<?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"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <link:schemaRef
      xlink:href="https://xbrl.sec.gov/ffd/2026/ffd-2026.xsd"
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    <context id="rc">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001651308</identifier>
        </entity>
        <period>
            <startDate>2026-04-27</startDate>
            <endDate>2026-04-27</endDate>
        </period>
    </context>
    <context id="offrl_1">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001651308</identifier>
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                <xbrldi:typedMember dimension="ffd:OfferingAxis">
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        <period>
            <startDate>2026-04-27</startDate>
            <endDate>2026-04-27</endDate>
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    <context id="offrl_2">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001651308</identifier>
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                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>2</dei:lineNo>
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        <period>
            <startDate>2026-04-27</startDate>
            <endDate>2026-04-27</endDate>
        </period>
    </context>
    <context id="offrl_3">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001651308</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>3</dei:lineNo>
                </xbrldi:typedMember>
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        <period>
            <startDate>2026-04-27</startDate>
            <endDate>2026-04-27</endDate>
        </period>
    </context>
    <context id="offrl_4">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001651308</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>4</dei:lineNo>
                </xbrldi:typedMember>
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        <period>
            <startDate>2026-04-27</startDate>
            <endDate>2026-04-27</endDate>
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    <context id="offrl_5">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001651308</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>5</dei:lineNo>
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        <period>
            <startDate>2026-04-27</startDate>
            <endDate>2026-04-27</endDate>
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    <context id="offrl_6">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001651308</identifier>
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                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>6</dei:lineNo>
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        <period>
            <startDate>2026-04-27</startDate>
            <endDate>2026-04-27</endDate>
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    </context>
    <unit id="USD">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="pure">
        <measure>pure</measure>
    </unit>
    <ffd:FormTp contextRef="rc" id="ixv-443">S-3</ffd:FormTp>
    <ffd:SubmissnTp contextRef="rc" id="ixv-444">S-3ASR</ffd:SubmissnTp>
    <ffd:FeeExhibitTp contextRef="rc" id="ixv-445">EX-FILING FEES</ffd:FeeExhibitTp>
    <dei:EntityCentralIndexKey contextRef="rc" id="ixv-446">0001651308</dei:EntityCentralIndexKey>
    <dei:EntityRegistrantName contextRef="rc" id="ixv-447">BeOne Medicines Ltd.</dei:EntityRegistrantName>
    <ffd:OfferingTableNa contextRef="rc" id="hiddenrcOfferingTableNa" xsi:nil="true"/>
    <ffd:OffsetTableNa contextRef="rc" id="hiddenrcOffsetTableNa">N/A</ffd:OffsetTableNa>
    <ffd:CombinedProspectusTableNa contextRef="rc" id="hiddenrcCombinedProspectusTableNa">N/A</ffd:CombinedProspectusTableNa>
    <ffd:FormTp contextRef="rc" id="ixv-520">S-3</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="rc" id="ixv-521">BeOne Medicines Ltd.</dei:EntityRegistrantName>
    <ffd:PrevslyPdFlg contextRef="offrl_1" id="ixv-522">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="offrl_1" id="ixv-523">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_1" id="ixv-524">Ordinary Shares, par value $0.0001 per share</ffd:OfferingSctyTitl>
    <ffd:Rule457rFlg contextRef="offrl_1" id="ixv-525">true</ffd:Rule457rFlg>
    <ffd:FeeRate
      contextRef="offrl_1"
      decimals="7"
      id="ixv-526"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:PrevslyPdFlg contextRef="offrl_2" id="ixv-527">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="offrl_2" id="ixv-528">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_2" id="ixv-529">Preferred Shares, par value $0.0001 per share</ffd:OfferingSctyTitl>
    <ffd:Rule457rFlg contextRef="offrl_2" id="ixv-530">true</ffd:Rule457rFlg>
    <ffd:FeeRate
      contextRef="offrl_2"
      decimals="7"
      id="ixv-531"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:PrevslyPdFlg contextRef="offrl_3" id="ixv-532">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="offrl_3" id="ixv-533">Debt</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_3" id="ixv-534">Senior Debt Securities</ffd:OfferingSctyTitl>
    <ffd:Rule457rFlg contextRef="offrl_3" id="ixv-535">true</ffd:Rule457rFlg>
    <ffd:FeeRate
      contextRef="offrl_3"
      decimals="7"
      id="ixv-536"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:PrevslyPdFlg contextRef="offrl_4" id="ixv-537">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="offrl_4" id="ixv-538">Debt</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_4" id="ixv-539">Subordinated Debt Securities</ffd:OfferingSctyTitl>
    <ffd:Rule457rFlg contextRef="offrl_4" id="ixv-540">true</ffd:Rule457rFlg>
    <ffd:FeeRate
      contextRef="offrl_4"
      decimals="7"
      id="ixv-541"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:PrevslyPdFlg contextRef="offrl_5" id="ixv-542">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="offrl_5" id="ixv-543">Other</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_5" id="ixv-544">Warrants</ffd:OfferingSctyTitl>
    <ffd:Rule457rFlg contextRef="offrl_5" id="ixv-545">true</ffd:Rule457rFlg>
    <ffd:FeeRate
      contextRef="offrl_5"
      decimals="7"
      id="ixv-546"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:PrevslyPdFlg contextRef="offrl_6" id="ixv-547">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="offrl_6" id="ixv-548">Other</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_6" id="ixv-549">Units</ffd:OfferingSctyTitl>
    <ffd:Rule457rFlg contextRef="offrl_6" id="ixv-550">true</ffd:Rule457rFlg>
    <ffd:FeeRate
      contextRef="offrl_6"
      decimals="7"
      id="ixv-551"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:TtlOfferingAmt contextRef="rc" decimals="2" id="ixv-552" unitRef="USD">0.00</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt contextRef="rc" decimals="2" id="ixv-553" unitRef="USD">0.00</ffd:TtlFeeAmt>
    <ffd:TtlPrevslyPdAmt contextRef="rc" decimals="2" id="ixv-554" unitRef="USD">0.00</ffd:TtlPrevslyPdAmt>
    <ffd:TtlOffsetAmt contextRef="rc" decimals="2" id="ixv-555" unitRef="USD">0.00</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt contextRef="rc" decimals="2" id="ixv-556" unitRef="USD">0.00</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="offrl_1" id="ixv-557">(1a) An indeterminate number of or aggregate principal amount of the securities of each identified class is being registered, as may at various times be issued at indeterminate prices. Any securities registered hereunder may be sold separately or together with other securities registered hereunder.

