<?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"
  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/2025/ffd-2025.xsd"
      xlink:type="simple"/>
    <context id="c_offering_1">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002142627</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>1</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-10-22</startDate>
            <endDate>2026-10-22</endDate>
        </period>
    </context>
    <context id="c_offering_2">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002142627</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>2</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-10-22</startDate>
            <endDate>2026-10-22</endDate>
        </period>
    </context>
    <context id="c_offering_3">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002142627</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>3</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-10-22</startDate>
            <endDate>2026-10-22</endDate>
        </period>
    </context>
    <context id="c_offering_4">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002142627</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>4</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-10-22</startDate>
            <endDate>2026-10-22</endDate>
        </period>
    </context>
    <context id="c_offering_5">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002142627</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>5</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-10-22</startDate>
            <endDate>2026-10-22</endDate>
        </period>
    </context>
    <context id="c_report">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002142627</identifier>
        </entity>
        <period>
            <startDate>2026-10-22</startDate>
            <endDate>2026-10-22</endDate>
        </period>
    </context>
    <unit id="USD">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="shares">
        <measure>shares</measure>
    </unit>
    <ffd:SubmissnTp contextRef="c_report" id="fee_001">S-1/A</ffd:SubmissnTp>
    <ffd:FeeExhibitTp contextRef="c_report" id="fee_002">EX-FILING FEES</ffd:FeeExhibitTp>
    <dei:EntityCentralIndexKey contextRef="c_report" id="fee_003">0002142627</dei:EntityCentralIndexKey>
    <ffd:RegnFileNb contextRef="c_report" id="fee_004">333-299203</ffd:RegnFileNb>
    <ffd:OfferingTableNa contextRef="c_report" id="fee_005" xsi:nil="true"/>
    <ffd:OffsetTableNa contextRef="c_report" id="fee_006">N/A</ffd:OffsetTableNa>
    <ffd:CombinedProspectusTableNa contextRef="c_report" id="fee_007">N/A</ffd:CombinedProspectusTableNa>
    <ffd:FormTp contextRef="c_report" id="fee_008">S-1</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="c_report" id="fee_009">BHAV Acquisition Corp II</dei:EntityRegistrantName>
    <ffd:PrevslyPdFlg contextRef="c_offering_1" id="fee_010">true</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="c_offering_1" id="fee_011">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="c_offering_1" id="fee_012">Units, each consisting of one Class A ordinary share, $0.0001 par value per share, and one right to receive one-fourth (1/4) of one Class A ordinary share</ffd:OfferingSctyTitl>
    <ffd:Rule457aFlg contextRef="c_offering_1" id="fee_013">true</ffd:Rule457aFlg>
    <ffd:AmtSctiesRegd
      contextRef="c_offering_1"
      decimals="0"
      id="fee_014"
      unitRef="shares">17250000</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="c_offering_1"
      decimals="INF"
      id="fee_015"
      unitRef="USD">10.00</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="c_offering_1"
      decimals="INF"
      id="fee_016"
      unitRef="USD">172500000.00</ffd:MaxAggtOfferingPric>
    <ffd:FeeAmt
      contextRef="c_offering_1"
      decimals="INF"
      id="fee_017"
      unitRef="USD">23822.25</ffd:FeeAmt>
    <ffd:PrevslyPdFlg contextRef="c_offering_2" id="fee_018">true</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="c_offering_2" id="fee_019">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="c_offering_2" id="fee_020">Class A ordinary shares included as part of the units</ffd:OfferingSctyTitl>
    <ffd:FeesOthrRuleFlg contextRef="c_offering_2" id="fee_021">true</ffd:FeesOthrRuleFlg>
    <ffd:AmtSctiesRegd
      contextRef="c_offering_2"
      decimals="0"
      id="fee_022"
      unitRef="shares">17250000</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="c_offering_2"
      decimals="INF"
      id="fee_023"
      unitRef="USD">0.00</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="c_offering_2"
      decimals="INF"
      id="fee_024"
      unitRef="USD">0.00</ffd:MaxAggtOfferingPric>
    <ffd:FeeAmt
      contextRef="c_offering_2"
      decimals="INF"
      id="fee_025"
      unitRef="USD">0.00</ffd:FeeAmt>
    <ffd:PrevslyPdFlg contextRef="c_offering_3" id="fee_026">true</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="c_offering_3" id="fee_027">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="c_offering_3" id="fee_028">Rights included as part of the units</ffd:OfferingSctyTitl>
    <ffd:FeesOthrRuleFlg contextRef="c_offering_3" id="fee_029">true</ffd:FeesOthrRuleFlg>
    <ffd:AmtSctiesRegd
      contextRef="c_offering_3"
      decimals="0"
      id="fee_030"
      unitRef="shares">17250000</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="c_offering_3"
      decimals="INF"
      id="fee_031"
      unitRef="USD">0.00</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="c_offering_3"
      decimals="INF"
      id="fee_032"
      unitRef="USD">0.00</ffd:MaxAggtOfferingPric>
    <ffd:FeeAmt
      contextRef="c_offering_3"
      decimals="INF"
      id="fee_033"
      unitRef="USD">0.00</ffd:FeeAmt>
