Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands		3 Months Ended
		Jul. 25, 2020	Jul. 27, 2019
Activity in accumulated other comprehensive loss
Beginning balance		$ 716,306	$ 696,976
Reclassification of certain income tax effects	[1]		0
Ending balance		714,999	698,138
Components of non-controlling interest
Beginning balance		716,306	696,976
Net income		4,679	17,988
Other comprehensive income		2,218	767
Ending balance		714,999	698,138
Translation adjustment
Activity in accumulated other comprehensive loss
Beginning balance		(1,891)	50
Changes before reclassifications		1,613	128
Reclassification of certain income tax effects			0
Amounts reclassified to net income		0	0
Tax effect		0	0
Other comprehensive income (loss) attributable to La-Z-Boy Incorporated		1,613	128
Ending balance		(278)	178
Components of non-controlling interest
Beginning balance		(1,891)	50
Ending balance		(278)	178
Change in fair value of cash flow hedge
Activity in accumulated other comprehensive loss
Beginning balance		0	87
Changes before reclassifications		0	0
Reclassification of certain income tax effects			(97)
Amounts reclassified to net income		0	5
Tax effect		0	(1)
Other comprehensive income (loss) attributable to La-Z-Boy Incorporated		0	(93)
Ending balance		0	(6)
Components of non-controlling interest
Beginning balance		0	87
Ending balance		0	(6)
Unrealized gain (loss) on marketable securities
Activity in accumulated other comprehensive loss
Beginning balance		449	6
Changes before reclassifications		77	143
Reclassification of certain income tax effects			258
Amounts reclassified to net income		(22)	0
Tax effect		(13)	(35)
Other comprehensive income (loss) attributable to La-Z-Boy Incorporated		42	366
Ending balance		491	372
Components of non-controlling interest
Beginning balance		449	6
Ending balance		491	372
Net pension amortization and net actuarial loss
Activity in accumulated other comprehensive loss
Beginning balance		(5,510)	(3,605)
Changes before reclassifications		0	0
Reclassification of certain income tax effects			(708)
Amounts reclassified to net income		87	55
Tax effect		(22)	(14)
Other comprehensive income (loss) attributable to La-Z-Boy Incorporated		65	(667)
Ending balance		(5,445)	(4,272)
Components of non-controlling interest
Beginning balance		(5,510)	(3,605)
Ending balance		(5,445)	(4,272)
Accumulated other comprehensive loss
Activity in accumulated other comprehensive loss
Beginning balance		(6,952)	(3,462)
Changes before reclassifications		1,690	271
Reclassification of certain income tax effects	[1]		(547)
Amounts reclassified to net income		65	60
Tax effect		(35)	(50)
Other comprehensive income (loss) attributable to La-Z-Boy Incorporated		1,720	(266)
Ending balance		(5,232)	(3,728)
Components of non-controlling interest
Beginning balance		(6,952)	(3,462)
Other comprehensive income		1,720	281
Ending balance		(5,232)	(3,728)
Non-Controlling Interests
Activity in accumulated other comprehensive loss
Beginning balance		15,553	14,468
Ending balance		7,425	14,873
Components of non-controlling interest
Beginning balance		15,553	14,468
Net income		(119)	(81)
Other comprehensive income		498	486
Dividends distributed to joint venture minority partners		(8,507)	0
Ending balance		$ 7,425	$ 14,873

[1] Income tax effects of the Tax Cuts and Jobs Act are reclassified from Accumulated Other Comprehensive Income ("AOCI") to retained earnings due to the adoption of ASU 2018-02.