Segment and Geographic Data - Information about Reportable Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2022	Apr. 24, 2021	Apr. 25, 2020
Segment Reporting Information [Line Items]
Operating income (loss)	$ 157,002	$ 210,607	$ (572,119)
Depreciation and amortization	81,992	76,549	82,182
Total assets	2,741,630	2,751,511
Dental net sales
Segment Reporting Information [Line Items]
Operating income (loss)	180,212	201,244	168,304
Depreciation and amortization	13,495	7,774	8,434
Total assets	851,746	863,718
Animal Health net sales
Segment Reporting Information [Line Items]
Operating income (loss)	114,403	88,123	(594,743)
Depreciation and amortization	44,561	45,771	49,958
Total assets	1,459,450	1,391,892
Corporate net sales
Segment Reporting Information [Line Items]
Operating income (loss)	(137,613)	(78,760)	(145,680)
Depreciation and amortization	23,936	23,004	$ 23,790
Total assets	$ 430,434	$ 495,901