v3.26.1
Significant Accounting Policies - Summary of Changes in Quantity of Crypto Assets (Detail)
6 Months Ended 12 Months Ended
Jun. 30, 2026
USD ($)
Dec. 31, 2025
USD ($)
Crypto Asset, Activity [Line Items]    
Net realized gain (loss) on investment $ 94,107,222  
Bitcoin (BTC) [Member]    
Crypto Asset, Activity [Line Items]    
Begining balance, Units 8,836.1188 10,632.1413
Purchases, Units 44.9106 3.5303
Sales, Units (1,820.8624) (1,799.5528)
Ending balance, Units 7,060.167 8,836.1188
Beginning balance, Fair value $ 773,549,000 $ 992,968,000
Purchases 2,707,000 328,000
Sales (131,256,000) (165,407,000)
Net realized gain (loss) on investment 89,333,000 119,592,000
Net change in unrealized appreciation (depreciation) on investment (319,784,000) (173,932,000)
Ending balance, Fair value $ 414,549,000 $ 773,549,000
Ethereum (ETH) [Member]    
Crypto Asset, Activity [Line Items]    
Begining balance, Units 53,393.7681 65,011.3388
Purchases, Units 270.3511 570.5775
Sales, Units (11,163.5901) (12,188.1482)
Ending balance, Units 42,500.5291 53,393.7681
Beginning balance, Fair value $ 158,683,000 $ 217,164,000
Purchases 438,000 1,469,000
Sales (24,270,000) (36,229,000)
Net realized gain (loss) on investment 17,032,000 23,651,000
Net change in unrealized appreciation (depreciation) on investment (84,795,000) (47,372,000)
Ending balance, Fair value $ 67,088,000 $ 158,683,000
XRP (XRP) [Member]    
Crypto Asset, Activity [Line Items]    
Begining balance, Units 26,808,148.38 30,686,126.7901
Purchases, Units 324,630.1329 1,439,571.8875
Sales, Units (5,235,574.8753) (5,317,550.2976)
Ending balance, Units 21,897,203.6376 26,808,148.38
Beginning balance, Fair value $ 48,981,000 $ 64,340,000
Purchases 398,000 3,136,000
Sales (7,728,000) (11,128,000)
Net realized gain (loss) on investment 3,843,000 4,962,000
Net change in unrealized appreciation (depreciation) on investment (22,651,000) (12,329,000)
Ending balance, Fair value $ 22,843,000 $ 48,981,000
Solana (SOL) [Member]    
Crypto Asset, Activity [Line Items]    
Begining balance, Units 248,993.3542 256,477.2246
Purchases, Units 3,979.9398 36,637.579
Sales, Units (48,787.7381) (44,121.4494)
Ending balance, Units 204,185.5559 248,993.3542
Beginning balance, Fair value $ 30,865,000 $ 49,677,000
Purchases 354,000 5,491,000
Sales (4,412,000) (6,154,000)
Net realized gain (loss) on investment 921,000 (693,000)
Net change in unrealized appreciation (depreciation) on investment (12,696,000) (17,456,000)
Ending balance, Fair value $ 15,032,000 $ 30,865,000
Hyperliquid [Member]    
Crypto Asset, Activity [Line Items]    
Purchases, Units 89,491.2733  
Sales, Units (10,564.679)  
Ending balance, Units 78,926.5943  
Purchases $ 5,884,000  
Sales (678,000)  
Net realized gain (loss) on investment (17,000)  
Net change in unrealized appreciation (depreciation) on investment (22,000)  
Ending balance, Fair value $ 5,167,000  
Stellar Lumens [Member]    
Crypto Asset, Activity [Line Items]    
Purchases, Units 12,588,308.0031  
Sales, Units (729,556.3826)  
Ending balance, Units 11,858,751.6205  
Purchases $ 2,847,000  
Sales (151,000)  
Net realized gain (loss) on investment (15,000)  
Net change in unrealized appreciation (depreciation) on investment (477,000)  
Ending balance, Fair value $ 2,204,000  
Cardano (ADA) [Member]    
Crypto Asset, Activity [Line Items]    
Begining balance, Units 16,225,913.9193 19,192,702.8414
Purchases, Units 83,667.1776 411,637.158
Sales, Units (3,160,403.4213) (3,378,426.0801)
Ending balance, Units 13,149,177.6756 16,225,913.9193
Beginning balance, Fair value $ 5,402,000 $ 16,262,000
Purchases 12,000 242,000
Sales (857,000) (1,558,000)
Net realized gain (loss) on investment (3,378,000) (2,970,000)
Net change in unrealized appreciation (depreciation) on investment 724,000 (6,574,000)
