<?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">
    <link:schemaRef
      xlink:href="https://xbrl.sec.gov/ffd/2025/ffd-2025.xsd"
      xlink:type="simple"/>
    <context id="From2026-09-29to2026-09-29">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002076561</identifier>
        </entity>
        <period>
            <startDate>2026-09-29</startDate>
            <endDate>2026-09-29</endDate>
        </period>
    </context>
    <context id="OfferingAxis_From2026-09-29to2026-09-29_1">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002076561</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>1</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-09-29</startDate>
            <endDate>2026-09-29</endDate>
        </period>
    </context>
    <context id="OfferingAxis_From2026-09-29to2026-09-29_2">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002076561</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>2</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-09-29</startDate>
            <endDate>2026-09-29</endDate>
        </period>
    </context>
    <context id="OfferingAxis_From2026-09-29to2026-09-29_3">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002076561</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>3</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-09-29</startDate>
            <endDate>2026-09-29</endDate>
        </period>
    </context>
    <context id="OfferingAxis_From2026-09-29to2026-09-29_4">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002076561</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>4</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-09-29</startDate>
            <endDate>2026-09-29</endDate>
        </period>
    </context>
    <context id="OfferingAxis_From2026-09-29to2026-09-29_5">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0002076561</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>5</dei:lineNo>
                </xbrldi:typedMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-09-29</startDate>
            <endDate>2026-09-29</endDate>
        </period>
    </context>
    <unit id="USD">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="Pure">
        <measure>pure</measure>
    </unit>
    <ffd:CombinedProspectusTableNa contextRef="From2026-09-29to2026-09-29" id="ixv-757">N/A</ffd:CombinedProspectusTableNa>
    <ffd:OffsetTableNa contextRef="From2026-09-29to2026-09-29" id="ixv-758">N/A</ffd:OffsetTableNa>
    <ffd:FeeExhibitTp contextRef="From2026-09-29to2026-09-29" id="ixv-759">EX-FILING FEES</ffd:FeeExhibitTp>
    <ffd:SubmissnTp contextRef="From2026-09-29to2026-09-29" id="ixv-760">S-1/A</ffd:SubmissnTp>
    <dei:EntityCentralIndexKey contextRef="From2026-09-29to2026-09-29" id="ixv-761">0002076561</dei:EntityCentralIndexKey>
    <ffd:FormTp contextRef="From2026-09-29to2026-09-29" id="fid_f5ffa859">S-1</ffd:FormTp>
    <ffd:RegnFileNb contextRef="From2026-09-29to2026-09-29" id="fid_f5af6541">333-292289</ffd:RegnFileNb>
    <dei:EntityRegistrantName contextRef="From2026-09-29to2026-09-29" id="ixv-824">Pine Tree Acquisition Corp.</dei:EntityRegistrantName>
    <ffd:PrevslyPdFlg
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_1"
      id="fid_7e78f125">true</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_1"
      id="fid_182c683b">Other</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_1"
      id="fid_5f444adb">Units, each consisting of one Ordinary Share, $0.0001 par value, and one right to receive one-tenth of one Ordinary Share(2)</ffd:OfferingSctyTitl>
    <ffd:FeesOthrRuleFlg
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_1"
      id="fid_55852713">true</ffd:FeesOthrRuleFlg>
    <ffd:AmtSctiesRegd
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_1"
      decimals="INF"
      id="fid_47c2e3e9"
      unitRef="Pure">11500000</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_1"
      decimals="INF"
      id="fid_b2e2375c"
      unitRef="Pure">10</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_1"
      decimals="INF"
      id="fid_cf9cdffb"
      unitRef="USD">115000000</ffd:MaxAggtOfferingPric>
    <ffd:FeeAmt
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_1"
      decimals="INF"
      id="fid_264325c5"
      unitRef="USD">15881.5</ffd:FeeAmt>
    <ffd:PrevslyPdFlg
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_2"
      id="fid_65e61bc6">true</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_2"
      id="fid_0a400887">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_2"
      id="fid_733b9360-7d8f-4c8a-aec4-d611cf829282">Ordinary Shares underlying the Rights included as part of the Units (2)</ffd:OfferingSctyTitl>
    <ffd:FeesOthrRuleFlg
