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Cover - USD ($)
 12 Months Ended
Dec. 31, 2023
Feb. 20, 2024
Jun. 30, 2023
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Transition Report false    
Document Financial Statement Error Correction [Flag] false    
Entity Interactive Data Current Yes    
ICFR Auditor Attestation Flag true    
Amendment Flag false    
Document Period End Date Dec. 31, 2023    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Documents Incorporated by Reference [Text Block]

The information required by Part III of this Report, to the extent not set forth herein, is incorporated herein by reference from the registrant’s definitive proxy statement relating to the Annual Meeting of Stockholders to be held in 2024, which definitive proxy statement shall be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year to which this Report relates.   

    
Entity Information [Line Items]      
Entity Registrant Name WisdomTree, Inc.    
Entity Central Index Key 0000880631    
Entity File Number 001-10932    
Entity Tax Identification Number 13-3487784    
Entity Incorporation, State or Country Code DE    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Shell Company false    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Public Float     $ 948,550,832
Entity Contact Personnel [Line Items]      
Entity Address, Address Line One 250 West 34th Street    
Entity Address, Address Line Two 3rd Floor    
Entity Address, City or Town New York    
Entity Address, State or Province NY    
Entity Address, Postal Zip Code 10119    
Entity Phone Fax Numbers [Line Items]      
City Area Code 212    
Local Phone Number 801-2080    
Entity Listings [Line Items]      
Entity Common Stock, Shares Outstanding   151,853,699  
Common Stock, $0.01 par value      
Entity Listings [Line Items]      
Title of 12(b) Security Common Stock, $0.01 par value    
Trading Symbol WT    
Security Exchange Name NYSE    
Preferred Stock Purchase Rights      
Entity Listings [Line Items]      
Title of 12(b) Security Preferred Stock Purchase Rights    
Trading Symbol None    
Security Exchange Name NYSE