v3.22.2.2
Segment Reporting - Information about Reportable Segments (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Oct. 29, 2022
Oct. 30, 2021
Oct. 29, 2022
Oct. 30, 2021
Apr. 30, 2022
Segment Reporting Information [Line Items]          
Net sales $ 1,626,204 $ 1,649,161 $ 3,149,469 $ 3,264,037  
Operating income (loss) 60,095 62,860 94,939 23,331  
Total assets 2,880,468   2,880,468   $ 2,741,630
Consumable          
Segment Reporting Information [Line Items]          
Net sales 1,301,256 1,344,812 2,563,025 2,686,486  
Equipment and software          
Segment Reporting Information [Line Items]          
Net sales 243,896 223,813 417,831 407,265  
Value-added services and other          
Segment Reporting Information [Line Items]          
Net sales 81,052 80,536 168,613 170,286  
Dental          
Segment Reporting Information [Line Items]          
Net sales 628,923 622,215 1,186,840 1,229,082  
Dental | Operating Segments          
Segment Reporting Information [Line Items]          
Operating income (loss) 60,950 55,570 97,845 54,484  
Total assets 898,391   898,391   851,746
Dental | Consumable          
Segment Reporting Information [Line Items]          
Net sales 337,489 356,654 675,329 733,230  
Dental | Equipment and software          
Segment Reporting Information [Line Items]          
Net sales 214,006 193,437 360,516 350,403  
Dental | Value-added services and other          
Segment Reporting Information [Line Items]          
Net sales 77,428 72,124 150,995 145,449  
Animal Health          
Segment Reporting Information [Line Items]          
Net sales 1,002,996 1,027,467 1,963,366 2,030,257  
Animal Health | Operating Segments          
Segment Reporting Information [Line Items]          
Operating income (loss) 28,316 26,135 50,175 49,940  
Total assets 1,567,024   1,567,024   1,459,450
Animal Health | Consumable          
Segment Reporting Information [Line Items]          
Net sales 963,767 988,158 1,887,696 1,953,256  
Animal Health | Equipment and software          
Segment Reporting Information [Line Items]          
Net sales 29,890 30,376 57,315 56,862  
Animal Health | Value-added services and other          
Segment Reporting Information [Line Items]          
Net sales 9,339 8,933 18,355 20,139  
Corporate          
Segment Reporting Information [Line Items]          
Net sales (5,715) (521) (737) 4,698  
Corporate | Operating Segments          
Segment Reporting Information [Line Items]          
Operating income (loss) (29,171) (18,845) (53,081) (81,093)  
Total assets 415,053   415,053   $ 430,434
Corporate | Value-added services and other          
Segment Reporting Information [Line Items]          
Net sales (5,715) (521) (737) 4,698  
United States          
Segment Reporting Information [Line Items]          
Net sales 1,375,622 1,363,753 2,636,020 2,677,525  
United States | Dental          
Segment Reporting Information [Line Items]          
Net sales 575,520 561,574 1,075,355 1,102,647  
United States | Animal Health          
Segment Reporting Information [Line Items]          
Net sales 805,817 802,700 1,561,402 1,570,180  
United States | Corporate          
Segment Reporting Information [Line Items]          
Net sales (5,715) (521) (737) 4,698  
United Kingdom          
Segment Reporting Information [Line Items]          
Net sales 157,125 184,006 319,346 376,753  
United Kingdom | Animal Health          
Segment Reporting Information [Line Items]          
Net sales 157,125 184,006 319,346 376,753  
Canada          
Segment Reporting Information [Line Items]          
Net sales 93,457 101,402 194,103 209,759  
Canada | Dental          
Segment Reporting Information [Line Items]          
Net sales 53,403 60,641 111,485 126,435  
Canada | Animal Health          
Segment Reporting Information [Line Items]          
Net sales $ 40,054 $ 40,761 $ 82,618 $ 83,324