v3.25.4
Document And Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2025
Feb. 13, 2026
Jun. 30, 2025
Document Information [Line Items]      
Entity Central Index Key 0001466085    
Entity Registrant Name INDEPENDENCE REALTY TRUST, INC.    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2025    
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2025    
Document Transition Report false    
Entity File Number 001-36041    
Entity Incorporation, State or Country Code MD    
Entity Tax Identification Number 26-4567130    
Entity Address, Address Line One 1835 Market Street, Suite 2601    
Entity Address, City or Town Philadelphia    
Entity Address, State or Province PA    
Entity Address, Postal Zip Code 19103    
City Area Code 267    
Local Phone Number 270-4800    
Title of 12(b) Security Common Stock, par value $0.01 per share    
Trading Symbol IRT    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 4,214,951,514
Entity Common Stock, Shares Outstanding   237,280,268  
Auditor Name KPMG LLP    
Auditor Location Philadelphia, Pennsylvania    
Auditor Firm ID 185