Income Taxes - Income Tax (Benefit)/Expense from Continuing Operations (Detail) - USD ($) $ in Thousands		12 Months Ended
		Apr. 30, 2018		Apr. 30, 2017	Apr. 30, 2016
Current:
Federal		$ 5,081		$ 61,943	$ 48,961
State		1,184		9,349	6,622
Total current		6,265		71,292	55,583
Deferred:
Deferred federal		(9,081)		(6,969)	(4,187)
Deferred state		305		(871)	(261)
Total deferred		(8,776)		(7,840)	(4,448)
Total income tax (benefit)/expense	[2]	$ (2,511)	[1]	$ 63,452	$ 51,135

[1] Amounts include an income tax benefit of approximately $8.7 million, primarily caused by the effect of Tax Reform, which resulted in the remeasurement of deferred tax assets and liabilities at lower enacted corporate federal tax rates.

[2] For the years ended April 30, 2018, 2017, and 2016, 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.