Segment and Geographic Data - Sales Information by Product (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2022	Apr. 24, 2021	Apr. 25, 2020
Segment Reporting Information [Line Items]
Net sales	$ 6,499,405	$ 5,912,066	$ 5,490,011
Consumable
Segment Reporting Information [Line Items]
Net sales	5,248,040	4,748,416	4,374,829
Equipment and software
Segment Reporting Information [Line Items]
Net sales	920,424	822,063	749,390
Other
Segment Reporting Information [Line Items]
Net sales	330,941	341,587	365,792
Dental net sales
Segment Reporting Information [Line Items]
Net sales	2,516,132	2,327,021	2,101,922
Dental net sales | Consumable
Segment Reporting Information [Line Items]
Net sales	1,424,677	1,314,236	1,141,189
Dental net sales | Equipment and software
Segment Reporting Information [Line Items]
Net sales	800,144	730,928	677,677
Dental net sales | Other
Segment Reporting Information [Line Items]
Net sales	291,311	281,857	283,056
Animal Health net sales
Segment Reporting Information [Line Items]
Net sales	3,982,874	3,559,994	3,336,253
Animal Health net sales | Consumable
Segment Reporting Information [Line Items]
Net sales	3,823,363	3,434,180	3,233,640
Animal Health net sales | Equipment and software
Segment Reporting Information [Line Items]
Net sales	120,280	91,135	71,713
Animal Health net sales | Other
Segment Reporting Information [Line Items]
Net sales	39,231	34,679	30,900
Corporate net sales
Segment Reporting Information [Line Items]
Net sales	399	25,051	51,836
Corporate net sales | Other
Segment Reporting Information [Line Items]
Net sales	$ 399	$ 25,051	$ 51,836