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Exit Activities - Schedule of Operating Losses (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating losses	$ 0	$ 428	$ 3,336
WTAMC [Member]
Operating losses	0	$ 428	2,786
WisdomTree Japan Inc. ("WTJ") [Member]
Operating losses	$ 0		$ 550

X

- Definition

Amount of operating income (loss) attributable to disposal group, including, but not limited to, discontinued operation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5B
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760

+ Details

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- Details

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