<SEC-DOCUMENT>0001015328-23-000221-index.html : 20231212
<SEC-HEADER>0001015328-23-000221.hdr.sgml : 20231212
<ACCEPTANCE-DATETIME>20231212162731
ACCESSION NUMBER:		0001015328-23-000221
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		14
CONFORMED PERIOD OF REPORT:	20231211
ITEM INFORMATION:		Entry into a Material Definitive Agreement
ITEM INFORMATION:		Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20231212
DATE AS OF CHANGE:		20231212

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WINTRUST FINANCIAL CORP
		CENTRAL INDEX KEY:			0001015328
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				363873352
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35077
		FILM NUMBER:		231481555

	BUSINESS ADDRESS:	
		STREET 1:		9700 WEST HIGGINS ROAD, 8TH FLOOR
		CITY:			ROSEMONT
		STATE:			IL
		ZIP:			60018
		BUSINESS PHONE:		8479399000

	MAIL ADDRESS:	
		STREET 1:		9700 WEST HIGGINS ROAD, 8TH FLOOR
		CITY:			ROSEMONT
		STATE:			IL
		ZIP:			60018
</SEC-HEADER>
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<TYPE>8-K
<SEQUENCE>1
<FILENAME>wtfc-20231211.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: wtfc-20231211.htm

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<DOCUMENT>
<TYPE>EX-10.1
<SEQUENCE>2
<FILENAME>ex101secondamendmenttoamen.htm
<DESCRIPTION>EX-10.1 SECOND AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT
<TEXT>
Document 2 - file: ex101secondamendmenttoamen.htm

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<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>3
<FILENAME>wtfc-20231211.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
<TEXT>
Document 3 - file: wtfc-20231211.xsd

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<DOCUMENT>
<TYPE>EX-101.DEF
<SEQUENCE>4
<FILENAME>wtfc-20231211_def.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
<TEXT>
Document 4 - file: wtfc-20231211_def.xml

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<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>5
<FILENAME>wtfc-20231211_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
<TEXT>
Document 5 - file: wtfc-20231211_lab.xml

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<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>6
<FILENAME>wtfc-20231211_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
<TEXT>
Document 6 - file: wtfc-20231211_pre.xml

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<TYPE>XML
<SEQUENCE>7
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 7 - file: R1.htm

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<DOCUMENT>
<TYPE>XML
<SEQUENCE>8
<FILENAME>wtfc-20231211_htm.xml
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<TEXT>
Document 8 - file: wtfc-20231211_htm.html

Document 8 - RAW XML: wtfc-20231211_htm.xml

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<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>9
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 9 - file: Financial_Report.xlsx

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<DOCUMENT>
<TYPE>XML
<SEQUENCE>10
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 10 - file: Show.js

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<DOCUMENT>
<TYPE>XML
<SEQUENCE>11
<FILENAME>report.css
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<TEXT>
Document 11 - file: report.css

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<DOCUMENT>
<TYPE>XML
<SEQUENCE>12
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 12 - file: FilingSummary.html

Document 12 - RAW XML: FilingSummary.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>14
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 14 - file: MetaLinks.json

</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>15
<FILENAME>0001015328-23-000221-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 15 - file: 0001015328-23-000221-xbrl.zip

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