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Discontinued Operations - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended
Oct. 31, 2020
Oct. 31, 2019
Oct. 31, 2020
Oct. 31, 2019
Aug. 24, 2020
Aug. 10, 2020
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]            
Reverse stock split description     one share of AOUT common stock for every four shares of our common stock      
Business separation expenses     $ 8,400,000      
Income/(loss) from discontinued operations, net of tax $ 3,123,000 $ 950,000 8,209,000 $ (3,343,000)    
Outdoor Products and Accessories Business            
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]            
Income/(loss) from discontinued operations, net of tax 3,100,000 $ 950,000 8,200,000 $ (3,300,000)    
American Outdoor Brands Inc.            
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]            
Stockholders ownership percentage         0.00% 100.00%
Gain/(loss) recognized on Separation     0      
Cash distributed for Separation     25,000,000.0      
Divested net assets $ 260,400,000   $ 260,400,000