Fair Value of Ether - Additional Information (Details)	9 Months Ended
	Sep. 30, 2024 USD ($) Ether $ / shares		Jul. 21, 2024 USD ($) Ether
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Trust held net closing balance of ether | Ether	100,152.9571		0
Investment in ether, at fair value	$ 259,851,000	[1]	$ 0
CME CF Ether
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Investment in ether, at fair value	$ 259,503,322
Ether index price per share | $ / shares	$ 2,591.07
Lukka Prime Rate
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Investment in ether, at fair value	$ 259,850,853
Ether index price per share | $ / shares	$ 2,594.54

[1] No comparative period presented as the Trust commenced operations on July 22, 2024.