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Goodwill and Intangible Assets - Schedule of Future Expected Amortization Expense (Detail) - USD ($)
$ in Thousands
Jan. 31, 2020
Apr. 30, 2019
Finite-Lived Intangible Assets [Line Items]    
Total definite-lived intangible assets, Net Carrying Amount $ 78,016 $ 91,614
Outdoor Products & Accessories Segment    
Finite-Lived Intangible Assets [Line Items]    
2020 4,857  
2021 16,795  
2022 14,410  
2023 11,855  
2024 10,107  
Thereafter 18,947  
Total definite-lived intangible assets, Net Carrying Amount $ 76,971