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        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001467623</identifier>
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        <period>
            <startDate>2026-02-20</startDate>
            <endDate>2026-02-20</endDate>
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            <identifier scheme="http://www.sec.gov/CIK">0001467623</identifier>
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        <period>
            <startDate>2026-02-20</startDate>
            <endDate>2026-02-20</endDate>
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    <unit id="shares">
        <measure>shares</measure>
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    <unit id="usd">
        <measure>iso4217:USD</measure>
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    <unit id="number">
        <measure>pure</measure>
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    <dei:EntityCentralIndexKey contextRef="c-1" id="f-19">0001467623</dei:EntityCentralIndexKey>
    <ffd:FeeExhibitTp contextRef="c-1" id="f-20">EX-FILING FEES</ffd:FeeExhibitTp>
    <ffd:OffsetTableNa contextRef="c-1" id="f-21">N/A</ffd:OffsetTableNa>
    <ffd:SubmissnTp contextRef="c-1" id="f-1">S-8</ffd:SubmissnTp>
    <ffd:FormTp contextRef="c-1" id="f-2">S-8</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="c-1" id="f-3">Dropbox, Inc.</dei:EntityRegistrantName>
    <ffd:OfferingSctyTp contextRef="c-2" id="f-4">Equity</ffd:OfferingSctyTp>
    <ffd:PrevslyPdFlg contextRef="c-2" id="f-5">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTitl contextRef="c-2" id="f-6">Class A Common Stock, $0.00001 par value per share</ffd:OfferingSctyTitl>
    <ffd:FeesOthrRuleFlg contextRef="c-2" id="f-7">true</ffd:FeesOthrRuleFlg>
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    <ffd:OfferingNote contextRef="c-2" id="f-16">&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:6.5pt;font-weight:400;line-height:115%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(1) &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:115%"&gt;Pursuant to Rule 416(a) of the Securities Act of 1933 (the &#x201c;Securities Act&#x201d;), as amended, this Registration Statement covers any additional shares of the Registrant&#x2019;s Class A common stock (&#x201c;Class A Common Stock&#x201d;) that become issuable under the Registrant&#x2019;s 2018 Equity Incentive Plan (the &#x201c;2018 Plan&#x201d;) by reason of any stock dividend, stock split, recapitalization or other similar transaction effected without the Registrant&#x2019;s receipt of consideration which results in an increase in the number of the outstanding shares of Class A Common Stock. &lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:6.5pt;font-weight:400;line-height:115%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(2) &lt;/span&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:10pt;font-weight:400;line-height:115%"&gt;Represents an automatic increase of 12,150,187 shares of the Registrant&#x2019;s Class A common stock reserved for issuance under, and which annual increase is provided for, in the 2018 Plan.&lt;/span&gt;&lt;/div&gt;&lt;span style="color:#000000;font-family:'Times New Roman',serif;font-size:6.5pt;font-weight:400;line-height:115%;position:relative;top:-3.5pt;vertical-align:baseline"&gt;(3) &lt;/span&gt;Estimated in accordance with Rule 457(h) of the Securities Act solely for the purpose of calculating the registration fee on the basis of $24.17 per share, the average of the high and low sale prices of the Registrant&#x2019;s Class A common stock as reported on the NASDAQ Global Select Stock Market on February 12, 2026.</ffd:OfferingNote>
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