DEBT - Schedule of Maturities of Long-Term Debt (Details) $ in Thousands	Sep. 30, 2025 USD ($)
Year ending December 31:
Remainder of 2025	$ 0
2026	0
2027	0
2028	0
2029	0
Thereafter	1,500,000
Total principal maturities	$ 1,500,000

Convertible Debt, Maturity, Remainder Of Fiscal Year

No definition available.

Name:	wulf_ConvertibleDebtMaturityRemainderOfFiscalYear
Namespace Prefix:	wulf_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant