XML 13 R1.htm IDEA: XBRL DOCUMENT v3.22.1
Document and Entity Information - USD ($)
shares in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2021
Mar. 22, 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 Strategic Student & Senior Housing Trust, Inc.    
Entity Central Index Key 0001698538    
Current Fiscal Year End Date --12-31    
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 Emerging Growth Company true    
Entity Small Business true    
Entity Ex Transition Period true    
ICFR Auditor Attestation Flag false    
Entity Shell Company false    
Entity Public Float     $ 122
Entity File Number 333-220646    
Entity Incorporation, State or Country Code MD    
Entity Tax Identification Number 81-4112948    
Entity Address, Address Line One 10 Terrace Road    
Entity Address, City or Town Ladera Ranch    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 92694    
City Area Code 877    
Local Phone Number 327-3485    
Document Annual Report true    
Document Transition Report false    
Documents Incorporated by Reference

Documents Incorporated by Reference:

None.

    
Auditor Name BDO USA, LLP    
Auditor Location Costa Mesa, California    
Auditor Firm ID 243    
Class A Common Stock [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   11.6  
Class T Common Stock [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   0.1  
Class W Common Stock [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   0.1  
Class Y Common Stock [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   1.1  
Class Z Common Stock [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   0.2