v3.25.2
Cover
Jun. 12, 2025
Document Information [Line Items]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jun. 12, 2025
Entity File Number 001-35845
Entity Registrant Name LUMENT FINANCE TRUST, INC.
Entity Central Index Key 0001547546
Entity Tax Identification Number 45-4966519
Entity Incorporation, State or Country Code MD
Entity Address, Address Line One 230 Park Avenue
Entity Address, Address Line Two  20th Floor
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10169
City Area Code 212
Local Phone Number 317-5700
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Common Stock [Member]  
Document Information [Line Items]  
Title of 12(b) Security Common Stock, $0.01 par value per share
Trading Symbol LFT
Security Exchange Name NYSE
Redeemable Preferred Stock [Member]  
Document Information [Line Items]  
Title of 12(b) Security 7.875% Series A Cumulative Redeemable Preferred Stock, $0.01 par value per share
Trading Symbol LFTPrA
Security Exchange Name NYSE