v3.26.1
Cover
Jun. 29, 2026
Document Information [Line Items]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jun. 29, 2026
Entity File Number 001-40496
Entity Registrant Name TERRA PROPERTY TRUST, INC.
Entity Central Index Key 0001674356
Entity Tax Identification Number 81-0963486
Entity Incorporation, State or Country Code MD
Entity Address, Address Line One 205 West 28th Street
Entity Address, Address Line Two 12th Floor
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10001
City Area Code 212
Local Phone Number 753-5100
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period true
Notes 6. 00 Percent Due 2026 [Member]  
Document Information [Line Items]  
Title of 12(b) Security 6.00% Notes due 2026
Trading Symbol TPTA
Security Exchange Name NYSE
Secured Notes 7. 00 Percent Due 2029 [Member]  
Document Information [Line Items]  
Title of 12(b) Security 7.00% Secured Notes due 2029
Trading Symbol TPTS
Security Exchange Name NYSE