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Organization and Description of Business | 3 Months Ended
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Mar. 31, 2019
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, commodity, fixed income, leveraged and inverse, currency and alternative strategies. The Company has the following wholly-owned operating subsidiaries:
| • |  | WisdomTree Asset Management, Inc. 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”). 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.
| • |  | ETFS Management Company (Jersey) Limited (“ManJer”) is a Jersey based management company providing management services to nine issuers (the “ETFS Issuers”) in respect of the ETPs issued and listed by the ETFS Issuers covering commodity, currency and leveraged-and-inverse strategies.
| • |  | Boost Management Limited (“BML”) is a Jersey based management company providing management services to Boost Issuer PLC (“BI”) in respect of the Boost ETPs issued by BI. BI, a non-consolidated third party, is a public limited company domiciled in Ireland.
| • |  | WisdomTree Management Limited (“WML”) is an Ireland based management company providing management services to WisdomTree Issuer plc (“WTI”) in respect of the WisdomTree UCITS ETFs issued by WTI. WTI, a non-consolidated third party, is a public limited company domiciled in Ireland.
| • |  | WisdomTree UK Limited (“WTUK”) is a U.K. based company registered with the Financial Conduct Authority currently providing distribution and support services to ManJer, BML and WML.
| • |  | WisdomTree Europe Limited is a U.K. based company which is the legacy distributor of the Boost ETPs and WisdomTree UCITS ETFs. These services are now provided directly by WTUK. WisdomTree Europe Limited is no longer regulated and does not provide any regulated services.
| • |  | WisdomTree Ireland Limited is an Ireland based company authorized by the Central Bank of Ireland providing distribution services to ManJer, BML and WML.
| • |  | 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 Canadian ETFs.
| • |  | 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 and is a member of the National Futures Association.
Acquisition of ETFS On April 11, 2018 , the Company acquired the European exchange-traded commodity, currency and leveraged-and-inverse business (“ETFS”) of ETFS Capital Limited (“ETFS Capital”, formerly known as ETF Securities Limited). This acquisition is referred to throughout the consolidated financial statements as the ETFS Acquisition. See Note 3 for additional information. Restructuring of Distribution Strategy in Japan In July 2018, the Company determined to restructure its distribution strategy in Japan and has expanded its existing relationship with Premia Partners Company Limited to manage distribution of the Company’s ETFs in Japan. As a result, WisdomTree Japan Inc. (“WTJ”) has ceased operations and is in the process of being liquidated. During the three months ended March 31, 2019 and 2018, WTJ reported an operating loss of $430 and $1,232, respectively. WTJ also recognized an impairment expense of $572 in connection with the termination of its office lease on March 31, 2019.

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -URI http://asc.fasb.org/topic&trid=2122369 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -URI http://asc.fasb.org/topic&trid=2122149 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -URI http://asc.fasb.org/topic&trid=2134479 + Details
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