FAIR VALUE MEASUREMENT - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Mar. 31, 2026	Dec. 31, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024
Assets:
Digital assets	$ 1,542,657		$ 3,371,636
Digital assets - receivable, net	540,868		1,336,868
Derivative instrument	6,505	$ 8,274	49,319	$ 56,086	$ 35,775	$ 8,947
Liabilities:
Contingent consideration liability	25,267		13,758			$ 8,138
Money market accounts
Assets:
Cash and cash equivalents, fair value	159,703		20,549
U.S. government bills and securities
Assets:
Cash and cash equivalents, fair value	146,137		381,927
Quoted prices in active markets (Level 1)
Assets:
Digital assets	1,542,657		3,371,636
Digital assets - receivable, net	0		0
Derivative instrument	0		0
Liabilities:
Contingent consideration liability	0		0
Quoted prices in active markets (Level 1) \| Money market accounts
Assets:
Cash and cash equivalents, fair value	159,703		20,549
Quoted prices in active markets (Level 1) \| U.S. government bills and securities
Assets:
Cash and cash equivalents, fair value	146,137		381,927
Significant other observable inputs (Level 2)
Assets:
Digital assets	0		0
Digital assets - receivable, net	540,868		1,336,868
Derivative instrument	6,505		49,319
Liabilities:
Contingent consideration liability	0		0
Significant other observable inputs (Level 2) \| Money market accounts
Assets:
Cash and cash equivalents, fair value	0		0
Significant other observable inputs (Level 2) \| U.S. government bills and securities
Assets:
Cash and cash equivalents, fair value	0		0
Significant unobservable inputs (Level 3)
Assets:
Digital assets	0		0
Digital assets - receivable, net	0		0
Derivative instrument	0		0
Liabilities:
Contingent consideration liability	25,267		13,758
Significant unobservable inputs (Level 3) \| Money market accounts
Assets:
Cash and cash equivalents, fair value	0		0
Significant unobservable inputs (Level 3) \| U.S. government bills and securities
Assets:
Cash and cash equivalents, fair value	$ 0		$ 0