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Acquisitions (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jan. 29, 2022
Oct. 30, 2021
Jul. 31, 2021
Jan. 29, 2022
Jan. 23, 2021
Apr. 24, 2021
Asset Acquisition [Line Items]            
Cash consideration paid       $ 19,793 $ 0  
Goodwill $ 140,670     140,670   $ 139,932
Miller Vet Holdings, LLC            
Asset Acquisition [Line Items]            
Cash consideration paid     $ 19,793      
Liabilities assumed     $ 6,799      
Identifiable intangibles 14,000     14,000    
Goodwill 997     997    
Tangible assets 4,796     $ 4,796    
Goodwill (decrease) increase $ 126 $ (192)