v3.25.3
Cover
Nov. 04, 2025
Document Information [Line Items]  
Document Type 8-K
Document Period End Date Nov. 04, 2025
Entity Registrant Name AG Mortgage Investment Trust, Inc.
Entity Incorporation, State or Country Code MD
Entity File Number 001-35151
Entity Tax Identification Number 27-5254382
Entity Address, Address Line One 245 Park Avenue
Entity Address, Address Line Two 26th floor
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10167
City Area Code 212
Local Phone Number 692-2000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Amendment Flag false
Entity Central Index Key 0001514281
Common Stock  
Document Information [Line Items]  
Title of 12(b) Security Common Stock, $0.01 par value per share
Trading Symbol MITT
Security Exchange Name NYSE
Series Cumulative Reedmable Preferred Stock  
Document Information [Line Items]  
Title of 12(b) Security 8.25% Series A Cumulative Redeemable Preferred Stock
Trading Symbol MITT PrA
Security Exchange Name NYSE
Series B Cumulative Reedmable Preferred Stock  
Document Information [Line Items]  
Title of 12(b) Security 8.00% Series B Cumulative Redeemable Preferred Stock
Trading Symbol MITT PrB
Security Exchange Name NYSE
Series C Fixed to Floating Rate Cumulative Redeemable Preferred  
Document Information [Line Items]  
Title of 12(b) Security 8.000% Series C Fixed-to-Floating Rate Cumulative Redeemable Preferred Stock
Trading Symbol MITT PrC
Security Exchange Name NYSE
Senior Notes Due February 2029  
Document Information [Line Items]  
Title of 12(b) Security 9.500% Senior Notes due 2029
Trading Symbol MITN
Security Exchange Name NYSE
Senior Notes Due May 2029  
Document Information [Line Items]  
Title of 12(b) Security 9.500% Senior Notes due 2029
Trading Symbol MITP
Security Exchange Name NYSE