Product Warranties (Details) (USD $)	3 Months Ended		9 Months Ended
	Jan. 25, 2014	Jan. 26, 2013	Jan. 25, 2014	Jan. 26, 2013	Apr. 27, 2013
Product Warranty Contingency [Line Items]
Percentage of warranty liability relating to Upholstery Group (in hundredths)			90.00%
Reconciliation of changes in product warranty liability [Roll Forward]
Balance as of the beginning of the period	$ 15,929,000	$ 14,313,000	$ 15,525,000	$ 14,327,000
Accruals during the period	3,026,000	4,143,000	10,698,000	11,050,000
Reclass to discontinued operations	(218,000)	0	(218,000)	0
Settlements during the period	(3,615,000)	(3,692,000)	(10,883,000)	(10,613,000)
Balance as of the end of the period	15,122,000	14,764,000	15,122,000	14,764,000
Amount of product warranty liability included in accrued expenses and other current liabilities	$ 9,200,000		$ 9,200,000		$ 9,500,000
Fabric and Leather [Member]
Product Warranty Contingency [Line Items]
Warranty term			1 year
Padding [Member]
Product Warranty Contingency [Line Items]
Warranty term			1 to 10 years
Certain Mechanisms and Frames [Member]
Product Warranty Contingency [Line Items]
Warranty term			Up to a lifetime
Labor Costs Relating to Parts [Member]
Product Warranty Contingency [Line Items]
Warranty term			1 year