Organization	12 Months Ended
Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	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 Company engages in a broad range of activities in the financial services industry, including retail securities brokerage, institutional sales and trading, investment banking (both corporate and public finance), research, market-making, trust services, mortgage banking and investment advisory and asset management services. 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 LLC (“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 offices 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, and is regulated by the Securities and Futures Commission. Oppenheimer provides its services from 92 offices in 24 states located throughout the United States and in 6 foreign jurisdictions. Oppenheimer owns Freedom Investments, Inc. (“Freedom”), a registered broker dealer in securities, which provides discount brokerage 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.

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 Company engages in a broad range of activities in the financial services industry, including retail securities brokerage, institutional sales and trading, investment banking (both corporate and public finance), research, market-making, trust services, mortgage banking and investment advisory and asset management services.

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 LLC (“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 offices 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, and is regulated by the Securities and Futures Commission.

Oppenheimer provides its services from 92 offices in 24 states located throughout the United States and in 6 foreign jurisdictions. Oppenheimer owns Freedom Investments, Inc. (“Freedom”), a registered broker dealer in securities, which provides discount brokerage 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.