Summary of Significant Accounting Policies (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
General Accounting Policies [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 16,000,000	$ 20,000,000	$ 19,400,000
Available-for-sale Securities, Gross Unrealized Gain	200,000	300,000	200,000
Available-for-sale Securities, Gross Unrealized Loss	(100,000)	0	0
Allowance for doubtful accounts receivable, current	6,200,000	5,200,000	4,800,000
Percentage of LIFO inventory	74.00%	70.00%	67.00%
Effect of LIFO inventory, decrease in cost of goods sold	200,000	800,000
Inventory, LIFO Reserve	27,722,000	25,472,000	25,901,000
Net intangible assets	94,635,000	86,874,000	64,027,000
Standard Product Warranty Accrual, Current	6,700,000	6,300,000	6,300,000
Standard Product Warranty Accrual, Noncurrent	7,100,000	6,700,000	6,600,000
Product development costs	27,300,000	26,900,000	23,100,000
Freight expense	123,800,000	122,100,000	112,300,000
Undistributed Earnings of Foreign Subsidiaries	26,200,000
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount	7,900,000
Antidilutive securities excluding from computation of earnings per share	769,394	1,760,220	1,969,085
Insurance liabilities	$ 28,200,000
Land Improvements [Member] | Minimum [Member]
General Accounting Policies [Line Items]
Useful life, minimum	10 years
Land Improvements [Member] | Maximum [Member]
General Accounting Policies [Line Items]
Useful life, minimum	20 years
Buildings [Member] | Minimum [Member]
General Accounting Policies [Line Items]
Useful life, minimum	10 years
Buildings [Member] | Maximum [Member]
General Accounting Policies [Line Items]
Useful life, minimum	40 years
Machinery and Equipment [Member] | Minimum [Member]
General Accounting Policies [Line Items]
Useful life, minimum	3 years
Machinery and Equipment [Member] | Maximum [Member]
General Accounting Policies [Line Items]
Useful life, minimum	12 years