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Organization and Description of Business | 9 Months Ended
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Sep. 30, 2017
Accounting Policies [Abstract] |
Organization and Description of Business | 1. Organization and Description of Business WisdomTree Investments, Inc., through its global subsidiaries (collectively, “WisdomTree” or the “Company”), is an exchange traded product (“ETP”) sponsor and asset manager headquartered in New York. WisdomTree offers ETPs covering equity, fixed income, currency, alternative and commodity asset classes. The Company has the following wholly-owned operating subsidiaries:
| • |  | WisdomTree Asset Management, Inc. (“WTAM”) is a New York based investment adviser registered with the SEC providing investment advisory and other management services to the WisdomTree Trust (“WTT”) and WisdomTree exchange traded funds (“ETFs”).
| • |  | Boost Management Limited (“BML”) is a Jersey based management company providing investment and other management services to Boost Issuer PLC (“BI”) and Boost ETPs.
| • |  | WisdomTree Europe Limited (“WisdomTree Europe”) is a U.K. based company registered with the Financial Conduct Authority providing management and other services to BML and WisdomTree Management Limited.
| • |  | WisdomTree Management Limited (“WTML”) is an Ireland based management company providing investment and other management services to WisdomTree Issuer plc (“WTI”) and WisdomTree UCITS ETFs.
| • |  | WisdomTree Japan Inc. (“WTJ”) is a Japan based company that is registered with Japan’s Ministry of Finance and serves the institutional market selling U.S. listed WisdomTree ETFs in Japan.
| • |  | WisdomTree Commodity Services, LLC (“WTCS”) is a New York based company that serves as the managing owner and commodity pool operator of the WisdomTree Continuous Commodity Index Fund. WTCS is registered with the Commodity Futures Trading Commission (“CFTC”) and is a member of the National Futures Association (“NFA”).
| • |  | WisdomTree Asset Management Canada, Inc. (“WTAMC”) is a Canada based investment fund manager registered with the Ontario Securities Commission providing fund management services to locally-listed WisdomTree ETFs.
The WisdomTree ETFs are issued in the U.S. by WTT. WTT, a non-consolidated third party, is a Delaware statutory trust registered with the SEC as an open-end management investment company. The Company has licensed to WTT the use of certain of its own indexes on an exclusive basis for the WisdomTree ETFs in the U.S. The Boost ETPs are issued by BI. BI, a non-consolidated third party, is a public limited company domiciled in Ireland. The WisdomTree UCITS ETFs are issued by WTI. WTI, a non-consolidated third party, is a public limited company domiciled in Ireland. The Board of Trustees and Board of Directors of WTT, BI and WTI, respectively, are separate from the Board of Directors of the Company. The respective Trustees and Directors of WTT, BI and WTI, as applicable, are primarily responsible for overseeing the management and affairs of the WisdomTree ETFs, Boost ETPs and the WisdomTree UCITS ETFs for the benefit of the WisdomTree ETF, Boost ETP and the WisdomTree UCITS ETF shareholders, respectively, and have contracted with the Company to provide for general management and administration services. The Company, in turn, has contracted with third parties to provide the majority of these administration services. In addition, certain officers of the Company provide general management services for WTT, BI and WTI.

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- Definition The entire disclosure for the business description and basis of presentation concepts. Business description describes the nature and type of organization including but not limited to organizational structure as may be applicable to holding companies, parent and subsidiary relationships, business divisions, business units, business segments, affiliates and information about significant ownership of the reporting entity. Basis of presentation describes the underlying basis used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -URI http://asc.fasb.org/topic&trid=2122149 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -URI http://asc.fasb.org/topic&trid=2134479 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -URI http://asc.fasb.org/topic&trid=2122369 + Details
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