v3.26.1
Cover - shares
 6 Months Ended
Jun. 30, 2026
Jul. 31, 2026
Entity Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2026  
Document Transition Report false  
Entity File Number 001-34385  
Entity Registrant Name Invesco Mortgage Capital Inc.  
Entity Incorporation, State or Country Code MD  
Entity Tax Identification Number 26-2749336  
Entity Address, Address Line One 1331 Spring Street, N.W.,  
Entity Address, Address Line Two Suite 2500,  
Entity Address, City or Town Atlanta,  
Entity Address, State or Province GA  
Entity Address, Postal Zip Code 30309  
City Area Code 404  
Local Phone Number 892-0896  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding (in shares)   107,640,417
Entity Central Index Key 0001437071  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus (Q1,Q2,Q3,FY) Q2  
Amendment Flag false  
Common Stock    
Entity Information [Line Items]    
Title of 12(b) Security Common Stock, par value $0.01 per share  
Trading Symbol IVR  
Security Exchange Name NYSE  
7.50% Fixed-to-Floating Series C Cumulative Redeemable Preferred Stock    
Entity Information [Line Items]    
Title of 12(b) Security 7.50% Fixed-to-Floating Series C Cumulative Redeemable Preferred Stock  
Trading Symbol IVR PrC  
Security Exchange Name NYSE