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Summary of Significant Accounting Policies - Summary of Fair Value Estimates (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Jun. 30, 2025
Assets
Investment Owned, Fair Value	$ 740,635	$ 777,222
Investment in Bitcoin
Assets
Investment Owned, Fair Value	545,745	620,419
Investment in Ether
Assets
Investment Owned, Fair Value	120,444	88,088
Investment in SOL
Assets
Investment Owned, Fair Value	26,955	23,417
Investment in XRP
Assets
Investment Owned, Fair Value	40,543	39,140
Investment in ADA
Assets
Investment Owned, Fair Value	6,948	6,158
Level 1
Assets
Investment Owned, Fair Value	740,635	777,222
Level 1 | Investment in Bitcoin
Assets
Investment Owned, Fair Value	545,745	620,419
Level 1 | Investment in Ether
Assets
Investment Owned, Fair Value	120,444	88,088
Level 1 | Investment in SOL
Assets
Investment Owned, Fair Value	26,955	23,417
Level 1 | Investment in XRP
Assets
Investment Owned, Fair Value	40,543	39,140
Level 1 | Investment in ADA
Assets
Investment Owned, Fair Value	6,948	6,158
Level 2
Assets
Investment Owned, Fair Value	0	0
Level 2 | Investment in Bitcoin
Assets
Investment Owned, Fair Value	0	0
Level 2 | Investment in Ether
Assets
Investment Owned, Fair Value	0	0
Level 2 | Investment in SOL
Assets
Investment Owned, Fair Value	0	0
Level 2 | Investment in XRP
Assets
Investment Owned, Fair Value	0	0
Level 2 | Investment in ADA
Assets
Investment Owned, Fair Value	0	0
Level 3
Assets
Investment Owned, Fair Value	0	0
Level 3 | Investment in Bitcoin
Assets
Investment Owned, Fair Value	0	0
Level 3 | Investment in Ether
Assets
Investment Owned, Fair Value	0	0
Level 3 | Investment in SOL
Assets
Investment Owned, Fair Value	0	0
Level 3 | Investment in XRP
Assets
Investment Owned, Fair Value	0	0
Level 3 | Investment in ADA
Assets
Investment Owned, Fair Value	$ 0	$ 0

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