Product Warranties (Details) (USD $)	3 Months Ended
	Jul. 28, 2012	Jul. 30, 2011
Product Warranty Contingency [Line Items]
Percentage of warranty liability relating to Upholstery Group (in hundredths)	90.00%
Movement in product warranty [Roll Forward]
Balance as of the beginning of the period	$ 14,327,000	$ 13,854,000
Accruals during the period	3,390,000	3,660,000
Settlements during the period	(3,398,000)	(3,667,000)
Balance as of the end of the period	14,319,000	13,847,000
Amount of product warranty liability included in accrued expenses and other current liabilities	$ 8,000,000	$ 7,900,000
Fabric and Leather [Member]
Product Warranty Contingency [Line Items]
Warranty term (in years)	1 year
Padding [Member]
Product Warranty Contingency [Line Items]
Warranty term (in years)	5 years
Certain Mechanisms and Frames [Member]
Product Warranty Contingency [Line Items]
Warranty term (in years)	up to a lifetime