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FAIR VALUE MEASUREMENTS - Schedule of fair value of assets and liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022 | Sep. 30, 2022
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash and cash equivalents | $ 5,100,799 | $ 4,425,021 | $ 5,006,584
Derivative assets | 19,997 | 3,838 |
Crypto asset loans receivable | 57,517 | 85,826 |
Safeguarding customer crypto assets | 114,291,909 | 75,413,188 |
Derivative liabilities | 6,025 | 19,583 |
Safeguarding customer crypto liabilities | 114,291,909 | 75,413,188 |
Customer custodial funds excluded from fair value assets | 900,000 | 3,000,000 |
Crypto assets held at cost excluded from fair value assets | 399,400 | 222,800 |
Embedded Derivative Financial Instruments, Crypto Asset Borrowings |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Derivative assets | 5,557 | 2,266 |
Derivative liabilities | 1,292 | 2,310 |
Held in Deposit at Financial Institutions |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash and cash equivalents | 1,300,000 | 2,000,000 |
Held in Deposit at Venues |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash and cash equivalents | 163,500 | 143,200 |
Fair Value, Recurring |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash and cash equivalents | 3,680,337 | 2,250,065 |
Customer custodial funds | 2,541,561 | 2,088,132 |
Crypto assets held | 56,564 | 201,565 |
Derivative assets | 10,455 | 3,838 |
Crypto asset loans receivable | 57,517 | 85,826 |
Safeguarding customer crypto assets | 114,291,909 | 75,413,188 |
Total assets | 120,638,343 | 80,042,614 |
Derivative liabilities | 4,833 | 19,583 |
Contingent consideration arrangement |  | 1,855 |
Safeguarding customer crypto liabilities | 114,291,909 | 75,413,188 |
Total liabilities | 114,296,742 | 75,434,626 |
Fair Value, Recurring | Embedded Derivative Financial Instruments, Crypto Asset Borrowings |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Derivative assets | 9,500 | 300 |
Derivative liabilities | 1,200 | 6,000 |
Level 1 | Fair Value, Recurring |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash and cash equivalents | 3,680,337 | 2,250,065 |
Customer custodial funds | 2,541,561 | 2,088,132 |
Crypto assets held | 56,564 | 201,565 |
Derivative assets | 0 | 0 |
Crypto asset loans receivable | 0 | 0 |
Safeguarding customer crypto assets | 0 | 0 |
Total assets | 6,278,462 | 4,539,762 |
Derivative liabilities | 0 | 0 |
Contingent consideration arrangement |  | 0 |
Safeguarding customer crypto liabilities | 0 | 0 |
Total liabilities | 0 | 0 |
Level 2 | Fair Value, Recurring |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash and cash equivalents | 0 | 0 |
Customer custodial funds | 0 | 0 |
Crypto assets held | 0 | 0 |
Derivative assets | 10,455 | 3,838 |
Crypto asset loans receivable | 57,517 | 85,826 |
Safeguarding customer crypto assets | 114,291,909 | 75,413,188 |
Total assets | 114,359,881 | 75,502,852 |
Derivative liabilities | 4,833 | 19,583 |
Contingent consideration arrangement |  | 0 |
Safeguarding customer crypto liabilities | 114,291,909 | 75,413,188 |
Total liabilities | 114,296,742 | 75,432,771 |
Level 3 | Fair Value, Recurring |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash and cash equivalents | 0 | 0 |
Customer custodial funds | 0 | 0 |
Crypto assets held | 0 | 0 |
Derivative assets | 0 | 0 |
Crypto asset loans receivable | 0 | 0 |
Safeguarding customer crypto assets | 0 | 0 |
Total assets | 0 | 0 |
Derivative liabilities | 0 | 0 |
Contingent consideration arrangement |  | 1,855 |
Safeguarding customer crypto liabilities | 0 | 0 |
Total liabilities | $ 0 | $ 1,855 |

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