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            <startDate>2025-09-22</startDate>
            <endDate>2025-09-22</endDate>
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    <unit id="USD">
        <measure>iso4217:USD</measure>
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    <unit id="pure">
        <measure>pure</measure>
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    <unit id="Shares">
        <measure>shares</measure>
    </unit>
    <ffd:FormTp contextRef="rc" id="ixv-443">S-3</ffd:FormTp>
    <ffd:SubmissnTp contextRef="rc" id="ixv-444">POSASR</ffd:SubmissnTp>
    <ffd:FeeExhibitTp contextRef="rc" id="ixv-445">EX-FILING FEES</ffd:FeeExhibitTp>
    <ffd:RegnFileNb contextRef="rc" id="ixv-446">333-270557</ffd:RegnFileNb>
    <dei:EntityCentralIndexKey contextRef="rc" id="ixv-447">0000877860</dei:EntityCentralIndexKey>
    <dei:EntityRegistrantName contextRef="rc" id="ixv-448">NATIONAL HEALTH INVESTORS INC</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-521">S-3</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="rc" id="ixv-522">NATIONAL HEALTH INVESTORS INC</dei:EntityRegistrantName>
    <ffd:PrevslyPdFlg contextRef="offrl_1" id="ixv-523">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="offrl_1" id="ixv-524">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_1" id="ixv-525">Common Stock, $0.01 par value per share</ffd:OfferingSctyTitl>
    <ffd:Rule457rFlg contextRef="offrl_1" id="ixv-526">true</ffd:Rule457rFlg>
    <ffd:FeeRate
      contextRef="offrl_1"
      decimals="INF"
      id="ixv-527"
      unitRef="pure">0.0001531</ffd:FeeRate>
    <ffd:PrevslyPdFlg contextRef="offrl_2" id="ixv-528">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="offrl_2" id="ixv-529">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_2" id="ixv-530">Preferred Stock, $0.01 par value per share</ffd:OfferingSctyTitl>
    <ffd:Rule457rFlg contextRef="offrl_2" id="ixv-531">true</ffd:Rule457rFlg>
    <ffd:FeeRate
      contextRef="offrl_2"
      decimals="INF"
      id="ixv-532"
      unitRef="pure">0.0001531</ffd:FeeRate>
    <ffd:PrevslyPdFlg contextRef="offrl_3" id="ixv-533">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="offrl_3" id="ixv-534">Debt</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_3" id="ixv-535">Debt Securities</ffd:OfferingSctyTitl>
    <ffd:Rule457rFlg contextRef="offrl_3" id="ixv-536">true</ffd:Rule457rFlg>
    <ffd:FeeRate
      contextRef="offrl_3"
      decimals="INF"
      id="ixv-537"
      unitRef="pure">0.0001531</ffd:FeeRate>
    <ffd:PrevslyPdFlg contextRef="offrl_4" id="ixv-538">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="offrl_4" id="ixv-539">Other</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_4" id="ixv-540">Guarantees of Debt Securities</ffd:OfferingSctyTitl>
    <ffd:Rule457rFlg contextRef="offrl_4" id="ixv-541">true</ffd:Rule457rFlg>
    <ffd:FeeRate
      contextRef="offrl_4"
      decimals="INF"
      id="ixv-542"
      unitRef="pure">0.0001531</ffd:FeeRate>
    <ffd:PrevslyPdFlg contextRef="offrl_5" id="ixv-543">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="offrl_5" id="ixv-544">Other</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_5" id="ixv-545">Warrants</ffd:OfferingSctyTitl>
    <ffd:Rule457rFlg contextRef="offrl_5" id="ixv-546">true</ffd:Rule457rFlg>
    <ffd:FeeRate
      contextRef="offrl_5"
      decimals="INF"
      id="ixv-547"
      unitRef="pure">0.0001531</ffd:FeeRate>
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    <ffd:OfferingSctyTp contextRef="offrl_6" id="ixv-549">Other</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_6" id="ixv-550">Units</ffd:OfferingSctyTitl>
    <ffd:Rule457rFlg contextRef="offrl_6" id="ixv-551">true</ffd:Rule457rFlg>
    <ffd:FeeRate
      contextRef="offrl_6"
      decimals="INF"
      id="ixv-552"
      unitRef="pure">0.0001531</ffd:FeeRate>
    <ffd:TtlOfferingAmt contextRef="rc" decimals="INF" id="ixv-553" unitRef="USD">0.00</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt contextRef="rc" decimals="INF" id="ixv-554" unitRef="USD">0.00</ffd:TtlFeeAmt>
    <ffd:TtlPrevslyPdAmt contextRef="rc" decimals="INF" id="ixv-555" unitRef="USD">0.00</ffd:TtlPrevslyPdAmt>
    <ffd:TtlOffsetAmt contextRef="rc" decimals="INF" id="ixv-556" unitRef="USD">0.00</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt contextRef="rc" decimals="INF" id="ixv-557" unitRef="USD">0.00</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="offrl_1" id="ixv-558">In accordance with Rule 456(b) and Rule 457(r) under the Securities Act of 1933, as amended, the registrant is deferring payment of all of the registration fee. Registration fees will be paid subsequently on a on a "pay as you go" basis. The amount to be registered consists of an indeterminate amount of the securities of each identified class as may from time to time be offered at indeterminate prices. This registration statement also covers an indeterminate amount of the identified classes of securities as may be issued upon conversion of, or in exchange for, or upon exercise of, or pursuant to, convertible or exchangeable securities that provide for exercise or conversion into or purchase of such securities of the registrant. Separate consideration may or may not be received for securities that are issuable on exercise, conversion or exchange of other securities. No separate consideration will be received for guarantees of debt securities registered hereunder. </ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_2" id="ixv-559">See footnote 1. </ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_3" id="ixv-560">See footnote 1. </ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_4" id="ixv-561">See footnote 1. Certain subsidiaries of National Health Investors, Inc. may fully and unconditionally guarantee the payment of principal of, and premium (if any)and interest on, the debt securities of National Health Investors, Inc. No separate consideration will be received for the guarantees of debt securities being registered. Pursuant to Rule 457(n) under the Securities Act, no additional filing fee is required to paid in respect of the guarantees. The guarantees will not be traded separately.</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_5" id="ixv-562">See footnote 1.</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_6" id="ixv-563">See footnote 1.</ffd:OfferingNote>
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