Ending balance, Fair value $ 1,903,000 $ 5,402,000
Chainlink (LINK) [member]    
Crypto Asset, Activity [Line Items]    
Begining balance, Units 313,437.5474 342,097.278
Purchases, Units 1,615.7481 30,202.6854
Sales, Units (61,049.7732) (58,862.416)
Ending balance, Units 254,003.5223 313,437.5474
Beginning balance, Fair value $ 3,837,000 $ 6,828,000
Purchases 12,000 402,000
Sales (578,000) (814,000)
Net realized gain (loss) on investment 71,000 (33,000)
Net change in unrealized appreciation (depreciation) on investment (1,513,000) (2,546,000)
Ending balance, Fair value $ 1,829,000 $ 3,837,000
Litecoin (LTC) [Member]    
Crypto Asset, Activity [Line Items]    
Begining balance, Units 33,920.6399 0
Purchases, Units 174.8584 40,872.69
Sales, Units (6,606.8899) (6,952.0501)
Ending balance, Units 27,488.6084 33,920.6399
Beginning balance, Fair value $ 2,598,000 $ 0
Purchases 8,000 5,239,000
Sales (367,000) (566,000)
Net realized gain (loss) on investment (480,000) (325,000)
Net change in unrealized appreciation (depreciation) on investment (610,000) (1,750,000)
Ending balance, Fair value $ 1,149,000 $ 2,598,000
Sui (SUI) [Member]    
Crypto Asset, Activity [Line Items]    
Begining balance, Units 1,653,967.259 0
Purchases, Units 8,526.0832 1,985,863.224
Sales, Units (322,151.3405) (331,895.965)
Ending balance, Units 1,340,342.0017 1,653,967.259
Beginning balance, Fair value $ 2,308,000 $ 0
Purchases 6,000 7,705,000
Sales (337,000) (601,000)
Net realized gain (loss) on investment (984,000) (759,000)
Net change in unrealized appreciation (depreciation) on investment (61,000) (4,037,000)
Ending balance, Fair value $ 932,000 $ 2,308,000
Avalanche (AVAX) [Member]    
Crypto Asset, Activity [Line Items]    
Begining balance, Units 190,139.0261 220,206.973
Purchases, Units   4,421.5228
Sales, Units (190,139.0261) (34,489.4697)
Ending balance, Units   190,139.0261
Beginning balance, Fair value $ 2,345,000 $ 7,886,000
Purchases   76,000
Sales (1,715,000) (499,000)
Net realized gain (loss) on investment (2,349,000) (561,000)
Net change in unrealized appreciation (depreciation) on investment $ 1,719,000 (4,557,000)
Ending balance, Fair value   $ 2,345,000
Polkadot (DOT) [Member]    
Crypto Asset, Activity [Line Items]    
Begining balance, Units 729,577.6306 816,152.3229
Purchases, Units   49,191.1633
Sales, Units (729,577.6306) (135,765.8556)
Ending balance, Units   729,577.6306
Beginning balance, Fair value $ 1,300,000 $ 5,434,000
Purchases   110,000
Sales (911,000) (323,000)
Net realized gain (loss) on investment (9,870,000) (2,288,000)
Net change in unrealized appreciation (depreciation) on investment $ 9,481,000 (1,633,000)
Ending balance, Fair value   $ 1,300,000
Bitcoin Cash (BCH) [Member]    
Crypto Asset, Activity [Line Items]    
Begining balance, Units 0 10,611.6785
Sales, Units   (10,611.6785)
Ending balance, Units   0
Beginning balance, Fair value $ 0 $ 4,625,000
Sales   (4,462,000)
Net realized gain (loss) on investment   9,000
Net change in unrealized appreciation (depreciation) on investment   (172,000)
Ending balance, Fair value   $ 0
Uniswap (UNI) [Member]    
Crypto Asset, Activity [Line Items]    
Begining balance, Units 0 0
Purchases, Units   320,996.9789
Sales, Units   (320,996.9789)
Ending balance, Units   0
Beginning balance, Fair value $ 0 $ 0
Purchases   4,351,000
Sales   (3,751,000)
Net realized gain (loss) on investment   (600,000)
Ending balance, Fair value   $ 0
NEAR Protocol (NEAR) [Member]    
Crypto Asset, Activity [Line Items]    
Begining balance, Units 0 680,674.8151
Sales, Units   (680,674.8151)
Ending balance, Units   0
Beginning balance, Fair value $ 0 $ 3,330,000
Sales   (3,326,000)
Net realized gain (loss) on investment   (1,425,000)
Net change in unrealized appreciation (depreciation) on investment   1,421,000
Ending balance, Fair value   $ 0