<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2026"
  xmlns:ffd="http://xbrl.sec.gov/ffd/2026"
  xmlns:iso4217="http://www.xbrl.org/2003/iso4217"
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  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef
      xlink:href="https://xbrl.sec.gov/ffd/2026/ffd-2026.xsd"
      xlink:type="simple"/>
    <context id="c0">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001130713</identifier>
        </entity>
        <period>
            <startDate>2026-08-05</startDate>
            <endDate>2026-08-05</endDate>
        </period>
    </context>
    <context id="c1">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001130713</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>1</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-08-05</startDate>
            <endDate>2026-08-05</endDate>
        </period>
    </context>
    <unit id="shares">
        <measure>shares</measure>
    </unit>
    <unit id="usdPershares">
        <divide>
            <unitNumerator>
                <measure>iso4217:USD</measure>
            </unitNumerator>
            <unitDenominator>
                <measure>shares</measure>
            </unitDenominator>
        </divide>
    </unit>
    <unit id="usd">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="pure">
        <measure>pure</measure>
    </unit>
    <ffd:SubmissnTp contextRef="c0" id="ixv-155">S-8</ffd:SubmissnTp>
    <ffd:FormTp contextRef="c0" id="ixv-156">S-8</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="c0" id="ixv-24">Bed, Bath &amp; Beyond, Inc.</dei:EntityRegistrantName>
    <ffd:OfferingSctyTp contextRef="c1" id="ixv-157">Equity</ffd:OfferingSctyTp>
    <ffd:PrevslyPdFlg contextRef="c1" id="ixv-158">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTitl contextRef="c1" id="ixv-159">Common Stock, $0.0001 par value per share</ffd:OfferingSctyTitl>
    <ffd:Rule457aFlg contextRef="c1" id="ixv-160">true</ffd:Rule457aFlg>
    <ffd:AmtSctiesRegd
      contextRef="c1"
      decimals="INF"
      id="ixv-161"
      unitRef="shares">4500000</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="c1"
      decimals="INF"
      id="ixv-162"
      unitRef="usdPershares">5.01</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric contextRef="c1" decimals="INF" id="ixv-163" unitRef="usd">22545000</ffd:MaxAggtOfferingPric>
    <ffd:FeeAmt contextRef="c1" decimals="2" id="ixv-164" unitRef="usd">3113.47</ffd:FeeAmt>
    <ffd:TtlOfferingAmt contextRef="c0" decimals="INF" id="ixv-165" unitRef="usd">22545000</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt contextRef="c0" decimals="2" id="ixv-166" unitRef="usd">3113.47</ffd:TtlFeeAmt>
    <ffd:TtlOffsetAmt contextRef="c0" decimals="2" id="ixv-167" unitRef="usd">0</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt contextRef="c0" decimals="2" id="ixv-168" unitRef="usd">3113.47</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="c1" id="ixv-104">&lt;table style="font-size: 12pt; border-spacing: 0px; border-collapse: collapse; width: 100%;"&gt; &lt;tr style="height: 0px; font-size: 0px;"&gt;&lt;td style="width: 1%;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 99%;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="vertical-align: top;"&gt; &lt;td style="padding: 0px 0pt;"&gt; &lt;div style="margin-bottom: 4pt;"&gt; &lt;span style="font-size: 10.0pt;"&gt;(1)&lt;/span&gt; &lt;/div&gt; &lt;/td&gt; &lt;td style="padding: 0px 5.4pt; text-align: left;"&gt; &lt;div style="margin-bottom: 4pt;"&gt; &lt;span style="font-size: 10.0pt;"&gt;In accordance with Rule 416
under the Securities Act of 1933, as amended, this registration statement shall
be deemed to cover any additional shares of the Registrant&#x2019;s common stock
(&#x201c;Common Stock&#x201d;) that may from time to time be offered or issued to prevent
dilution resulting from stock splits, stock dividends or similar transactions.&lt;/span&gt; &lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;table style="font-size: 12pt; border-spacing: 0px; border-collapse: collapse; width: 100%;"&gt;
   &lt;tr style="height: 0px; font-size: 0px;"&gt;&lt;td style="width: 1%;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 99%;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="vertical-align: top;"&gt;
    &lt;td style="padding: 0px 0pt;"&gt;
     &lt;div style="margin-bottom: 4pt;"&gt;
      &lt;span style="font-size: 10.0pt;"&gt;(2)&lt;/span&gt;
     &lt;/div&gt;
    &lt;/td&gt;
    &lt;td style="padding: 0px 5.4pt; text-align: left;"&gt;
     &lt;div style="margin-bottom: 4pt;"&gt;
      &lt;span style="font-size: 10.0pt;"&gt;Consists of 4,500,000
shares of Common Stock that will become available for issuance under the
Registrant&#x2019;s 2026 Employment Inducement Equity Incentive Plan.&lt;/span&gt;
     &lt;/div&gt;
    &lt;/td&gt;
   &lt;/tr&gt;
  &lt;/table&gt;&lt;table style="font-size: 12pt; border-spacing: 0px; border-collapse: collapse; width: 100%;"&gt;
   &lt;tr style="height: 0px; font-size: 0px;"&gt;&lt;td style="width: 1%;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 99%;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="vertical-align: top;"&gt;
    &lt;td style="padding: 0px 0pt;"&gt;
     &lt;div style="margin-bottom: 4pt;"&gt;
      &lt;span style="font-size: 10.0pt;"&gt;(3)&lt;/span&gt;
     &lt;/div&gt;
    &lt;/td&gt;
    &lt;td style="padding: 0px 5.4pt; text-align: left;"&gt;
     &lt;div style="margin-bottom: 4pt;"&gt;
      &lt;span style="font-size: 10.0pt;"&gt;Estimated solely for the
purpose of calculating the registration fee pursuant to Rules 457(c) and 457(h)
of the Securities Act of 1933, as amended, and based upon the average of the
high and low prices of the Common Stock as reported on The New York Stock
Exchange on July 30, 2026.&lt;/span&gt;
     &lt;/div&gt;
    &lt;/td&gt;
   &lt;/tr&gt;
  &lt;/table&gt;</ffd:OfferingNote>
    <ffd:FeeRate
      contextRef="c1"
      decimals="INF"
      id="hidden-fact-0"
      unitRef="pure">0.00013810</ffd:FeeRate>
    <dei:EntityCentralIndexKey contextRef="c0" id="ixv-172">0001130713</dei:EntityCentralIndexKey>
    <ffd:FeeExhibitTp contextRef="c0" id="ixv-173">EX-FILING FEES</ffd:FeeExhibitTp>
    <ffd:OffsetTableNa contextRef="c0" id="ixv-174">N/A</ffd:OffsetTableNa>
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