Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 29, 2016	Oct. 24, 2015	Oct. 29, 2016	Oct. 24, 2015
Activity in accumulated other comprehensive loss
Balance			$ 547,142
Balance	$ 561,734		561,734
Components of non-controlling interest
Balance as of the beginning of the period	10,244	$ 8,770	10,070	$ 8,954
Net income	272	707	474	1,154
Other comprehensive loss	(73)	(159)	(101)	(790)
Balance as of the end of the period	10,443	9,318	10,443	9,318
Accumulated Other Comprehensive Loss
Activity in accumulated other comprehensive loss
Balance	(33,801)	(34,339)	(34,000)	(32,139)
Changes before reclassifications	(614)	(608)	(1,607)	(3,884)
Amounts reclassified to net income	1,233	1,439	2,572	2,524
Tax effect	(308)	(421)	(455)	(430)
Other comprehensive income (loss) attributable to La-Z-Boy Incorporated	311	410	510	(1,790)
Balance	(33,490)	(33,929)	(33,490)	(33,929)
Translation adjustment
Activity in accumulated other comprehensive loss
Balance	(485)	(697)	(445)	1,517
Changes before reclassifications	(188)	(274)	(228)	(2,488)
Other comprehensive income (loss) attributable to La-Z-Boy Incorporated	(188)	(274)	(228)	(2,488)
Balance	(673)	(971)	(673)	(971)
Change in fair value of cash flow hedge
Activity in accumulated other comprehensive loss
Balance	(761)	(757)	(286)	(560)
Changes before reclassifications	(200)	(269)	(1,479)	(1,055)
Amounts reclassified to net income	424	645	936	1,112
Tax effect	(85)	(144)	207	(22)
Other comprehensive income (loss) attributable to La-Z-Boy Incorporated	139	232	(336)	35
Balance	(622)	(525)	(622)	(525)
Unrealized gain on marketable securities
Activity in accumulated other comprehensive loss
Balance	1,263	1,328	1,058	1,605
Changes before reclassifications	(226)	(65)	100	(341)
Amounts reclassified to net income	(14)	6	(9)	(165)
Tax effect	91	23	(35)	193
Other comprehensive income (loss) attributable to La-Z-Boy Incorporated	(149)	(36)	56	(313)
Balance	1,114	1,292	1,114	1,292
Net pension amortization and net actuarial loss
Activity in accumulated other comprehensive loss
Balance	(33,818)	(34,213)	(34,327)	(34,701)
Amounts reclassified to net income	823	788	1,645	1,577
Tax effect	(314)	(300)	(627)	(601)
Other comprehensive income (loss) attributable to La-Z-Boy Incorporated	509	488	1,018	976
Balance	$ (33,309)	$ (33,725)	$ (33,309)	$ (33,725)