XML 97 R1.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Cover - USD ($)
 12 Months Ended
Dec. 31, 2019
Feb. 21, 2020
Jun. 30, 2019
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2019    
Document Transition Report false    
Entity File Number 001-32265    
Entity Registrant Name AMERICAN CAMPUS COMMUNITIES, INC.    
Entity Incorporation, State or Country Code MD    
Entity Tax Identification Number 76-0753089    
Entity Address, Address Line One 12700 Hill Country Blvd.,    
Entity Address, Address Line Two Suite T-200    
Entity Address, Postal Zip Code 78738    
Entity Address, City or Town Austin,    
Entity Address, State or Province TX    
City Area Code 512    
Local Phone Number 732-1000    
Title of 12(b) Security Common Stock, par value $.01 per share    
Trading Symbol ACC    
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    
Entity Shell Company false    
Entity Public Float     $ 4,729,996,649
Entity Common Stock Shares Outstanding (in shares)   137,404,752  
Documents Incorporated by Reference
Part III of this report incorporates information by reference from the definitive Proxy Statement for the 2020 Annual Meeting of Stockholders.
    
Entity Central Index Key 0001283630    
Current Fiscal Year End Date --12-31    
Amendment Flag false    
Document Fiscal Year Focus 2019    
Document Fiscal Period Focus FY    
AMERICAN CAMPUS COMMUNITIES OPERATING PARTNERSHIP LP      
Document Information [Line Items]      
Entity File Number 333-181102-01    
Entity Registrant Name AMERICAN CAMPUS COMMUNITIES OPERATING PARTNERSHIP LP    
Entity Incorporation, State or Country Code MD    
Entity Tax Identification Number 56-2473181    
Entity Well-Known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Central Index Key 0001357369    
Current Fiscal Year End Date --12-31