<?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"
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  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/2025/ffd-2025.xsd"
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        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001970622</identifier>
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        <period>
            <startDate>2026-08-31</startDate>
            <endDate>2026-08-31</endDate>
        </period>
    </context>
    <context id="c_offering_2">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001970622</identifier>
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                <xbrldi:typedMember dimension="ffd:OfferingAxis">
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        <period>
            <startDate>2026-08-31</startDate>
            <endDate>2026-08-31</endDate>
        </period>
    </context>
    <context id="c_offering_3">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001970622</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>3</dei:lineNo>
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        <period>
            <startDate>2026-08-31</startDate>
            <endDate>2026-08-31</endDate>
        </period>
    </context>
    <context id="c_offering_4">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001970622</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>4</dei:lineNo>
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        <period>
            <startDate>2026-08-31</startDate>
            <endDate>2026-08-31</endDate>
        </period>
    </context>
    <context id="c_offering_5">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001970622</identifier>
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                <xbrldi:typedMember dimension="ffd:OfferingAxis">
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        <period>
            <startDate>2026-08-31</startDate>
            <endDate>2026-08-31</endDate>
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        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001970622</identifier>
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                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>6</dei:lineNo>
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        <period>
            <startDate>2026-08-31</startDate>
            <endDate>2026-08-31</endDate>
        </period>
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    <context id="c_offering_7">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001970622</identifier>
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                <xbrldi:typedMember dimension="ffd:OfferingAxis">
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        <period>
            <startDate>2026-08-31</startDate>
            <endDate>2026-08-31</endDate>
        </period>
    </context>
    <context id="c_report">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001970622</identifier>
        </entity>
        <period>
            <startDate>2026-08-31</startDate>
            <endDate>2026-08-31</endDate>
        </period>
    </context>
    <unit id="USD">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="pure">
        <measure>pure</measure>
    </unit>
    <ffd:SubmissnTp contextRef="c_report" id="fee_001">S-3</ffd:SubmissnTp>
    <ffd:FeeExhibitTp contextRef="c_report" id="fee_002">EX-FILING FEES</ffd:FeeExhibitTp>
    <dei:EntityCentralIndexKey contextRef="c_report" id="fee_003">0001970622</dei:EntityCentralIndexKey>
    <ffd:OfferingTableNa contextRef="c_report" id="fee_004" xsi:nil="true"/>
    <ffd:OffsetTableNa contextRef="c_report" id="fee_005">N/A</ffd:OffsetTableNa>
    <ffd:CombinedProspectusTableNa contextRef="c_report" id="fee_006">N/A</ffd:CombinedProspectusTableNa>
    <ffd:FormTp contextRef="c_report" id="fee_007">S-3</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="c_report" id="fee_008">USA Rare Earth, Inc.</dei:EntityRegistrantName>
    <ffd:PrevslyPdFlg contextRef="c_offering_1" id="fee_009">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="c_offering_1" id="fee_010">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="c_offering_1" id="fee_011">Common Stock, par value $0.0001 per share</ffd:OfferingSctyTitl>
    <ffd:Rule457oFlg contextRef="c_offering_1" id="fee_012">true</ffd:Rule457oFlg>
    <ffd:FeeRate
      contextRef="c_offering_1"
      decimals="INF"
      id="fee_013"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:PrevslyPdFlg contextRef="c_offering_2" id="fee_014">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="c_offering_2" id="fee_015">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="c_offering_2" id="fee_016">Preferred Stock, par value $0.0001 per share</ffd:OfferingSctyTitl>
