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DERIVATIVES - Schedule of notional amount of derivative contracts outstanding (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
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Crypto asset borrowings with embedded derivatives | Designated as fair value hedging instruments |  |
Derivative [Line Items] |  |
Notional amount of derivative contracts outstanding in native units | $ 51,149 | $ 80,999
Crypto asset borrowings with embedded derivatives | Not designated as hedging instruments |  |
Derivative [Line Items] |  |
Notional amount of derivative contracts outstanding in native units | 62,371 | 70,462
Crypto asset futures | Designated as fair value hedging instruments |  |
Derivative [Line Items] |  |
Notional amount of derivative contracts outstanding in native units | 7,889 | 136,230
Crypto asset futures | Not designated as hedging instruments |  |
Derivative [Line Items] |  |
Notional amount of derivative contracts outstanding in native units | 13,012 | 12,462
Accounts receivable denominated in crypto assets | Not designated as hedging instruments |  |
Derivative [Line Items] |  |
Notional amount of derivative contracts outstanding in native units | 59,714 | 101,598
Other payables denominated in crypto assets | Not designated as hedging instruments |  |
Derivative [Line Items] |  |
Notional amount of derivative contracts outstanding in native units | 13,111 | 4,267
Crypto assets pledged as collateral | Not designated as hedging instruments |  |
Derivative [Line Items] |  |
Notional amount of derivative contracts outstanding in native units | 0 | 13,103
Other | Not designated as hedging instruments |  |
Derivative [Line Items] |  |
Notional amount of derivative contracts outstanding in native units | $ 19,396 | $ 0

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