Fair Value of XLM - Summary of Changes in Quantity of XLM and the Respective Fair Value (Details) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026 USD ($) Xlm	Jun. 30, 2025 USD ($) Xlm	Jun. 30, 2026 USD ($) Xlm	Jun. 30, 2025 USD ($) Xlm
Fair Value Disclosures [Abstract]
Investment Owned, Balance \| Xlm			116,409,174.8450132	118,986,745.322798
XLM contributed \| Xlm			2,080,633.5559904	0
XLM distributed for Sponsor's Fee, related party \| Xlm			(1,445,844.1170985)	(1,466,053.5577133)
Net change in unrealized appreciation/depreciation on investment in XLM \| Xlm			0	0
Net realized gain (loss) on investment in XLM \| Xlm			0	0
Investment Owned, Balance \| Xlm	117,043,964.2839051	117,520,691.765085	117,043,964.2839051	117,520,691.765085
Investment Owned, at Fair Value \| $			$ 23,191	$ 39,390
XLM contributed \| $			340	0
XLM distributed for Sponsor's Fee, related party \| $			(260)	(450)
Net change in unrealized appreciation/depreciation on investment in XLM \| $	$ 2,089	$ (2,639)	(1,490)	(10,563)
Net realized (loss) gain on investment in XLM \| $	(16)	50	(28)	159
Investment Owned, at Fair Value \| $	$ 21,753	$ 28,536	$ 21,753	$ 28,536