(1b) In accordance with Rules 456(b) and 457(r) under the Securities Act, the registrant is deferring payment of all of the registration fee. Any registration fees will be paid subsequently on a pay-as-you-go basis in accordance with Rule 456(b).

(1c) In addition to any securities that may be registered hereunder, we are also registering an indeterminate number of ordinary shares as may be issued upon conversion or exercise of the securities issued directly hereunder. No separate consideration will be received for any ordinary shares so issued upon conversion or exercise. The ordinary shares may be represented by American Depositary Shares (the "Ordinary ADSs"), each of which represents a specified number of ordinary shares. Ordinary ADSs issuable upon deposit of the ordinary shares registered hereby have been or will be registered under a separate registration statement on Form F-6.
</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_2" id="ixv-558">(2a) An indeterminate number of or aggregate principal amount of the securities of each identified class is being registered, as may at various times be issued at indeterminate prices. Any securities registered hereunder may be sold separately or together with other securities registered hereunder.

(2b) In accordance with Rules 456(b) and 457(r) under the Securities Act, the registrant is deferring payment of all of the registration fee. Any registration fees will be paid subsequently on a pay-as-you-go basis in accordance with Rule 456(b).

(2c) The preferred shares may be represented by preferred American Depositary Shares (the "Preferred ADSs"), each of which represent a specified number of preferred shares. A separate Registration Statement on Form F-6 has been or will be filed for the registration of Preferred ADSs issuable upon deposit of the preferred shares. Preferred ADSs issuable upon deposit of the preferred shares registered hereby will be registered under a separate registration statement on Form F-6.
</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_3" id="ixv-559">(3a) An indeterminate number of or aggregate principal amount of the securities of each identified class is being registered, as may at various times be issued at indeterminate prices. Any securities registered hereunder may be sold separately or together with other securities registered hereunder.

(3b) In accordance with Rules 456(b) and 457(r) under the Securities Act, the registrant is deferring payment of all of the registration fee. Any registration fees will be paid subsequently on a pay-as-you-go basis in accordance with Rule 456(b).
</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_4" id="ixv-560">(4a) An indeterminate number of or aggregate principal amount of the securities of each identified class is being registered, as may at various times be issued at indeterminate prices. Any securities registered hereunder may be sold separately or together with other securities registered hereunder.

(4b) In accordance with Rules 456(b) and 457(r) under the Securities Act, the registrant is deferring payment of all of the registration fee. Any registration fees will be paid subsequently on a pay-as-you-go basis in accordance with Rule 456(b).
</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_5" id="ixv-561">(5a) An indeterminate number of or aggregate principal amount of the securities of each identified class is being registered, as may at various times be issued at indeterminate prices. Any securities registered hereunder may be sold separately or together with other securities registered hereunder.

(5b) In accordance with Rules 456(b) and 457(r) under the Securities Act, the registrant is deferring payment of all of the registration fee. Any registration fees will be paid subsequently on a pay-as-you-go basis in accordance with Rule 456(b).
</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_6" id="ixv-562">(6a) An indeterminate number of or aggregate principal amount of the securities of each identified class is being registered, as may at various times be issued at indeterminate prices. Any securities registered hereunder may be sold separately or together with other securities registered hereunder.

(6b) In accordance with Rules 456(b) and 457(r) under the Securities Act, the registrant is deferring payment of all of the registration fee. Any registration fees will be paid subsequently on a pay-as-you-go basis in accordance with Rule 456(b).
</ffd:OfferingNote>
</xbrl>