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_2"
      id="fid_64fef101">true</ffd:FeesOthrRuleFlg>
    <ffd:AmtSctiesRegd
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_2"
      decimals="INF"
      id="fid_c739459b"
      unitRef="Pure">1150000</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_2"
      decimals="INF"
      id="fid_7d081142"
      unitRef="Pure">10</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_2"
      decimals="INF"
      id="fid_dedd5340"
      unitRef="USD">11500000</ffd:MaxAggtOfferingPric>
    <ffd:FeeAmt
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_2"
      decimals="INF"
      id="fid_19eccb66"
      unitRef="USD">1588.15</ffd:FeeAmt>
    <ffd:PrevslyPdFlg
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_3"
      id="fid_24c8fc94">true</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_3"
      id="fid_7d4bd08e">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_3"
      id="fid_03700a03">Ordinary Shares</ffd:OfferingSctyTitl>
    <ffd:FeesOthrRuleFlg
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_3"
      id="fid_c8bdafbb">true</ffd:FeesOthrRuleFlg>
    <ffd:AmtSctiesRegd
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_3"
      decimals="INF"
      id="fid_16dcbbe0"
      unitRef="Pure">460000</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_3"
      decimals="INF"
      id="fid_b7b69c49"
      unitRef="Pure">10</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_3"
      decimals="INF"
      id="fid_52af118b"
      unitRef="USD">4600000</ffd:MaxAggtOfferingPric>
    <ffd:FeeAmt
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_3"
      decimals="INF"
      id="fid_a39d4f78"
      unitRef="USD">635.26</ffd:FeeAmt>
    <ffd:PrevslyPdFlg
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_4"
      id="fid_b01728c8">true</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_4"
      id="fid_389bbad4">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_4"
      id="fid_203915be-7a48-4b25-b0ee-022be63cbb73">Ordinary Shares underlying the Rights included as part of the Units (5)</ffd:OfferingSctyTitl>
    <ffd:FeesOthrRuleFlg
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_4"
      id="fid_ac3160a7">true</ffd:FeesOthrRuleFlg>
    <ffd:AmtSctiesRegd
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_4"
      decimals="INF"
      id="fid_296a6378"
      unitRef="Pure">2683333</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_4"
      decimals="INF"
      id="fid_ce30ee39"
      unitRef="Pure">10</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_4"
      decimals="INF"
      id="fid_d143fb31"
      unitRef="USD">26833330</ffd:MaxAggtOfferingPric>
    <ffd:FeeAmt
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_4"
      decimals="INF"
      id="fid_f4f30900"
      unitRef="USD">3705.68</ffd:FeeAmt>
    <ffd:PrevslyPdFlg
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_5"
      id="fid_37147d01">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_5"
      id="fid_421245f2">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_5"
      id="fid_c8dbf90d-8da6-4344-8c50-6eb733f98744">Ordinary Shares underlying the Rights included as part of the Units (6)</ffd:OfferingSctyTitl>
    <ffd:FeesOthrRuleFlg
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_5"
      id="fid_59924619">true</ffd:FeesOthrRuleFlg>
    <ffd:AmtSctiesRegd
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_5"
      decimals="INF"
      id="fid_aefe9ef4"
      unitRef="Pure">4791667</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_5"
      decimals="INF"
      id="fid_cdf244dd"
      unitRef="Pure">10</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_5"
      decimals="INF"
      id="fid_536f6be9"
      unitRef="USD">47916670</ffd:MaxAggtOfferingPric>
    <ffd:FeeAmt
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_5"
      decimals="INF"
      id="fid_856fc2a5"
      unitRef="USD">6617.29</ffd:FeeAmt>
    <ffd:TtlOfferingAmt
      contextRef="From2026-09-29to2026-09-29"
      decimals="INF"
      id="fid_4b8d9d58"
      unitRef="USD">205850000</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt
      contextRef="From2026-09-29to2026-09-29"
      decimals="INF"
      id="fid_fbcdf4da"
      unitRef="USD">28427.88</ffd:TtlFeeAmt>
    <ffd:TtlPrevslyPdAmt
      contextRef="From2026-09-29to2026-09-29"
      decimals="INF"
      id="fid_c5a19519"
      unitRef="USD">21810.59</ffd:TtlPrevslyPdAmt>
    <ffd:NetFeeAmt
      contextRef="From2026-09-29to2026-09-29"
      decimals="INF"
      id="fid_9758d39a"
      unitRef="USD">6617.29</ffd:NetFeeAmt>
    <ffd:OfferingNote
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_1"
