COLLATERALIZED ARRANGEMENTS AND FINANCING - Crypto Borrowings (Details) $ in Thousands	Jun. 30, 2026 USD ($) unit	Dec. 31, 2025 USD ($) unit
Crypto Asset, Holding [Line Items]
Total short-term borrowings	$ 539,195	$ 452,105
Crypto Asset Holdings
Crypto Asset, Holding [Line Items]
Cost Basis	344,615	363,705
Fair Value	264,282	332,182
Total short-term borrowings	539,195	452,105
Payment stablecoins \| Crypto Asset Holdings
Crypto Asset, Holding [Line Items]
Fair Value	$ 274,913	$ 119,923
Bitcoin \| Crypto Asset Holdings
Crypto Asset, Holding [Line Items]
Units \| unit	2,176	2,035
Cost Basis	$ 172,425	$ 183,882
Fair Value	$ 127,323	$ 178,022
Ethereum \| Crypto Asset Holdings
Crypto Asset, Holding [Line Items]
Units \| unit	69,848	43,941
Cost Basis	$ 136,551	$ 150,424
Fair Value	109,623	130,363
Other crypto assets \| Crypto Asset Holdings
Crypto Asset, Holding [Line Items]
Cost Basis	35,639	29,399
Fair Value	$ 27,336	$ 23,797

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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