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Noncontrolling Interests - Holders of Convertible Limited Partnership Units in the Operating Partnership - Additional Information (Detail)
12 Months Ended
Dec. 31, 2024
shares
Dec. 31, 2023
shares
Dec. 31, 2022
shares
Leasehold Interest Contributed In Contribution Agreement      
Noncontrolling Interest [Line Items]      
Stock issued during period, shares, acquisitions 469,740    
Noncontrolling interests      
Noncontrolling Interest [Line Items]      
Limited partnership units (in shares) 10,011,903    
Limited partnership units, conversion ratio 1    
Outstanding stock percent that should be acquired for rights to be exercised 39.90%    
Limited partnership units convertible to shares of common stock, eligible for conversion 600,000    
Fully converted partnership units and diluted weighted average shares outstanding 34,500,000 34,100,000 34,000,000.0
Partners capital account units placed In escrow (in shares) 708,035    
Saul Holdings Limited Partnership      
Noncontrolling Interest [Line Items]      
Percentage of ownership in operating partnership 69.60%    
Saul Holdings Limited Partnership | Noncontrolling interests      
Noncontrolling Interest [Line Items]      
Percentage of ownership interest of noncontrolling interest 29.00%    
Limited partnership units, conversion ratio 1    
Third Party Investor      
Noncontrolling Interest [Line Items]      
Percentage of ownership interest of noncontrolling interest 1.40%