    <SEC-DOCUMENT>0001018164-25-000041-index.html : 20250404
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    <ACCEPTANCE-DATETIME>20250404153050
    ACCESSION NUMBER:		0001018164-25-000041
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		18
    CONFORMED PERIOD OF REPORT:	20250331
    ITEM INFORMATION:		Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20250404
    DATE AS OF CHANGE:		20250404

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			WILLIS LEASE FINANCE CORP
    		CENTRAL INDEX KEY:			0001018164
    		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-MACHINERY, EQUIPMENT & SUPPLIES [5080]
    		ORGANIZATION NAME:           	07 Trade & Services
    		EIN:				680070656
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-15369
    		FILM NUMBER:		25813612

    	BUSINESS ADDRESS:
    		STREET 1:		4700 LYONS TECHNOLOGY PARKWAY
    		CITY:			COCONUT CREEK
    		STATE:			FL
    		ZIP:			33073
    		BUSINESS PHONE:		5613499989

    	MAIL ADDRESS:
    		STREET 1:		4700 LYONS TECHNOLOGY PARKWAY
    		CITY:			COCONUT CREEK
    		STATE:			FL
    		ZIP:			33073
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>wlfc-20250331.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: wlfc-20250331.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.1
    <SEQUENCE>2
    <FILENAME>wlfc-amendmenttoemployme.htm
    <DESCRIPTION>EX-10.1
    <TEXT>
    Document 2 - file: wlfc-amendmenttoemployme.htm

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    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>3
    <FILENAME>wlfc-20250331.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
    <TEXT>
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    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>wlfc-amendmenttoemployme001.jpg
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    <SEQUENCE>9
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    <TYPE>XML
    <SEQUENCE>11
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    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
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    <TYPE>EXCEL
    <SEQUENCE>12
    <FILENAME>Financial_Report.xlsx
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
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    <TYPE>XML
    <SEQUENCE>13
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    <TEXT>
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    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>14
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
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    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>16
    <FILENAME>FilingSummary.xml
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    <TEXT>
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    <TYPE>JSON
    <SEQUENCE>18
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    <TYPE>ZIP
    <SEQUENCE>19
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    <SEQUENCE>20
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