Product Warranty Costs (Details) (USD $)	12 Months Ended
	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012	Oct. 12, 2010
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Balance at beginning of period	$ 93,207,000	$ 97,471,000	$ 101,163,000
Provision for warranties issued and changes in estimates for pre-existing warranties	4,658,000	4,040,000	4,098,000
Claims paid	(6,816,000)	(7,383,000)	(8,133,000)
Foreign currency translation	(1,109,000)	(921,000)	343,000
Balance at end of period	89,940,000	93,207,000	97,471,000
Product Warranty Accrual, Fair Value Adjustment, Net of Amortization	$ 6,300,000			$ 9,500,000