    <SEC-DOCUMENT>0000791963-20-000045-index.html : 20201030
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    <ACCEPTANCE-DATETIME>20201030114650
    ACCESSION NUMBER:		0000791963-20-000045
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		28
    CONFORMED PERIOD OF REPORT:	20201030
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20201030
    DATE AS OF CHANGE:		20201030

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			OPPENHEIMER HOLDINGS INC
    		CENTRAL INDEX KEY:			0000791963
    		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211]
    		IRS NUMBER:				980080034
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-12043
    		FILM NUMBER:		201275849

    	BUSINESS ADDRESS:
    		STREET 1:		85 BROAD STREET
    		STREET 2:		22ND FLOOR
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10004
    		BUSINESS PHONE:		(212) 825-4331

    	MAIL ADDRESS:
    		STREET 1:		85 BROAD STREET
    		STREET 2:		22ND FLOOR
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10004

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	FAHNESTOCK VINER HOLDINGS INC
    		DATE OF NAME CHANGE:	19950725

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	VINER E A HOLDINGS LTD
    		DATE OF NAME CHANGE:	19880622

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	GOLDALE INVESTMENTS LTD
    		DATE OF NAME CHANGE:	19861030
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>opy-20201030.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: opy-20201030.htm

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    <DOCUMENT>
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    <FILENAME>a3q-20_investorxpresenta.htm
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