Valuation and Qualifying Accounts (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Product Liability Reserve
Valuation and qualifying accounts
Balance at Beginning of Period	$ 17,817	$ 18,539	$ 18,786
Additions Charged to Costs and Adjustments	6,239	5,890	6,399
Deductions	(4,938)	(6,612)	(6,646)
Balance at End of Period	19,118	17,817	18,539
Excess and Obsolete Inventory Reserve
Valuation and qualifying accounts
Balance at Beginning of Period	15,267	9,976	9,651
Additions Acquired Businesses		250
Additions Charged to Costs and Adjustments	9,537	14,047	7,397
Deductions	(13,853)	(9,006)	(7,072)
Balance at End of Period	10,951	15,267	9,976
Allowance for Doubtful Accounts
Valuation and qualifying accounts
Balance at Beginning of Period	8,738	8,091	6,942
Additions Charged to Costs and Adjustments	3,127	3,048	4,011
Deductions	(4,032)	(2,401)	(2,862)
Balance at End of Period	7,833	8,738	8,091
Income Tax Valuation Allowance
Valuation and qualifying accounts
Balance at Beginning of Period	7,333	7,173	6,513
Additions Charged to Costs and Adjustments	672	160	660
Balance at End of Period	$ 8,005	$ 7,333	$ 7,173