Fair Value of LTC - Changes in Quantity of LTC and Respective Fair Value (Details) $ in Thousands	3 Months Ended	12 Months Ended
Jun. 30, 2026 USD ($) Litecoin	Mar. 31, 2026 USD ($)	Dec. 31, 2025 USD ($)	Sep. 30, 2025 USD ($) Litecoin	Jun. 30, 2025 USD ($) Litecoin	Mar. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Sep. 30, 2024 USD ($) Litecoin	Jun. 30, 2026 USD ($) Litecoin	Jun. 30, 2025 USD ($) Litecoin	Jun. 30, 2024 USD ($) Litecoin
Fair Value Disclosures [Abstract]
Investment Owned, Balance \| Litecoin				2,018,905.79240947				1,794,013.32656083	2,018,905.79240947	1,794,013.32656083	1,505,668.18819118
LTC contributed \| Litecoin									0	274,057.77826677	327,131.54011692
LTC distributed for Sponsor's Fee, related party \| Litecoin									(49,848.64753551)	(49,165.31241813)	(38,786.40174727)
Net change in unrealized appreciation/depreciation on investment in LTC \| Litecoin									0	0	0
Net realized loss on investment in LTC \| Litecoin									0	0	0
Investment Owned, Balance \| Litecoin	1,969,057.14487396				2,018,905.79240947				1,969,057.14487396	2,018,905.79240947	1,794,013.32656083
Investment Owned, at Fair Value \| $				$ 175,867				$ 133,833	$ 175,867	$ 133,833	$ 158,667
LTC contributed \| $									0	22,624	27,463
LTC distributed for Sponsor's Fee, related party \| $									(3,933)	(4,345)	(2,989)
Net change in unrealized appreciation/depreciation on investment in LTC \| $	$ (23,593)	$ (44,589)	$ (60,553)	39,686	$ 7,743	$ (40,124)	$ 69,217	(12,977)	(89,049)	23,859	(48,686)
Net realized gain (loss) on investment in LTC \| $	(482)	$ (355)	$ 14	$ 245	(44)	$ 236	$ (9)	$ (287)	(578)	(104)	(622)
Investment Owned, at Fair Value \| $	$ 82,307				$ 175,867				$ 82,307	$ 175,867	$ 133,833