Employee Benefit and Retirement Plans (Narrative) (Details) $ in Thousands	12 Months Ended
	Apr. 30, 2016 USD ($) plan	Apr. 30, 2015 USD ($)	Apr. 30, 2014 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Recognized expenses for profit-sharing contributions	$ 2,900	$ 1,800	$ 800
401(k) contributions, percent match of employee's annual contribution			100.00%
Effective maximum contribution of base earnings			4.00%
Expense for 401(k) matching contributions	$ 6,600	5,600	$ 4,100
Number of defined benefit pension plans | plan	2
Accumulated other comprehensive loss	$ 77,500
Accumulated other comprehensive loss, net of tax	47,285	40,857
Expected recognized net actuarial losses in net periodic pension benefit cost, before tax	1,800
Expected recognized net actuarial losses in net periodic pension benefit cost, after tax	1,100
Accumulated benefit obligation	174,100	170,000
Expected company contributions to pension plan in 2015	7,300
Company contributions	$ 5,016	$ 4,269
Plan asset actual allocation	100.00%	100.00%
Capital Preservation [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan asset actual allocation	17.00%
Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan asset actual allocation	26.00%
Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan asset actual allocation	57.00%	58.00%
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Percent of after tax earnings contributed in profit sharing	0.00%
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Percent of after tax earnings contributed in profit sharing	5.00%
American Woodmark Investment Savings Stock Ownership Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, minimum age requirement	18 years
Defined contribution plan, minimum consecutive months employed requirement	6 months