    <ffd:PrevslyPdFlg contextRef="c_offering_4" id="fee_034">true</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="c_offering_4" id="fee_035">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="c_offering_4" id="fee_036">Class A ordinary shares underlying the rights included as part of the units</ffd:OfferingSctyTitl>
    <ffd:Rule457aFlg contextRef="c_offering_4" id="fee_037">true</ffd:Rule457aFlg>
    <ffd:AmtSctiesRegd
      contextRef="c_offering_4"
      decimals="0"
      id="fee_038"
      unitRef="shares">4312500</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="c_offering_4"
      decimals="INF"
      id="fee_039"
      unitRef="USD">10.00</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="c_offering_4"
      decimals="INF"
      id="fee_040"
      unitRef="USD">43125000.00</ffd:MaxAggtOfferingPric>
    <ffd:FeeAmt
      contextRef="c_offering_4"
      decimals="INF"
      id="fee_041"
      unitRef="USD">5955.56</ffd:FeeAmt>
    <ffd:PrevslyPdFlg contextRef="c_offering_5" id="fee_042">true</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="c_offering_5" id="fee_043">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="c_offering_5" id="fee_044">Representative Shares (Class A ordinary shares issuable to the representative of the underwriters)</ffd:OfferingSctyTitl>
    <ffd:Rule457aFlg contextRef="c_offering_5" id="fee_045">true</ffd:Rule457aFlg>
    <ffd:AmtSctiesRegd
      contextRef="c_offering_5"
      decimals="0"
      id="fee_046"
      unitRef="shares">517500</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="c_offering_5"
      decimals="INF"
      id="fee_047"
      unitRef="USD">10.00</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="c_offering_5"
      decimals="INF"
      id="fee_048"
      unitRef="USD">5175000.00</ffd:MaxAggtOfferingPric>
    <ffd:FeeAmt
      contextRef="c_offering_5"
      decimals="INF"
      id="fee_049"
      unitRef="USD">714.67</ffd:FeeAmt>
    <ffd:TtlOfferingAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_050"
      unitRef="USD">220800000.00</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_051"
      unitRef="USD">30492.48</ffd:TtlFeeAmt>
    <ffd:TtlPrevslyPdAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_052"
      unitRef="USD">30492.48</ffd:TtlPrevslyPdAmt>
    <ffd:TtlOffsetAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_053"
      unitRef="USD">0.00</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt
      contextRef="c_report"
      decimals="INF"
      id="fee_054"
      unitRef="USD">0.00</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="c_offering_1" id="fee_055">Includes 1,500,000 units issuable upon exercise of the underwriters&#x2019; over-allotment option. Each unit consists of one Class A ordinary share, $0.0001 par value per share, and one right to receive one-fourth (1/4) of one Class A ordinary share upon the consummation of the registrant&#x2019;s initial business combination. Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(a) under the Securities Act of 1933, as amended (the &#x201c;Securities Act&#x201d;). Pursuant to Rule 416(a) under the Securities Act, there are also being registered an indeterminable number of additional securities as may be issued to prevent dilution resulting from share sub-divisions, share capitalizations or similar transactions.&lt;br/&gt;&lt;br/&gt;The registrant previously registered 17,250,000 units (including 2,250,000 units subject to the underwriter&#x2019;s over-allotment option). The registrant has subsequently reduced the number of units being offered to 11,500,000 units (including 1,500,000 units subject to the underwriter&#x2019;s over-allotment option).</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="c_offering_2" id="fee_056">Included as part of the units registered hereby.&lt;br/&gt;&lt;br/&gt;No separate registration fee required pursuant to Rule 457(g) under the Securities Act.</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="c_offering_3" id="fee_057">Included as part of the units registered hereby.&lt;br/&gt;&lt;br/&gt;No separate registration fee required pursuant to Rule 457(g) under the Securities Act.</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="c_offering_4" id="fee_058">Represents the Class A ordinary shares issuable upon conversion of the rights included in the units registered hereby (including the units issuable upon exercise of the underwriters&#x2019; over-allotment option), at the rate of one-fourth (1/4) of one Class A ordinary share per right. No fractional shares will be issued upon conversion of the rights. Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(a) under the Securities Act, based on the initial public offering price of the units.&lt;br/&gt;&lt;br/&gt;The registrant previously registered 4,312,500 Class A ordinary shares underlying the rights included in the units being offered. The registrant has subsequently reduced the number of units being offered to 11,500,000 units (including 1,500,000 units subject to the underwriter&#x2019;s over-allotment option), and, as a result, the number of Class A ordinary shares underlying the rights being offered was reduced to 2,875,000 Class A ordinary shares.</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="c_offering_5" id="fee_059">Represents Class A ordinary shares issuable to Maxim Group LLC (&#x201c;Maxim&#x201d;), the representative of the underwriters, and/or its designees, in connection with the initial public offering for no cash consideration, assuming full exercise of the underwriters&#x2019; over-allotment option. Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(a) under the Securities Act, based on the initial public offering price of the units.&lt;br/&gt;&lt;br/&gt;The registrant has subsequently reduced the number of Class A ordinary shares issuable to Maxim to 402,500 Class A ordinary shares.</ffd:OfferingNote>
</xbrl>
