Commitments And Contingencies (Details)	3 Months Ended		9 Months Ended		12 Months Ended			9 Months Ended			6 Months Ended
	Oct. 01, 2011 USD ($)	Oct. 02, 2010 USD ($)	Oct. 01, 2011 USD ($)	Oct. 02, 2010 USD ($)	Jan. 01, 2011 USD ($)	Oct. 01, 2011 CAD	Jan. 01, 2011 USD ($)	Oct. 01, 2011 Minimum [Member] Minnesota State Court Lawsuit [Member] USD ($)	Oct. 01, 2011 Minimum [Member] Nevada Federal Court Lawsuit [Member] USD ($)	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]
Commitments And Contingencies [Line Items]
Number of outstanding class actions											1	2
Outstanding class actions	$ 1,900,000,000		$ 1,900,000,000			2,000,000,000
Damages requested in court								50,000	75,000
Silzone legal accrual	23,714,000		23,714,000				24,032,000
Silzone insurance receivable	15,808,000		15,808,000				12,799,000
Remaining insurance coverage for Silzone claims										30,000,000
Number of insurance carriers					2
Product warranty liability beginning	28,968,000	22,213,000	25,127,000	19,911,000	19,911,000
Warranty expense recognized	2,191,000	2,154,000	7,859,000	5,536,000
Warranty credits issued	(1,462,000)	(575,000)	(3,289,000)	(1,655,000)
Product warranty liability ending	29,697,000	23,792,000	29,697,000	23,792,000
Estimated future contingent consideration	$ 25,700,000		$ 25,700,000