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BITCOIN - Narrative (Details)
$ in Millions
Sep. 30, 2025
USD ($)
bitcoin
Jun. 30, 2025
bitcoin
Mar. 31, 2025
bitcoin
Dec. 31, 2024
USD ($)
bitcoin
Sep. 30, 2024
bitcoin
Jun. 30, 2024
bitcoin
Mar. 31, 2024
bitcoin
Dec. 31, 2023
bitcoin
Platform Operator, Crypto-Asset [Line Items]                
Number of bitcoins (in bitcoin) 8,780 8,692 8,584 8,485 8,363 8,211 8,038 8,038
Crypto-Asset, Investing Purposes                
Platform Operator, Crypto-Asset [Line Items]                
Number of bitcoins (in bitcoin) 8,780     8,485        
Bitcoin, purchase value | $ $ 282.2     $ 251.5        
Crypto-Asset, Operating Purposes                
Platform Operator, Crypto-Asset [Line Items]                
Number of bitcoins (in bitcoin) 144     158        
Bitcoin, purchase value | $ $ 16.5     $ 15.3