Segment Reporting - Schedule of Results by Business Segment (Parenthetical) (Detail) - USD ($) $ in Thousands		3 Months Ended		12 Months Ended
		Apr. 30, 2020	Jan. 31, 2019	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2018
Segment Reporting Information [Line Items]
Additional cost of goods sold	[1]			$ 443,685	$ 412,046	$ 411,098
Goodwill impairment				98,662	10,396
Outdoor Products & Accessories Segment
Segment Reporting Information [Line Items]
Goodwill impairment				98,662	10,396
Operating Segments | Outdoor Products & Accessories Segment
Segment Reporting Information [Line Items]
Additional cost of goods sold	[1]			98,143	97,143	93,822
Goodwill impairment		$ 98,700	$ 10,400	$ 98,700	$ 10,400
Gemini Technologies, Incorporated and Bubba Blade Branded Products from Fish Tales, LLC
Segment Reporting Information [Line Items]
Additional cost of goods sold						$ 500,000

[1] For the years ended April 30, 2020, 2019, and 2018, we allocated all of corporate overhead expenses except for interest and income taxes, such as general and administrative expenses and other corporate-level expenses, to both our Firearms and Outdoor Products & Accessories segments.