    <SEC-DOCUMENT>0001193125-25-225797-index.html : 20251001
    <SEC-HEADER>0001193125-25-225797.hdr.sgml : 20251001
    <ACCEPTANCE-DATETIME>20251001063100
    ACCESSION NUMBER:		0001193125-25-225797
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		27
    CONFORMED PERIOD OF REPORT:	20251001
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Other Events
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20251001
    DATE AS OF CHANGE:		20251001

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			PROSPERITY BANCSHARES INC
    		CENTRAL INDEX KEY:			0001068851
    		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
    		ORGANIZATION NAME:           	02 Finance
    		EIN:				742331986
    		STATE OF INCORPORATION:			TX
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-35388
    		FILM NUMBER:		251362509

    	BUSINESS ADDRESS:
    		STREET 1:		4295 SAN FELIPE
    		STREET 2:		N/A
    		CITY:			HOUSTON
    		STATE:			TX
    		ZIP:			77027
    		BUSINESS PHONE:		7136939300

    	MAIL ADDRESS:
    		STREET 1:		4295 SAN FELIPE
    		CITY:			HOUSTON
    		STATE:			TX
    		ZIP:			77027
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>pb-20251001.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: pb-20251001.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>pb-ex99_1.htm
    <DESCRIPTION>EX-99.1
    <TEXT>
    Document 2 - file: pb-ex99_1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
    <FILENAME>pb-ex99_2.htm
    <DESCRIPTION>EX-99.2
    <TEXT>
    Document 3 - file: pb-ex99_2.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>img99541940_0.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: img99541940_0.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>img99541940_1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: img99541940_1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>pb-ex99_1s1.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: pb-ex99_1s1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>pb-ex99_1s2.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: pb-ex99_1s2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>pb-ex99_1s3.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: pb-ex99_1s3.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>pb-ex99_1s4.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: pb-ex99_1s4.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>pb-ex99_1s5.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: pb-ex99_1s5.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>pb-ex99_1s6.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: pb-ex99_1s6.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>pb-ex99_1s7.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: pb-ex99_1s7.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>pb-ex99_1s8.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: pb-ex99_1s8.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>pb-ex99_1s9.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: pb-ex99_1s9.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>pb-ex99_1s10.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: pb-ex99_1s10.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>pb-ex99_1s11.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: pb-ex99_1s11.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>pb-ex99_1s12.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 17 - file: pb-ex99_1s12.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>pb-ex99_1s13.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 18 - file: pb-ex99_1s13.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>19
    <FILENAME>pb-20251001.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT
    <TEXT>
    Document 19 - file: pb-20251001.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>21
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 21 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>22
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 22 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>23
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 23 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>25
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 25 - file: FilingSummary.html

    Document 25 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>27
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 27 - file: MetaLinks.json

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>28
    <FILENAME>0001193125-25-225797-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 28 - file: 0001193125-25-225797-xbrl.zip

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>29
    <FILENAME>pb-20251001_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 29 - file: pb-20251001_htm.html

    Document 29 - RAW XML: pb-20251001_htm.xml

    </DOCUMENT>
    </SEC-DOCUMENT>