v3.26.1
Concentration (Details)
3 Months Ended
Mar. 31, 2026
property
state
Mar. 31, 2025
Concentration    
Number of states in which acquired properties located | state 29  
Continuing operations    
Concentration    
Number of properties | property 122  
Annualized rental income, excluding properties classified as discontinued operations | Tenant concentration | U.S. Government, State Governments and Four Other Governments    
Concentration    
Concentration risk percentage 26.10% 25.10%
Annualized rental income, excluding properties classified as discontinued operations | Tenant concentration | U.S. Government    
Concentration    
Concentration risk percentage 17.50% 16.80%
Annualized rental income, excluding properties classified as discontinued operations | Geographic concentration | Virginia    
Concentration    
Concentration risk percentage 14.30%  
Annualized rental income, excluding properties classified as discontinued operations | Geographic concentration | California    
Concentration    
Concentration risk percentage 11.40%  
Annualized rental income, excluding properties classified as discontinued operations | Geographic concentration | Illinois    
Concentration    
Concentration risk percentage 10.80%  
Annualized rental income, excluding properties classified as discontinued operations | Geographic concentration | Georgia    
Concentration    
Concentration risk percentage 10.40%  
Annualized rental income, excluding properties classified as discontinued operations | Geographic concentration | Texas    
Concentration    
Concentration risk percentage 10.20%