Revenue Recognition - Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 25, 2020	Jan. 26, 2019	Jan. 25, 2020	Jan. 26, 2019
Revenue Recognition
Consolidated net sales	$ 475,856	$ 467,582	$ 1,336,701	$ 1,291,610
Upholstery
Revenue Recognition
Consolidated net sales	262,835	265,487	746,851	759,569
Casegoods
Revenue Recognition
Consolidated net sales	22,583	23,129	68,561	73,774
Retail
Revenue Recognition
Consolidated net sales	167,494	159,417	458,894	418,331
Corporate & Other
Revenue Recognition
Consolidated net sales	22,944	19,549	62,395	39,936
Operating Segments
Revenue Recognition
Consolidated net sales	557,974	544,779	1,565,033	1,500,190
Operating Segments | Motion Upholstery Furniture
Revenue Recognition
Consolidated net sales	312,741	312,863	859,121	863,382
Operating Segments | Stationary Upholstery Furniture
Revenue Recognition
Consolidated net sales	163,002	150,143	470,355	408,610
Operating Segments | Bedroom Furniture
Revenue Recognition
Consolidated net sales	11,131	10,329	34,024	31,692
Operating Segments | Dining Room Furniture
Revenue Recognition
Consolidated net sales	9,617	9,440	27,128	26,790
Operating Segments | Occasional Furniture
Revenue Recognition
Consolidated net sales	18,666	18,980	53,173	55,033
Operating Segments | Other
Revenue Recognition
Consolidated net sales	42,817	43,024	121,232	114,683
Operating Segments | Upholstery
Revenue Recognition
Consolidated net sales	336,696	334,448	950,967	944,939
Operating Segments | Upholstery | Motion Upholstery Furniture
Revenue Recognition
Consolidated net sales	212,079	212,631	588,820	602,458
Operating Segments | Upholstery | Stationary Upholstery Furniture
Revenue Recognition
Consolidated net sales	96,429	94,551	281,699	272,087
Operating Segments | Upholstery | Occasional Furniture
Revenue Recognition
Consolidated net sales	383	391	1,083	1,202
Operating Segments | Upholstery | Other
Revenue Recognition
Consolidated net sales	27,805	26,875	79,365	69,192
Operating Segments | Casegoods
Revenue Recognition
Consolidated net sales	28,115	28,065	84,640	87,828
Operating Segments | Casegoods | Stationary Upholstery Furniture
Revenue Recognition
Consolidated net sales	4,131	3,844	12,873	12,215
Operating Segments | Casegoods | Bedroom Furniture
Revenue Recognition
Consolidated net sales	7,772	7,447	24,711	24,045
Operating Segments | Casegoods | Dining Room Furniture
Revenue Recognition
Consolidated net sales	5,981	5,733	17,656	18,068
Operating Segments | Casegoods | Occasional Furniture
Revenue Recognition
Consolidated net sales	11,619	12,292	33,988	38,003
Operating Segments | Casegoods | Other
Revenue Recognition
Consolidated net sales	(1,388)	(1,251)	(4,588)	(4,503)
Operating Segments | Retail
Revenue Recognition
Consolidated net sales	167,494	159,417	458,894	418,331
Operating Segments | Retail | Motion Upholstery Furniture
Revenue Recognition
Consolidated net sales	100,662	100,232	270,301	260,924
Operating Segments | Retail | Stationary Upholstery Furniture
Revenue Recognition
Consolidated net sales	33,348	27,652	96,306	76,517
Operating Segments | Retail | Bedroom Furniture
Revenue Recognition
Consolidated net sales	1,517	1,586	4,513	3,891
Operating Segments | Retail | Dining Room Furniture
Revenue Recognition
Consolidated net sales	3,040	3,097	8,036	7,293
Operating Segments | Retail | Occasional Furniture
Revenue Recognition
Consolidated net sales	6,148	5,959	16,728	15,000
Operating Segments | Retail | Other
Revenue Recognition
Consolidated net sales	22,779	20,891	63,010	54,706
Corporate and Other | Corporate & Other
Revenue Recognition
Consolidated net sales	25,669	22,849	70,532	49,092
Corporate and Other | Corporate & Other | Stationary Upholstery Furniture
Revenue Recognition
Consolidated net sales	29,094	24,096	79,477	47,791
Corporate and Other | Corporate & Other | Bedroom Furniture
Revenue Recognition
Consolidated net sales	1,842	1,296	4,800	3,756
Corporate and Other | Corporate & Other | Dining Room Furniture
Revenue Recognition
Consolidated net sales	596	610	1,436	1,429
Corporate and Other | Corporate & Other | Occasional Furniture
Revenue Recognition
Consolidated net sales	516	338	1,374	828
Corporate and Other | Corporate & Other | Other
Revenue Recognition
Consolidated net sales	(6,379)	(3,491)	(16,555)	(4,712)
Eliminations
Revenue Recognition
Consolidated net sales	(82,118)	(77,197)	(228,332)	(208,580)
Eliminations | Upholstery
Revenue Recognition
Consolidated net sales	73,861	68,961	204,116	185,370
Eliminations | Casegoods
Revenue Recognition
Consolidated net sales	5,532	4,936	16,079	14,054
Eliminations | Corporate & Other
Revenue Recognition
Consolidated net sales	$ 2,725	$ 3,300	$ 8,137	$ 9,156