COMMON STOCK (Details) $ / shares in Units, $ in Thousands		1 Months Ended		2 Months Ended	9 Months Ended
	Dec. 13, 2021 $ / shares shares	Dec. 31, 2021 USD ($) item $ / shares shares	Mar. 31, 2021 USD ($) $ / shares shares	Mar. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) item $ / shares shares
COMMON STOCK
Authorized shares		225,000,000			225,000,000
Common stock shares authorized		200,000,000	100,000,000	100,000,000	200,000,000
Common stock par value | $ / shares		$ 0.001	$ 0.001	$ 0.001	$ 0.001
Common stock number of votes | item		1			1
Preferred stock authorized		25,000,000	20,000,000	20,000,000	25,000,000
Preferred stock par value | $ / shares		$ 0.001	$ 0.001	$ 0.001	$ 0.001
Issuance of stock, net of issuance costs | $				$ 29,942	$ 74,376
Proceeds from issuance of common stock, net of issuance costs | $				$ 30,000	$ 74,376
Common stock shares outstanding		99,976,253	50,000,000	50,000,000	99,976,253
Dividends declared (in dollar per share) | $ / shares					$ 0
TeraCub
COMMON STOCK
Authorized shares	1,000
Common stock shares authorized	100,000,000
Common stock par value | $ / shares	$ 0.001
Preferred stock authorized	20,000,000
Preferred stock par value | $ / shares	$ 0.001
Price per share (in dollar per share) | $ / shares	$ 0.001
TeraClub shares converted to TeraWulf shares.	97,976,728
TeraWulf shares issued converting TereClub shares	99,976,253
Common stock shares outstanding	54,840,641
Dividends declared (in dollar per share) | $ / shares					$ 0
TeraCub | Company's founders
COMMON STOCK
Issuance of stock, net of issuance costs (in shares)					44,000,000
Term Loan | TeraCub
COMMON STOCK
Issuance of stock, net of issuance costs (in shares)		839,398
Private Placement | TeraCub
COMMON STOCK
Issuance of stock, net of issuance costs (in shares)		2,261,932	6,000,000
Price per share (in dollar per share) | $ / shares		$ 33.82	$ 5.00	$ 5.00	$ 33.82
Issuance of stock, net of issuance costs | $			$ 30,000
Percentage of shares sold to outstanding shares			12.00%
Proceeds from issuance of common stock, net of issuance costs | $		$ 76,500
Series A Preferred Stock
COMMON STOCK
Preferred stock authorized		0			0
Series A Preferred Stock | TeraCub
COMMON STOCK
Preferred stock authorized	2,000,000