Commitments And Contingencies (Details)	3 Months Ended		6 Months Ended					6 Months Ended
	Jul. 02, 2011 USD ($)	Jul. 03, 2010 USD ($)	Jul. 02, 2011 USD ($)	Jul. 03, 2010 USD ($)	Jul. 02, 2011 CAD	Jan. 01, 2011 USD ($)	Jan. 01, 2011 Silzone Product Liability Insurance [Member] USD ($)	Jul. 02, 2011 British Columbia Class Action Matters [Member]	Jul. 02, 2011 Ontario Class Action Matters [Member]
Number of outstanding class actions								1	2
Outstanding class actions	$ 2,100,000,000		$ 2,100,000,000		2,000,000,000
Silzone legal accrual	23,832,000		23,832,000			24,032,000
Silzone insurance receivable	14,700,000		14,700,000			12,799,000
Remaining insurance coverage for Silzone claims							30,000,000
Product warranty liability beginning	26,941,000	21,157,000	25,127,000	19,911,000
Warranty expense recognized	3,282,000	1,645,000	5,668,000	3,382,000
Warranty credits issued	(1,255,000)	(589,000)	(1,827,000)	(1,080,000)
Product warranty liability ending	28,968,000	22,213,000	28,968,000	22,213,000
Estimated future contingent consideration	$ 25,800,000		$ 25,800,000