Fair Value of Ether - Schedule of Changes in Quantity of Ether and Fair Value (Details) $ in Thousands	5 Months Ended
	Dec. 31, 2024 USD ($) Ether
Fair Value Disclosures [Abstract]
Beginning balance as of July 22, 2024 (commencement of operations) | Ether	0
Purchases | Ether	136,813.5326
Sales for the redemption of Shares | Ether	(15,711.6744)
Ending balance as of December 31, 2024 | Ether	121,101.8582
Beginning balance as of July 22, 2024 (commencement of operations)	$ 0
Purchases	453,518
Sales for the redemption of Shares	(49,804)
Net realized gain (loss) on investment in ether sold for redemptions	(9,412)	[1],[2]
Change in unrealized appreciation (depreciation) on investment in ether	10,227	[1],[2]
Ending balance as of December 31, 2024	$ 404,529	[3]

[1] No comparative financial statements have been provided as the Trust’s operations commenced on July 22, 2024.

[2] No comparative financial statements have been provided as the Trust’s operations commenced on July 22, 2024.

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