Stock-Based Compensation Stock-Based Compensation (Policies)	12 Months Ended
Apr. 27, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]	We have reserved 10,409,345 shares of our common stock for future grants in accordance with the Barnes & Noble Education Inc. Equity Incentive Plan. Types of equity awards that can be granted under the Equity Incentive Plan include options, restricted stock (“RS”), restricted stock units (“RSU”), performance shares (“PS”) and performance share units (“PSU”). We have not granted options under the Equity Incentive Plan. A RS award is an award of common stock that is subject to certain restrictions during a specified period. Restricted stock awards are generally subject to forfeiture if employment terminates prior to the release of the restrictions. The grantee cannot transfer the shares before the restricted shares vest. Shares of unvested restricted stock have the same voting rights as common stock, are entitled to receive dividends and other distributions thereon (although payment may be deferred until the shares have vested) and are considered to be currently issued and outstanding. Restricted stock awards will have a minimum vesting period of one year. A RSU is a grant valued in terms of our common stock, but no stock is issued at the time of grant. Each restricted stock unit may be redeemed for one share of our common stock once vested. Restricted stock units are generally subject to forfeiture if employment terminates prior to the release of the restrictions. The grantee cannot transfer the units except in very limited circumstances and with the consent of the compensation committee. Shares associated with unvested restricted stock units have no voting rights but are entitled to receive dividends and other distributions thereon (although payment may be deferred until the units have vested). Restricted stock units generally vest over a period of three years, but will have a minimum vesting period of one year. PS awards and PSU awards were granted to employees. Each PS and PSU may be redeemed for one share of our common stock once vested and are generally subject to forfeiture if employment terminates prior to the release of the restrictions. The grantee cannot transfer the PS or PSU awards except in very limited circumstances and with the consent of the compensation committee. Shares of unvested PSU awards have no voting rights but are entitled to receive dividends and other distributions thereon (although payment may be deferred until the shares or units, as the case may be, have vested). The PS and PSU awards will only vest based upon the achievement of pre-established performance goals related to Adjusted EBITDA, segment revenue, new business, and/or total shareholder return performance achieved over a period of time. The PS and PSU awards will vest based on company performance and/or market conditions during the subsequent two year period with one additional year of time-based vesting. The number of PS and PSU awards that will vest range from 0%-150% of the target award based on actual performance. We recognize compensation expense for awards ratably over the requisite service period of the award, which is generally three years. We recognize compensation expense based on the number of awards expected to vest using an estimated average forfeiture rate. We calculate the fair value of stock-based awards based on the closing price on the date the award was granted. For those awards with market conditions, we have determined the grant date fair value using the Monte Carlo simulation model.

We have reserved 10,409,345 shares of our common stock for future grants in accordance with the Barnes & Noble Education Inc. Equity Incentive Plan. Types of equity awards that can be granted under the Equity Incentive Plan include options, restricted stock (“RS”), restricted stock units (“RSU”), performance shares (“PS”) and performance share units (“PSU”). We have not granted options under the Equity Incentive Plan.

A RS award is an award of common stock that is subject to certain restrictions during a specified period. Restricted stock awards are generally subject to forfeiture if employment terminates prior to the release of the restrictions. The grantee cannot transfer the shares before the restricted shares vest. Shares of unvested restricted stock have the same voting rights as common stock, are entitled to receive dividends and other distributions thereon (although payment may be deferred until the shares have vested) and are considered to be currently issued and outstanding. Restricted stock awards will have a minimum vesting period of one year.

A RSU is a grant valued in terms of our common stock, but no stock is issued at the time of grant. Each restricted stock unit may be redeemed for one share of our common stock once vested. Restricted stock units are generally subject to forfeiture if employment terminates prior to the release of the restrictions. The grantee cannot transfer the units except in very limited circumstances and with the consent of the compensation committee. Shares associated with unvested restricted stock units have no voting rights but are entitled to receive dividends and other distributions thereon (although payment may be deferred until the units have vested). Restricted stock units generally vest over a period of three years, but will have a minimum vesting period of one year.

PS awards and PSU awards were granted to employees. Each PS and PSU may be redeemed for one share of our common stock once vested and are generally subject to forfeiture if employment terminates prior to the release of the restrictions. The grantee cannot transfer the PS or PSU awards except in very limited circumstances and with the consent of the compensation committee. Shares of unvested PSU awards have no voting rights but are entitled to receive dividends and other distributions thereon (although payment may be deferred until the shares or units, as the case may be, have vested). The PS and PSU awards will only vest based upon the achievement of pre-established performance goals related to Adjusted EBITDA, segment revenue, new business, and/or total shareholder return performance achieved over a period of time. The PS and PSU awards will vest based on company performance and/or market conditions during the subsequent two year period with one additional year of time-based vesting. The number of PS and PSU awards that will vest range from 0%-150% of the target award based on actual performance.

We recognize compensation expense for awards ratably over the requisite service period of the award, which is generally three years. We recognize compensation expense based on the number of awards expected to vest using an estimated average forfeiture rate. We calculate the fair value of stock-based awards based on the closing price on the date the award was granted. For those awards with market conditions, we have determined the grant date fair value using the Monte Carlo simulation model.