Cover - shares	12 Months Ended
	Sep. 30, 2024	Nov. 04, 2024
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Entity Interactive Data Current	Yes
Amendment Flag	false
Document Period End Date	Sep. 30, 2024
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3
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 Current Reporting Status	Yes
Entity Shell Company	false
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
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		146,103,656
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