Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2023	Nov. 10, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity File Number	001-41163
Entity Registrant Name	TERAWULF INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	87-1909475
Entity Address, Address Line One	9 Federal Street
Entity Address, Postal Zip Code	21601
Entity Address, City or Town	Easton
Entity Address, State or Province	MD
City Area Code	410
Local Phone Number	770-9500
Title of 12(b) Security	Common Stock, $0.001 par value per share
Trading Symbol	WULF
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		238,203,308
Entity Central Index Key	0001083301
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Amendment Flag	false