XML 45 R1.htm IDEA: XBRL DOCUMENT v3.19.3
Document and Entity Information - shares
 9 Months Ended
Sep. 30, 2019
Oct. 28, 2019
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q3  
Trading Symbol IRT  
Entity Registrant Name INDEPENDENCE REALTY TRUST, INC.  
Entity Central Index Key 0001466085  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Common Stock, Shares Outstanding   90,894,656
Entity Current Reporting Status Yes  
Entity Shell Company false  
Entity File Number 001-36041  
Entity Tax Identification Number 26-4567130  
Entity Address, Address Line One 1835 Market Street  
Entity Address, Address Line Two 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  
Entity Interactive Data Current Yes  
Title of 12(b) Security Common stock  
Security Exchange Name NYSE  
Entity Incorporation, State or Country Code MD  
Document Quarterly Report true  
Document Transition Report false