v3.25.2
Fair Value Measurement - Summary of Assets Measured At Fair Value (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total Investments $ 21,588,740 $ 18,818,357
Investment in Bitcoin [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total Investments 21,588,740 18,818,357
Fair Value, Inputs, Level 1 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total Investments 21,588,740 18,818,357
Fair Value, Inputs, Level 1 [Member] | Investment in Bitcoin [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total Investments 21,588,740 18,818,357
Fair Value, Inputs, Level 2 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total Investments 0 0
Fair Value, Inputs, Level 2 [Member] | Investment in Bitcoin [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total Investments 0 0
Fair Value, Inputs, Level 3 [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total Investments 0 0
Fair Value, Inputs, Level 3 [Member] | Investment in Bitcoin [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total Investments $ 0 $ 0