v3.26.1
Equity - Narrative (Details)
 12 Months Ended
Dec. 15, 2025
$ / shares
shares
Dec. 31, 2025
USD ($)
$ / shares
shares
Dec. 31, 2024
USD ($)
$ / shares
shares
Dec. 31, 2023
shares
Apr. 11, 2022
USD ($)
Apr. 06, 2022
USD ($)
$ / shares
Class of Stock [Line Items]            
Shares issued, price per share (in dollars per share)           $ 0.01
Authorized amount | $           $ 200,000,000
Stock repurchased (in shares) | shares   0 0 0    
Additional acquisition of common stock (in shares) | shares   7,000 3,000 3,000    
Preferred stock, shares authorized (in shares) | shares   55,000,000 55,000,000      
Noncontrolling interest in consolidated entities | $   $ 15,511,000 $ 13,402,000      
Preferred stock, par value (in dollars per shares)   $ 0.01 $ 0.01      
Preferred Share Purchase Right            
Class of Stock [Line Items]            
Dividends declared, number of preferred share purchase rights per outstanding common share (in shares) 1          
Stirling OP            
Class of Stock [Line Items]            
Investment in operating partnership | $   $ 0 $ 374,000      
815 Commerce MM | Manager Of 815 Commerce MM            
Class of Stock [Line Items]            
Noncontrolling interest in consolidated entities | $   $ 15,500,000 $ 13,000,000.0      
8.45% Series D Cumulative Preferred Stock            
Class of Stock [Line Items]            
Preferred stock percentage   8.45%        
Preferred Stock, Series D            
Class of Stock [Line Items]            
Preferred stock, shares outstanding (in shares) | shares   1,111,127 1,111,127      
Redemption price of preferred stock (in dollars per share)   $ 25        
Liquidation preference (in dollars per share)   25.00        
Annual dividend rate per share (in dollars per share)   $ 2.1124        
Increased dividend rate percentage   9.45%        
7.375% Series F Cumulative Preferred Stock            
Class of Stock [Line Items]            
Preferred stock percentage   7.375%        
Preferred Stock, Series F            
Class of Stock [Line Items]            
Preferred stock, shares outstanding (in shares) | shares   1,037,044 1,037,044      
Redemption price of preferred stock (in dollars per share)   $ 25.00        
Liquidation preference (in dollars per share)   25.00        
Annual dividend rate per share (in dollars per share)   $ 1.8436        
Conversion ratio to common stock   0.00969        
7.375% Series G Cumulative Preferred Stock            
Class of Stock [Line Items]            
Preferred stock percentage   7.375%        
Preferred Stock, Series G            
Class of Stock [Line Items]            
Preferred stock, shares outstanding (in shares) | shares   1,470,948 1,470,948      
Redemption price of preferred stock (in dollars per share)   $ 25.00        
Liquidation preference (in dollars per share)   25.00        
Annual dividend rate per share (in dollars per share)   $ 1.8436        
Conversion ratio to common stock   0.00833        
7.50% Series I Cumulative Preferred Stock            
Class of Stock [Line Items]            
Preferred stock percentage   7.50%        
Preferred Stock, Series H            
Class of Stock [Line Items]            
Preferred stock percentage   7.50%        
Preferred stock, shares outstanding (in shares) | shares   1,037,956 1,037,956      
Redemption price of preferred stock (in dollars per share)   $ 25.00        
Liquidation preference (in dollars per share)   25.00        
Annual dividend rate per share (in dollars per share)   $ 1.8750        
Conversion ratio to common stock   0.00825        
Preferred Stock, Series I            
Class of Stock [Line Items]            
Preferred stock percentage   7.50%        
Preferred stock, shares outstanding (in shares) | shares   1,034,303 1,034,303      
Redemption price of preferred stock (in dollars per share)   $ 25.00        
Liquidation preference (in dollars per share)   25.00        
Annual dividend rate per share (in dollars per share)   $ 1.8750        
Conversion ratio to common stock   0.00806        
Series N Preferred Stock            
Class of Stock [Line Items]            
Preferred stock, par value (in dollars per shares) $ 0.01          
Series N Preferred Stock | Preferred Share Purchase Right            
Class of Stock [Line Items]            
Number of securities called by each right (in shares) | shares 0.001          
Purchase price per share (in dollars per share) $ 20,000          
Common Stock            
Class of Stock [Line Items]            
Stock repurchased (in shares) | shares   8,000 3,000 3,000    
At-The-Market Equity Distribution | Common Stock            
Class of Stock [Line Items]            
Commission percentage         1.00%  
Virtu Americas LLC | At-The-Market Equity Distribution            
Class of Stock [Line Items]            
Aggregate offering price | $         $ 100,000,000