Restructuring Reserve And Plant Closures (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Restructuring Cost and Reserve [Line Items]
Sales price of furniture manufacturing facility			$ 13,588,000	$ 196,000
Gain on sale of furniture manufacturing facility	1,346,000	(2,460,000)	9,746,000	(2,460,000)
Income tax expense	5,203,000	6,189,000	10,445,000	5,564,000
Office Furniture [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost			4,800,000
Additional restructuring and transition costs during the remainder of 2014			8,800,000
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Sales price of furniture manufacturing facility			12,000,000
Gain on sale of furniture manufacturing facility			5,700,000
Income tax expense			2,700,000
Facility Closing [Member] | Machinery and Equipment [Member] | Cost of Sales [Member] | Office Furniture [Member]
Restructuring Cost and Reserve [Line Items]
Accelerated depreciation			2,600,000
Transaction Costs [Member] | Office Furniture [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost			800,000
Severance and Facility Exit Costs [Member] | Office Furniture [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost			$ 1,400,000