    <ffd:Rule457oFlg contextRef="c_offering_2" id="fee_017">true</ffd:Rule457oFlg>
    <ffd:FeeRate
      contextRef="c_offering_2"
      decimals="INF"
      id="fee_018"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:PrevslyPdFlg contextRef="c_offering_3" id="fee_019">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="c_offering_3" id="fee_020">Debt</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="c_offering_3" id="fee_021">Debt Securities</ffd:OfferingSctyTitl>
    <ffd:Rule457oFlg contextRef="c_offering_3" id="fee_022">true</ffd:Rule457oFlg>
    <ffd:FeeRate
      contextRef="c_offering_3"
      decimals="INF"
      id="fee_023"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:PrevslyPdFlg contextRef="c_offering_4" id="fee_024">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="c_offering_4" id="fee_025">Other</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="c_offering_4" id="fee_026">Warrants</ffd:OfferingSctyTitl>
    <ffd:Rule457oFlg contextRef="c_offering_4" id="fee_027">true</ffd:Rule457oFlg>
    <ffd:FeeRate
      contextRef="c_offering_4"
      decimals="INF"
      id="fee_028"
      unitRef="pure">0.0001381</ffd:FeeRate>
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    <ffd:OfferingSctyTp contextRef="c_offering_5" id="fee_030">Other</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="c_offering_5" id="fee_031">Rights</ffd:OfferingSctyTitl>
    <ffd:Rule457oFlg contextRef="c_offering_5" id="fee_032">true</ffd:Rule457oFlg>
    <ffd:FeeRate
      contextRef="c_offering_5"
      decimals="INF"
      id="fee_033"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:PrevslyPdFlg contextRef="c_offering_6" id="fee_034">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="c_offering_6" id="fee_035">Other</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="c_offering_6" id="fee_036">Units</ffd:OfferingSctyTitl>
    <ffd:Rule457oFlg contextRef="c_offering_6" id="fee_037">true</ffd:Rule457oFlg>
    <ffd:FeeRate
      contextRef="c_offering_6"
      decimals="INF"
      id="fee_038"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:PrevslyPdFlg contextRef="c_offering_7" id="fee_039">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="c_offering_7" id="fee_040">Unallocated (Universal) Shelf</ffd:OfferingSctyTp>
    <ffd:Rule457oFlg contextRef="c_offering_7" id="fee_041">true</ffd:Rule457oFlg>
    <ffd:MaxAggtOfferingPric
      contextRef="c_offering_7"
      decimals="INF"
      id="fee_042"
      unitRef="USD">1250000000.00</ffd:MaxAggtOfferingPric>
    <ffd:FeeRate
      contextRef="c_offering_7"
      decimals="INF"
      id="fee_043"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:FeeAmt
      contextRef="c_offering_7"
      decimals="INF"
      id="fee_044"
      unitRef="USD">172625.00</ffd:FeeAmt>
    <ffd:TtlOfferingAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_045"
      unitRef="USD">1250000000.00</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_046"
      unitRef="USD">172625.00</ffd:TtlFeeAmt>
    <ffd:NetFeeAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_047"
      unitRef="USD">172625.00</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="c_offering_7" id="fee_048">The securities registered hereunder consists of up to $1,250,000,000 of an indeterminate amount of common stock, preferred stock, debt securities, warrants, rights and/or units. The securities registered also include such unspecified amounts and numbers of shares of common stock, preferred stock, debt securities, warrants, rights and/or units as may be issued upon conversion of or exchange for preferred stock, debt securities, warrants, rights or units that provide for conversion or exchange. Any securities registered hereunder may be sold separately or together with other securities registered hereunder.&lt;br/&gt;&lt;br/&gt;The proposed maximum per security and aggregate offering prices per class of securities will be determined from time to time by the registrant in connection with the issuance by the registrant of the securities registered hereunder and is not specified as to each class of security pursuant to Rule 457(o) under the Securities Act of 1933, as amended (the &#x201c;Securities Act&#x201d;). Separate consideration may or may not be received for securities that are issuable on exercise, conversion or exchange of other securities, or that are issued in units.&lt;br/&gt;&lt;br/&gt;Pursuant to Rule 416 under the Securities Act, this registration statement also covers any additional securities that may be offered or issued in connection with any stock split or stock dividend or pursuant to anti-dilution provisions of any of the securities.</ffd:OfferingNote>
</xbrl>
