XML 17 R1.htm IDEA: XBRL DOCUMENT v3.24.0.1
Cover Page - USD ($)
 12 Months Ended
Dec. 31, 2023
Jan. 31, 2024
Jun. 30, 2023
Cover [Abstract]      
Entity Central Index Key 0000915912    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Amendment Flag false    
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 1-12672    
Entity Registrant Name AVALONBAY COMMUNITIES, INC.    
Entity Incorporation, State or Country Code MD    
Entity Tax Identification Number 77-0404318    
Entity Address, Address Line One 4040 Wilson Blvd., Suite 1000    
Entity Address, City or Town Arlington    
Entity Address, State or Province VA    
Entity Address, Postal Zip Code 22203    
City Area Code 703    
Local Phone Number 329-6300    
Title of 12(b) Security Common Stock, par value $0.01 per share    
Trading Symbol AVB    
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     $ 26,794,136,352
Entity Common Stock, Shares Outstanding   142,025,313  
Documents Incorporated by Reference
Portions of AvalonBay Communities, Inc.'s Proxy Statement for the 2024 annual meeting of stockholders, a definitive copy of which will be filed with the Securities and Exchange Commission within 120 days after the year end of the year covered by this Form 10-K, are incorporated by reference herein as portions of Part III of this Form 10-K.