Label	Element	Value
Transfers To From Parent Corporate Allocations Including Income Taxes	bned_TransfersToFromParentCorporateAllocationsIncludingIncomeTaxes	$ 22,445,000
Transfers To From Parent Corporate Allocations Including Income Taxes	bned_TransfersToFromParentCorporateAllocationsIncludingIncomeTaxes	(28,868,000)
Adjustments to Additional Paid in Capital, Other	us-gaap_AdjustmentsToAdditionalPaidInCapitalOther	$ 0
Treasury Stock, Shares	us-gaap_TreasuryStockShares	0
Parent Company Investment	bned_ParentCompanyInvestment	$ 671,836,000
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures	us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0
Common Stock, Value, Issued	us-gaap_CommonStockValue	0
CostOfRepurchasedSharesForTaxWittholdingForShareBasedCompensation	bned_CostOfRepurchasedSharesForTaxWittholdingForShareBasedCompensation	596,000
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3,864,000
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	953,000
Treasury Stock [Member]
CostOfRepurchasedSharesForTaxWittholdingForShareBasedCompensation	bned_CostOfRepurchasedSharesForTaxWittholdingForShareBasedCompensation	596,000
Common Stock [Member]
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures	us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	$ 1,000
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures	us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures	107,000
Common Stock [Member] | Spinoff [Member]
Stock Issued During Period, Value, New Issues	us-gaap_StockIssuedDuringPeriodValueNewIssues	$ 482,000
Stock Issued During Period, Shares, New Issues	us-gaap_StockIssuedDuringPeriodSharesNewIssues	48,187,000
Additional Paid-in Capital [Member]
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures	us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	$ (1,000)
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3,864,000
Additional Paid-in Capital [Member] | Spinoff [Member]
Adjustments to Additional Paid in Capital, Other	us-gaap_AdjustmentsToAdditionalPaidInCapitalOther	693,799,000
Retained Earnings [Member]
Net Income (Loss) Attributable to Parent	us-gaap_NetIncomeLoss	29,798,000
Parent [Member]
Transfers To From Parent Corporate Allocations Including Income Taxes	bned_TransfersToFromParentCorporateAllocationsIncludingIncomeTaxes	22,445,000
Transfers To From Parent Corporate Allocations Including Income Taxes	bned_TransfersToFromParentCorporateAllocationsIncludingIncomeTaxes	953,000
Adjustments to Additional Paid in Capital, Other	us-gaap_AdjustmentsToAdditionalPaidInCapitalOther	(694,281,000)
Net Income (Loss) Attributable to Parent	us-gaap_NetIncomeLoss	(26,918,000)
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	$ (28,868,000)