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        <period>
            <startDate>2026-06-01</startDate>
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            <startDate>2026-06-01</startDate>
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            <startDate>2026-06-01</startDate>
            <endDate>2026-06-01</endDate>
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        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001975736</identifier>
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        <period>
            <startDate>2026-06-01</startDate>
            <endDate>2026-06-01</endDate>
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        <measure>iso4217:USD</measure>
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    <unit id="pure">
        <measure>pure</measure>
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    <ffd:FormTp contextRef="rc" id="ixv-196">SC TO</ffd:FormTp>
    <ffd:SubmissnTp contextRef="rc" id="ixv-197">SC TO-I</ffd:SubmissnTp>
    <ffd:FeeExhibitTp contextRef="rc" id="ixv-198">EX-FILING FEES</ffd:FeeExhibitTp>
    <dei:EntityCentralIndexKey contextRef="rc" id="ixv-199">0001975736</dei:EntityCentralIndexKey>
    <dei:EntityRegistrantName contextRef="rc" id="ixv-200">KKR FS Income Trust Select</dei:EntityRegistrantName>
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    <ffd:OffsetPrrFormTp contextRef="ofst_1" id="hiddenofst_1OffsetPrrFormTp">SC TO</ffd:OffsetPrrFormTp>
    <ffd:OffsetClmdInd contextRef="ofst_2" id="ixv-206">false</ffd:OffsetClmdInd>
    <ffd:OffsetPrrFormTp contextRef="ofst_2" id="hiddenofst_2OffsetPrrFormTp">SC TO</ffd:OffsetPrrFormTp>
    <ffd:OffsetClmdInd contextRef="ofst_3" id="ixv-208">false</ffd:OffsetClmdInd>
    <ffd:OffsetPrrFormTp contextRef="ofst_3" id="hiddenofst_3OffsetPrrFormTp">SC TO</ffd:OffsetPrrFormTp>
    <ffd:OffsetClmdInd contextRef="ofst_4" id="ixv-210">false</ffd:OffsetClmdInd>
    <ffd:OffsetPrrFormTp contextRef="ofst_4" id="hiddenofst_4OffsetPrrFormTp">SC TO</ffd:OffsetPrrFormTp>
    <ffd:PrevslyPdFlg contextRef="offrl_1" id="ixv-272">false</ffd:PrevslyPdFlg>
    <ffd:TxValtn
      contextRef="offrl_1"
      decimals="2"
      id="ixv-273"
      unitRef="USD">50876335.86</ffd:TxValtn>
    <ffd:FeeRate
      contextRef="offrl_1"
      decimals="7"
      id="ixv-274"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:FeeAmt
      contextRef="offrl_1"
      decimals="2"
      id="ixv-275"
      unitRef="USD">7026.02</ffd:FeeAmt>
    <ffd:TtlTxValtn contextRef="rc" decimals="2" id="ixv-276" unitRef="USD">50876335.86</ffd:TtlTxValtn>
    <ffd:TtlFeeAmt contextRef="rc" decimals="2" id="ixv-277" unitRef="USD">7026.02</ffd:TtlFeeAmt>
    <ffd:TtlPrevslyPdAmt contextRef="rc" decimals="2" id="ixv-278" unitRef="USD">0.00</ffd:TtlPrevslyPdAmt>
    <ffd:TtlOffsetAmt contextRef="rc" decimals="2" id="ixv-279" unitRef="USD">1845.25</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt contextRef="rc" decimals="2" id="ixv-280" unitRef="USD">5180.77</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="offrl_1" id="ixv-281">Calculated as the aggregate maximum purchase price for Class S common shares of beneficial interest, par value $0.01 per share, of KKR FS Income Trust Select ("Shares"), based upon the net asset value per Share as of April 30, 2026 of $25.06. This amount is based upon the offer to purchase up to 2,030,181 Shares.


