<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2025"
  xmlns:ffd="http://xbrl.sec.gov/ffd/2025"
  xmlns:iso4217="http://www.xbrl.org/2003/iso4217"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef
      xlink:href="https://xbrl.sec.gov/ffd/2025/ffd-2025.xsd"
      xlink:type="simple"/>
    <context id="c0">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001836833</identifier>
        </entity>
        <period>
            <startDate>2026-06-05</startDate>
            <endDate>2026-06-05</endDate>
        </period>
    </context>
    <context id="c1">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001836833</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>1</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-06-05</startDate>
            <endDate>2026-06-05</endDate>
        </period>
    </context>
    <unit id="usd">
        <measure>iso4217:USD</measure>
    </unit>
    <ffd:FormTp contextRef="c0" id="ixv-242">S-3</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="c0" id="ixv-26">PLANET LABS PBC</dei:EntityRegistrantName>
    <ffd:PrevslyPdFlg contextRef="c1" id="ixv-243">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="c1" id="ixv-88">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="c1" id="ixv-92">Common Stock, $0.0001 par value per share</ffd:OfferingSctyTitl>
    <ffd:Rule457rFlg contextRef="c1" id="ixv-244">true</ffd:Rule457rFlg>
    <ffd:TtlOfferingAmt contextRef="c0" decimals="INF" id="ixv-245" unitRef="usd">0</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt contextRef="c0" decimals="0" id="ixv-246" unitRef="usd">0</ffd:TtlFeeAmt>
    <ffd:TtlPrevslyPdAmt contextRef="c0" decimals="0" id="ixv-247" unitRef="usd">0</ffd:TtlPrevslyPdAmt>
    <ffd:TtlOffsetAmt contextRef="c0" decimals="0" id="ixv-248" unitRef="usd">0</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt contextRef="c0" decimals="0" id="ixv-249" unitRef="usd">0</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="c1" id="ixv-209">&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;&lt;span style="font-size: 13px;"&gt;&lt;span style="font-size: 10pt;"&gt;In accordance with Rules 456(b) and 457(r) under the
Securities Act of 1933, as amended (the &#x201c;Securities Act&#x201d;), the registrant is
deferring payment of all registration fees. In connection with the securities
offered hereby, the registrant will pay&#160;&#x201c;pay-as-you-go&#160;registration
fees&#x201d; in accordance with Rule 456(b). The registrant will calculate the
registration fee applicable to an offer of securities pursuant to this
registration statement based on the fee payment rate in effect on the date of such
fee payment.&lt;/span&gt;&lt;/span&gt;&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;&lt;span style="font-size: 13px;"&gt;&lt;span style="font-size: 10pt;"&gt;An indeterminate aggregate initial offering
price or principal amount of the securities of each identified class is being
registered as may from time to time be offered under this registration
statement at indeterminate prices, along with an indeterminate number of
securities that may be issued upon exercise, settlement, exchange or conversion
of securities offered or sold under this registration statement.&lt;span style="mso-spacerun:yes"&gt;&#160; &lt;/span&gt;Separate consideration may or may not be
received for securities that are issuable upon conversion, exercise or exchange
of other securities.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;
     &lt;/div&gt;
    &lt;/td&gt;
   &lt;/tr&gt;
  &lt;/table&gt;</ffd:OfferingNote>
    <ffd:CombinedProspectusTableNa contextRef="c0" id="ixv-252">N/A</ffd:CombinedProspectusTableNa>
    <dei:EntityCentralIndexKey contextRef="c0" id="ixv-253">0001836833</dei:EntityCentralIndexKey>
    <ffd:FeeExhibitTp contextRef="c0" id="ixv-254">EX-FILING FEES</ffd:FeeExhibitTp>
    <ffd:OffsetTableNa contextRef="c0" id="ixv-255">N/A</ffd:OffsetTableNa>
    <ffd:SubmissnTp contextRef="c0" id="ixv-256">S-3ASR</ffd:SubmissnTp>
</xbrl>
