122)			111,882
Other comprehensive income (loss) attributable to common shareholders	(62,945)		16,164		(28,902)			48,254
Comprehensive income (loss) attributable to common shareholders	(20,332)		50,234		(270,024)			160,136
Guarantor Subsidiaries [Member]
Net revenues	235,051		236,923		473,548			455,326
Cost of goods sold	137,054		145,465		278,961			276,719
Gross profit	97,997		91,458		194,587			178,607
Selling, general and administrative expenses	59,789		61,286		121,377			118,947
Research and development expenses	12,012		10,056		21,919			19,433
Goodwill impairment					331,779
Restructuring and other impairment charges	280		1,270		(1,650)			1,858
Income (loss) from continuing operations before interest and taxes	25,916		18,846		(278,838)			38,369
Interest expense	(20,054)		(12,231)		(40,240)			(26,370)
Interest income			(18)		(8)			(41)
Income (loss) from continuing operations before taxes	45,970		31,095		(238,590)			64,780
Taxes (benefit) on income (loss) from continuing operations	16,829		11,211		17,193			24,589
Equity in net income of consolidated subsidiaries	47,764		39,081		78,760			112,120
Income (loss) from continuing operations	76,905		58,965		(177,023)			152,311
Operating income (loss) from discontinued operations	(9,265)		(569)		(9,429)			39,589
Taxes (benefit) on income (loss) from discontinued operations	(3,521)		(1,032)		(3,584)			5,583
Income (loss) from discontinued operations	(5,744)		463		(5,845)			34,006
Net income	71,161		59,428		(182,868)			186,317
Net income (loss) attributable to common shareholders	71,161		59,428		(182,868)			186,317
Other comprehensive income (loss) attributable to common shareholders	(76,659)		(10,275)		(43,257)			(23,420)
Comprehensive income (loss) attributable to common shareholders	(5,498)		49,153		(226,125)			162,897
Non-Guarantor Subsidiaries [Member]
Net revenues	204,785		207,603		409,706			389,461
Cost of goods sold	118,186		115,389		233,622			222,125
Gross profit	86,599		92,214		176,084			167,336
Selling, general and administrative expenses	32,580		38,671		67,831			72,683
Research and development expenses	1,690		2,399		3,336			4,053
Goodwill impairment					349
Restructuring and other impairment charges	41		1,895		646			1,902
Gain on sales of businesses and assets	(332)				(332)
Income (loss) from continuing operations before interest and taxes	52,620		49,249		104,254			88,698
Interest expense	1,668		137		3,590			217
Interest income	(378)		(123)		(723)			(203)
Income (loss) from continuing operations before taxes	51,330		49,235		101,387			88,684
Taxes (benefit) on income (loss) from continuing operations	723		12,753		14,495			24,073
Income (loss) from continuing operations	50,607		36,482		86,892			64,611
Operating income (loss) from discontinued operations	2,253		10,350		2,400			72,846
Taxes (benefit) on income (loss) from discontinued operations	129		2,798		171			12,875
Income (loss) from discontinued operations	2,124		7,552		2,229			59,971
Net income	52,731		44,034		89,121			124,582
Less: Income from continuing operations attributable to noncontrolling interests	286		258		513			481
Income from discontinued operations attributable to noncontrolling interest			159					318
Net income (loss) attributable to common shareholders	52,445		43,617		88,608			123,783
Other comprehensive income (loss) attributable to common shareholders	(62,453)		12,477		(34,766)			28,912
Comprehensive income (loss) attributable to common shareholders	(10,008)		56,094		53,842			152,695
Eliminations [Member]
Net revenues	(56,504)		(63,358)		(119,355)			(118,038)
Cost of goods sold	(56,272)		(61,037)		(117,162)			(115,493)
Gross profit	(232)		(2,321)		(2,193)			(2,545)
Selling, general and administrative expenses	653		(62)		310			594
Gain on sales of businesses and assets	116,194				116,194
Income (loss) from continuing operations before interest and taxes	(117,079)		(2,259)		(118,697)			(3,139)
Income (loss) from continuing operations before taxes	(117,079)		(2,259)		(118,697)			(3,139)
Taxes (benefit) on income (loss) from continuing operations	(621)		322		(903)			(1,032)
Equity in net income of consolidated subsidiaries	(7,148)		(100,464)		212,054			(307,993)
Income (loss) from continuing operations	(123,606)		(103,045)		94,260			(310,100)
Net income	(123,606)		(103,045)		94,260			(310,100)
Net income (loss) attributable to common shareholders	(123,606)		(103,045)		94,260			(310,100)
Other comprehensive income (loss) attributable to common shareholders	139,112		(2,202)		78,023			(5,492)
Comprehensive income (loss) attributable to common shareholders	$ 15,506		$ (105,247)		$ 172,283			$ (315,592)

[1] The provision for income taxes for the three and six months ended July 1, 2012 was impacted favorably by the realization of a tax benefit on impairment of goodwill. The provision for income taxes for the three months ended June 26, 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. In addition, the provision for income taxes for the six months ended June 26, 2011 was further impacted favorably because taxes on the sale of the marine business were incurred at a rate that was significantly lower than the statutory tax rate.