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Stockholders' Equity - Share Based Payment Award Performance Shares Valuation Assumptions (Detail) - PSUs

12 Months Ended

Apr. 30, 2018

CorrelationCoefficient

$ / shares

Apr. 30, 2017

CorrelationCoefficient

$ / shares

Apr. 30, 2016

CorrelationCoefficient

$ / shares

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Correlation coefficient | CorrelationCoefficient

^[1]

0.19

0.22

0.32

Risk-free interest rate

^[2]

2.61%

1.44%

0.93%

Dividend yield

^[3]

0.00%

0.00%

0.00%

American Outdoor Brands Corporation

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Grant date fair market value

$ 11.11

$ 21.89

$ 21.93

Volatility

^[4]

42.27%

41.67%

39.93%

Russell 2000 Index

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Grant date fair market value

$ 1,557.89

$ 1,417.13

$ 1,140.40

Volatility

^[4]

16.26%

16.77%

16.75%

[1]	The correlation coefficient utilizes the same historical price data used to develop the volatility assumptions.
[2]	The risk-free interest rate is based on the yield of a zero-coupon U.S. Treasury bill, commensurate with the three-year performance period.
[3]	We do not expect to pay dividends in the foreseeable future.
[4]	Expected volatility is calculated over the most recent period that represents the remaining term of the performance period as of the valuation date, or three years.

X

- Definition

Share based compensation arrangement by share based payment award fair value assumptions correlation coefficient.

+ References

No definition available.

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X

- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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X

- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(ii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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X

- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iv)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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