XML 67 R1.htm IDEA: XBRL DOCUMENT v3.22.0.1
Document and Entity Information - USD ($)
$ in Billions
 12 Months Ended
Dec. 31, 2021
Feb. 28, 2022
Jun. 30, 2021
Document Information [Line Items]      
Entity Registrant Name Apartment Investment and Management Company    
Entity Central Index Key 0000922864    
Document Type 10-K    
Document Period End Date Dec. 31, 2021    
Amendment Flag false    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Current Fiscal Year End Date --12-31    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Emerging Growth Company false    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Small Business false    
Entity Shell Company false    
Trading Symbol AIV    
Entity File Number 1-13232    
Entity Tax Identification Number 84-1259577    
Entity Address, State or Province MD    
Entity Address, Address Line One 4582 South Ulster Street    
Entity Address, Address Line Two Suite 1450    
Entity Address, City or Town Denver    
Entity Address, State or Province CO    
Entity Address, Postal Zip Code 80237    
City Area Code 303    
Local Phone Number 224-7900    
Entity Common Stock, Shares Outstanding   152,556,271  
Title of 12(b) Security Class A Common Stock (Apartment Investment and Management Company)    
Security Exchange Name NYSE    
Document Annual Report true    
Document Transition Report false    
ICFR Auditor Attestation Flag false    
Documents Incorporated by Reference

Documents Incorporated by Reference

    
Entity Public Float     $ 1.0
Auditor Firm ID 42    
Auditor Name Ernst & Young LLP    
Auditor Location Denver, Colorado    
Aimco OP L.P. [Member]      
Document Information [Line Items]      
Entity Registrant Name Aimco OP L.P.    
Entity Central Index Key 0000926660    
Document Type 10-K    
Document Period End Date Dec. 31, 2021    
Amendment Flag false    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Current Fiscal Year End Date --12-31    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Emerging Growth Company true    
Entity Ex Transition Period true    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Small Business false    
Entity Shell Company false    
Entity File Number 0-56223    
Entity Tax Identification Number 85-2460835    
Entity Address, State or Province DE    
Entity Address, Address Line One 4582 South Ulster Street    
Entity Address, Address Line Two Suite 1450    
Entity Address, City or Town Denver    
Entity Address, State or Province CO    
Entity Address, Postal Zip Code 80237    
City Area Code 303    
Local Phone Number 224-7900    
ICFR Auditor Attestation Flag true    
Auditor Firm ID 42    
Auditor Name Ernst & Young LLP    
Auditor Location Denver, Colorado