Calculated at $138.10 per $1,000,000.00 of the Transaction Valuation in accordance with Rule 0-11 under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), as modified by Fee Rate Advisory No. 1 for Fiscal Year 2026.</ffd:OfferingNote>
    <ffd:Rule011a2OffsetFlg contextRef="ofst_1" id="ixv-282">true</ffd:Rule011a2OffsetFlg>
    <ffd:OffsetPrrFileNb contextRef="ofst_1" id="ixv-283">005-94422</ffd:OffsetPrrFileNb>
    <ffd:OffsetClmInitlFilgDt contextRef="ofst_1" id="ixv-284">2025-06-02</ffd:OffsetClmInitlFilgDt>
    <ffd:OffsetClmdAmt contextRef="ofst_1" decimals="2" id="ixv-285" unitRef="USD">1845.25</ffd:OffsetClmdAmt>
    <ffd:Rule011a2OffsetFlg contextRef="ofst_2" id="ixv-286">true</ffd:Rule011a2OffsetFlg>
    <ffd:OffsetPrrFilerNm contextRef="ofst_2" id="ixv-287">KKR FS Income Trust Select</ffd:OffsetPrrFilerNm>
    <ffd:OffsetPrrFileNb contextRef="ofst_2" id="ixv-288">005-94422</ffd:OffsetPrrFileNb>
    <ffd:OffsetSrcFilgDt contextRef="ofst_2" id="ixv-289">2025-06-02</ffd:OffsetSrcFilgDt>
    <ffd:OffsetPrrFeeAmt contextRef="ofst_2" decimals="2" id="ixv-290" unitRef="USD">793.48</ffd:OffsetPrrFeeAmt>
    <ffd:Rule011a2OffsetFlg contextRef="ofst_3" id="ixv-291">true</ffd:Rule011a2OffsetFlg>
    <ffd:OffsetPrrFilerNm contextRef="ofst_3" id="ixv-292">KKR FS Income Trust Select</ffd:OffsetPrrFilerNm>
    <ffd:OffsetPrrFileNb contextRef="ofst_3" id="ixv-293">005-94422</ffd:OffsetPrrFileNb>
    <ffd:OffsetSrcFilgDt contextRef="ofst_3" id="ixv-294">2025-09-02</ffd:OffsetSrcFilgDt>
    <ffd:OffsetPrrFeeAmt contextRef="ofst_3" decimals="2" id="ixv-295" unitRef="USD">631.92</ffd:OffsetPrrFeeAmt>
    <ffd:Rule011a2OffsetFlg contextRef="ofst_4" id="ixv-296">true</ffd:Rule011a2OffsetFlg>
    <ffd:OffsetPrrFilerNm contextRef="ofst_4" id="ixv-297">KKR FS Income Trust Select</ffd:OffsetPrrFilerNm>
    <ffd:OffsetPrrFileNb contextRef="ofst_4" id="ixv-298">005-94422</ffd:OffsetPrrFileNb>
    <ffd:OffsetSrcFilgDt contextRef="ofst_4" id="ixv-299">2025-12-01</ffd:OffsetSrcFilgDt>
    <ffd:OffsetPrrFeeAmt contextRef="ofst_4" decimals="2" id="ixv-300" unitRef="USD">419.85</ffd:OffsetPrrFeeAmt>
    <ffd:OffsetExpltnForClmdAmt contextRef="ofst_1" id="ixv-301">An aggregate fee of $1,127.85 was paid with the filing of the Schedule TO-I by KKR FS Income Trust Select on June 2, 2025 (the "June 2025 Schedule TO-I"). The final transaction fee due pursuant to the final amendment to the June 2025 Schedule TO-I filed on July 28, 2025 was $36.85, as $240,672.75 of Shares were tendered in connection with the related tender offer. Pursuant to Rule 0-11(a)(2) under the Exchange Act, a portion of the remaining $1,091 of the filing fee paid in connection with the June 2025 Schedule TO-I was used to offset the remaining filing fee due in connection with the filing of the Schedule TO-I by KKR FS Income Trust Select on March 2, 2026 (the "March 2026 Schedule TO-I"). More specifically, $297.52 from the filing fee paid in connection with the June 2025 Schedule TO-I was used to offset the final transaction fee due from the March 2026 Schedule TO-I filing, and the remaining $793.48 from the June 2025 Schedule TO-I remains available to offset future filings. Pursuant to Rule 0-11(a)(2) under the Exchange Act, the remaining $793.48 portion of the filing fee paid in connection with the June 2025 Schedule TO-I is being used to offset a portion of the filing fee in connection with this Schedule TO-I.


An aggregate fee of $1,357.54 was paid with the filing of the Schedule TO-I by KKR FS Income Trust Select on September 2, 2025 (the "September 2025 Schedule TO-I"). The final transaction fee due pursuant to the final amendment to the September 2025 Schedule TO-I filed on October 27, 2025 was $725.62, as $4,739,510.35 of Shares were tendered in connection with the related tender offer. Pursuant to Rule 0-11(a)(2) under the Exchange Act, the remaining $631.92 portion of the filing fee paid in connection with the September 2025 Schedule TO-I is being used to offset a portion of the filing fee in connection with this Schedule TO-I.


An aggregate fee of $1,312.96 was paid with the filing of the Schedule TO-I by KKR FS Income Trust Select on December 1, 2025 (the "December 2025 Schedule TO-I"). The final transaction fee due pursuant to the final amendment to the December 2025 Schedule TO-I filed on January 28, 2026 was $893.11, as $6,467,152.48 of Shares were tendered in connection with the related tender offer. Pursuant to Rule 0-11(a)(2) under the Exchange Act, the remaining $419.85 portion of the filing fee paid in connection with the December 2025 Schedule TO-I is being used to offset a portion of the filing fee in connection with this Schedule TO-I.</ffd:OffsetExpltnForClmdAmt>
</xbrl>