      id="fid_d014a64d">&lt;table cellpadding="0" style="border-spacing:0;font-size:10pt;width:100%"&gt;&lt;tbody&gt;&lt;tr style="height:15px"&gt;&lt;td style="width:4%;vertical-align:top;"&gt;&lt;p style="font-size:10pt;font-family:times new roman;margin:0px 0px 0px 0in"&gt;(1)&lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top;"&gt;&lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px 0px 0px 0in; text-align:justify;"&gt;Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(o) under the Securities Act of 1933, as amended (the &#x201c;Securities Act&#x201d;).&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/tbody&gt;&lt;/table&gt;</ffd:OfferingNote>
    <ffd:OfferingNote
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_2"
      id="fid_b4b76d2e-5e41-4971-b349-65e7a91f57ef">&lt;table cellpadding="0" style="border-spacing:0;font-size:10pt;width:100%"&gt;&lt;tbody&gt;&lt;tr style="height:15px"&gt;&lt;td style="width:4%;vertical-align:top;"&gt;&lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px 0px 0px 0in; text-align:justify;"&gt;(2)&lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top;"&gt;&lt;p style="font-size:10pt;font-family:times new roman;margin:0px"&gt;Represents 11,500,000 units, including 10,000,000 units to be issued in the offering and up to 1,500,000 units which may be issued upon exercise of a 45-day option granted to the underwriters to cover over-allotments, if any, originally each consisting of one Ordinary Share and one right entitling the holder to receive one-tenth of one Ordinary Share.&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/tbody&gt;&lt;/table&gt;</ffd:OfferingNote>
    <ffd:OfferingNote
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_3"
      id="fid_695ba086">&lt;table cellpadding="0" style="border-spacing:0;font-size:10pt;width:100%"&gt;&lt;tbody&gt;&lt;tr style="height:15px"&gt;&lt;td style="width:4%;vertical-align:top;"&gt;&lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px 0px 0px 0in; text-align:justify;"&gt;(3)&lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top;"&gt;&lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px 0px 0px 0in; text-align:justify;"&gt;Pursuant to Rule 416, there are also being registered an indeterminable number of additional securities as may be issued to prevent dilution resulting from stock splits, stock dividends or similar transactions.&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/tbody&gt;&lt;/table&gt;</ffd:OfferingNote>
    <ffd:OfferingNote
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_4"
      id="fid_ef636628">&lt;table cellpadding="0" style="border-spacing:0;font-size:10pt;width:100%"&gt;&lt;tbody&gt;&lt;tr style="height:15px"&gt;&lt;td style="width:4%;vertical-align:top;"&gt;&lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px 0px 0px 0in; text-align:justify;"&gt;(4)&lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top;"&gt;&lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px 0px 0px 0in; text-align:justify;"&gt;No fee pursuant to Rule 457(g).&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/tbody&gt;&lt;/table&gt;</ffd:OfferingNote>
    <ffd:OfferingNote
      contextRef="OfferingAxis_From2026-09-29to2026-09-29_5"
      id="fid_0e729804-1916-4e95-b33c-0a0ff263777d">&lt;table cellpadding="0" style="border-spacing:0;font-size:10pt;width:100%"&gt;&lt;tbody&gt;&lt;tr style="height:15px"&gt;&lt;td style="width:4%;vertical-align:top;"&gt;&lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;"&gt;(5)&lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top;"&gt;&lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;"&gt;Represents Ordinary Shares previously registered due to a prior change in unit structure to include a right entitling the holder to receive one-third of one Ordinary Share.&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="height:15px"&gt;&lt;td style="width:4%;"&gt;&lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;"&gt;&#160;&lt;/p&gt;&lt;/td&gt;&lt;td&gt;&lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;"&gt;&#160;&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr style="height:15px"&gt;&lt;td style="width:4%;vertical-align:top;"&gt;&lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;"&gt;(6)&lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top;"&gt;&lt;p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;"&gt;Represents additional Ordinary Shares being registered due to a change in unit structure to include a right entitling the holder to receive three-fourths of one Ordinary Share.&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/tbody&gt;&lt;/table&gt;</ffd:OfferingNote>
</xbrl>
