Organization and Basis of Presentation	6 Months Ended
Jun. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Basis of Presentation	Organization and basis of presentation Organization Oppenheimer Holdings Inc. (“OPY”) is incorporated under the laws of the State of Delaware. The consolidated financial statements include the accounts of OPY and its subsidiaries (together, the “Company”). The principal subsidiaries of OPY are Oppenheimer & Co. Inc. (“Oppenheimer”), a registered broker dealer in securities, Oppenheimer Asset Management Inc. (“OAM”) and its wholly owned subsidiary, Oppenheimer Investment Management Inc. (“OIM”), both registered investment advisors under the Investment Advisors Act of 1940, Oppenheimer Trust Company of Delaware (“Oppenheimer Trust”), a limited purpose trust company that provides fiduciary services such as trust and estate administration and investment management, Oppenheimer Multifamily Housing & Healthcare Finance, Inc. (“OMHHF”), which is engaged in commercial mortgage origination and servicing, OPY Credit Corp., which offers syndication as well as trading of issued corporate loans, Oppenheimer Europe Ltd., based in the United Kingdom, with an office in the Isle of Jersey and Switzerland, which provides institutional equities and fixed income brokerage and corporate financial services and is regulated by the Financial Conduct Authority, and Oppenheimer Investments Asia Limited, based in Hong Kong, China, which provides assistance in accessing the U.S. equities markets and limited mergers and acquisitions advisory services to Asia-based companies, as well as offering fixed income brokerage services to institutional investors. Oppenheimer provides its services from 96 offices in 25 states located throughout the United States and in 6 foreign jurisdictions. Oppenheimer owns Freedom Investments, Inc. (“Freedom”), a registered broker dealer in securities, which also operates the BUY and HOLD division, offering on-line discount brokerage and dollar-based investing services, and Oppenheimer Israel (OPCO) Ltd., which is engaged in offering investment services in the State of Israel. Freedom has been approved to operate as a representative office in Beijing, China. Oppenheimer holds a trading permit on the New York Stock Exchange and is a member of several other regional exchanges in the United States. Basis of Presentation The accompanying condensed consolidated financial statements of the Company have been prepared pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”) regarding interim financial reporting. Accordingly, they do not include all of the information and notes required by accounting principles generally accepted in the United States of America (“U.S. GAAP”) for complete financial statements and should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2013 (the “Form 10-K”). The accompanying December 31, 2013 condensed consolidated balance sheet data was derived from the audited consolidated financial statements, but does not include all disclosures required by U.S. GAAP for annual financial statement purposes. The accompanying condensed consolidated financial statements reflect all adjustments which are, in the opinion of management, necessary for a fair presentation of the financial position, results of operations and cash flows for the interim periods presented. Preparing financial statements requires management to make estimates and assumptions that affect the amounts that are reported in the financial statements and the accompanying disclosures. Although these estimates are based on management’s knowledge of current events and actions that the Company may undertake in the future, actual results may differ materially from the estimates. The condensed consolidated results of operations for the three month and six month periods ended June 30, 2014 were not necessarily indicative of the results to be expected for any future interim or annual period. Certain prior period amounts have been reclassified to conform to the current period presentation. Accounting standards require the Company to present non-controlling interests as a separate component of stockholders’ equity on the Company’s condensed consolidated balance sheet. As of June 30, 2014, the Company owned 83.68% of OMHHF and the non-controlling interest recorded in the condensed consolidated balance sheet was $5.9 million.

Organization and basis of presentation

Organization

Oppenheimer Holdings Inc. (“OPY”) is incorporated under the laws of the State of Delaware. The consolidated financial statements include the accounts of OPY and its subsidiaries (together, the “Company”). The principal subsidiaries of OPY are Oppenheimer & Co. Inc. (“Oppenheimer”), a registered broker dealer in securities, Oppenheimer Asset Management Inc. (“OAM”) and its wholly owned subsidiary, Oppenheimer Investment Management Inc. (“OIM”), both registered investment advisors under the Investment Advisors Act of 1940, Oppenheimer Trust Company of Delaware (“Oppenheimer Trust”), a limited purpose trust company that provides fiduciary services such as trust and estate administration and investment management, Oppenheimer Multifamily Housing & Healthcare Finance, Inc. (“OMHHF”), which is engaged in commercial mortgage origination and servicing, OPY Credit Corp., which offers syndication as well as trading of issued corporate loans, Oppenheimer Europe Ltd., based in the United Kingdom, with an office in the Isle of Jersey and Switzerland, which provides institutional equities and fixed income brokerage and corporate financial services and is regulated by the Financial Conduct Authority, and Oppenheimer Investments Asia Limited, based in Hong Kong, China, which provides assistance in accessing the U.S. equities markets and limited mergers and acquisitions advisory services to Asia-based companies, as well as offering fixed income brokerage services to institutional investors.

Oppenheimer provides its services from 96 offices in 25 states located throughout the United States and in 6 foreign jurisdictions. Oppenheimer owns Freedom Investments, Inc. (“Freedom”), a registered broker dealer in securities, which also operates the BUY and HOLD division, offering on-line discount brokerage and dollar-based investing services, and Oppenheimer Israel (OPCO) Ltd., which is engaged in offering investment services in the State of Israel. Freedom has been approved to operate as a representative office in Beijing, China. Oppenheimer holds a trading permit on the New York Stock Exchange and is a member of several other regional exchanges in the United States.

Basis of Presentation

The accompanying condensed consolidated financial statements of the Company have been prepared pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”) regarding interim financial reporting. Accordingly, they do not include all of the information and notes required by accounting principles generally accepted in the United States of America (“U.S. GAAP”) for complete financial statements and should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2013 (the “Form 10-K”). The accompanying December 31, 2013 condensed consolidated balance sheet data was derived from the audited consolidated financial statements, but does not include all disclosures required by U.S. GAAP for annual financial statement purposes. The accompanying condensed consolidated financial statements reflect all adjustments which are, in the opinion of management, necessary for a fair presentation of the financial position, results of operations and cash flows for the interim periods presented. Preparing financial statements requires management to make estimates and assumptions that affect the amounts that are reported in the financial statements and the accompanying disclosures. Although these estimates are based on management’s knowledge of current events and actions that the Company may undertake in the future, actual results may differ materially from the estimates. The condensed consolidated results of operations for the three month and six month periods ended June 30, 2014 were not necessarily indicative of the results to be expected for any future interim or annual period.

Certain prior period amounts have been reclassified to conform to the current period presentation.

Accounting standards require the Company to present non-controlling interests as a separate component of stockholders’ equity on the Company’s condensed consolidated balance sheet. As of June 30, 2014, the Company owned 83.68% of OMHHF and the non-controlling interest recorded in the condensed consolidated balance sheet was $5.9 million.