v3.25.4
Cover
Feb. 11, 2026
Cover [Abstract]  
Document Type 8-K
Registrant Name Franklin BSP Realty Trust, Inc.
Entity Address, Address Line One 1 Madison Ave
Entity Address, City or Town New York
Entity Address, State or Province NY
City Area Code 212
Local Phone Number 588-6770
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Document Information [Line Items]  
Entity Tax Identification Number 46-1406086
City Area Code 212
Entity Information [Line Items]  
Entity Emerging Growth Company false
Central Index Key 0001562528
Amendment Flag false
Entity Incorporation, State or Country Code MD
Entity File Number 001-40923
Document Period End Date Feb. 11, 2026
Entity Address, Postal Zip Code 10010
Common Stock  
Cover [Abstract]  
Title of 12(b) Security Common Stock, par value $0.01 per share
Security Exchange Name NYSE
Document Information [Line Items]  
Security Exchange Name NYSE
Title of 12(b) Security Common Stock, par value $0.01 per share
Trading Symbol FBRT
Entity Information [Line Items]  
Title of 12(b) Security Common Stock, par value $0.01 per share
Trading Symbol FBRT
Trading Symbol FBRT
Series E Preferred Stock  
Cover [Abstract]  
Title of 12(b) Security 7.50% Series E Cumulative Redeemable Preferred Stock, par value $0.01 per share
Security Exchange Name NYSE
Document Information [Line Items]  
Security Exchange Name NYSE
Title of 12(b) Security 7.50% Series E Cumulative Redeemable Preferred Stock, par value $0.01 per share
Trading Symbol FBRT PRE
Entity Information [Line Items]  
Title of 12(b) Security 7.50% Series E Cumulative Redeemable Preferred Stock, par value $0.01 per share
Trading Symbol FBRT PRE
Trading Symbol FBRT PRE