Annual report pursuant to Section 13 and 15(d)

Cover

v3.22.0.1
Cover - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Mar. 11, 2022
Jun. 30, 2021
Document Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2021    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Entity Registrant Name FINANCE OF AMERICA COMPANIES INC.    
Entity Central Index Key 0001828937    
Current Fiscal Year End Date --12-31    
Entity Current Reporting Status Yes    
Entity Filer Category Accelerated Filer    
Entity Common Stock, Shares Outstanding   60,815,569  
Entity Interactive Data Current Yes    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity File Number 001-40308    
Entity Incorporation, State or Country Code DE    
Entity Well-known Seasoned Issuer No    
Entity Tax Identification Number 85-3474065    
Entity Voluntary Filers No    
Document Annual Report true    
Document Transition Report false    
Entity Address, Address Line One 909 Lake Carolyn Parkway    
Entity Address, Address Line Two Suite 1550    
Entity Address, City or Town Irving    
Entity Address, State or Province TX    
Entity Address, Postal Zip Code 75039    
City Area Code 877    
Local Phone Number 202-2666    
ICFR Auditor Attestation Flag false    
Entity Public Float     $ 254.8
Auditor Name BDO USA, LLP    
Auditor Firm ID 243    
Auditor Location Philadelphia, PA    
Class A common stock      
Document Information [Line Items]      
Title of 12(b) Security Class A common stock, par value $0.0001 per share    
Trading Symbol FOA    
Security Exchange Name NYSE    
Warrant      
Document Information [Line Items]      
Title of 12(b) Security Warrants to purchase shares of Class A Common Stock    
Trading Symbol FOA.WS    
Security Exchange Name NYSE