Fair Value of BCH - Changes in Quantity of BCH and Respective Fair Value (Details) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2025 USD ($) BitcoinCash	Mar. 31, 2024 USD ($)	Mar. 31, 2025 USD ($) BitcoinCash	Mar. 31, 2024 USD ($) BitcoinCash	Jun. 30, 2024 USD ($) BitcoinCash
Fair Value Disclosures [Abstract]
Investment Owned, Balance \| BitcoinCash			344,528.53494921	304,664.86473559	304,664.86473559
BCH contributed \| BitcoinCash			53,481.86283225		47,623.1743038
BCH distributed for Sponsor's Fee, related party \| BitcoinCash			(7,032.28724665)		(7,759.50409018)
Net change in unrealized depreciation on investment in BCH \| BitcoinCash			0		0
Net realized loss on investment in BCH \| BitcoinCash			0		0
Investment Owned, Balance \| BitcoinCash	390,978.11053481		390,978.11053481		344,528.53494921
Investment Owned, at Fair Value \| $			$ 135,014	$ 92,012	$ 92,012
BCH contributed \| $			21,697		22,716
BCH distributed for Sponsor's Fee, related party \| $			(2,706)		(2,469)
Net change in unrealized appreciation/depreciation on investment in BCH \| $	$ (52,339)	$ 120,692	(35,860)	108,391	23,205
Net realized loss on investment in BCH \| $	(45)	$ (96)	(23)	$ (640)	(450)
Investment Owned, at Fair Value \| $	$ 118,122		$ 118,122		$ 135,014