SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Deferred Revenue (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
Deferred Revenue From Colocation Services
Beginning balance	$ 17,785
Revenue recognized that was included in the deferred revenue balance as of the beginning of the year	(4,867)
Additional customer funding received	328,663
Ending balance	341,581
Deferred Revenue From Hosted Mining Services
Beginning balance	349
Revenue recognized that was included in the deferred revenue balance as of the beginning of the year	(330)
Additional customer funding received	2,487
Ending balance	2,506
Total Deferred Revenue
Beginning balance	18,134
Revenue recognized that was included in the deferred revenue balance as of the beginning of the year	(5,197)
Additional customer funding received	331,150
Ending balance	344,087
Current portion of deferred revenue	83,739
Non-current portion of deferred revenue	$ 260,348	$ 0