v3.25.4
Cover
Mar. 04, 2026
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Mar. 04, 2026
Entity File Number 001-41711
Entity Registrant Name USA Rare Earth, Inc.
Entity Central Index Key 0001970622
Entity Tax Identification Number 98-1720278
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 100 W Airport Road
Entity Address, City or Town Stillwater
Entity Address, State or Province OK
Entity Address, Postal Zip Code 74075
City Area Code 813
Local Phone Number 867-6155
Written Communications true
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common stock, par value $0.0001 per share
Trading Symbol USAR
Security Exchange Name NASDAQ
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period false