XML 12 R1.htm IDEA: XBRL DOCUMENT v3.24.3
Cover - shares
 9 Months Ended
Sep. 30, 2024
Oct. 30, 2024
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2024  
Document Transition Report false  
Entity File Number 001-36844  
Entity Registrant Name GREAT AJAX CORP.  
Entity Incorporation, State or Country Code MD  
Entity Tax Identification Number 46-5211870  
Entity Address, Address Line One 799 Broadway  
Entity Address, City or Town New York  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 10003  
City Area Code 212  
Local Phone Number 850-7770  
Title of 12(b) Security Common stock, par value $0.01 per share  
Trading Symbol AJX  
Security Exchange Name NYSE  
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   45,420,752
Entity Central Index Key 0001614806  
Current Fiscal Year End Date --12-31  
Amendment Flag false  
Document Fiscal Year Focus 2024  
Document Fiscal Period Focus Q3