v3.26.3
Debt - Summary of Borrowings (Parenthetical) (Detail)
9 Months Ended
Jul. 14, 2026
USD ($)
Sep. 30, 2026
USD ($)
Swap
Sep. 30, 2025
USD ($)
Jun. 25, 2026
USD ($)
Dec. 31, 2025
USD ($)
Mar. 24, 2025
Swap
Debt Instrument [Line Items]            
Revolving credit facility   $ 16,050,000     $ 199,050,000  
Mortgage note obligation   9,403,000 $ 3,421,000      
USFS II Albuquerque [Member]            
Debt Instrument [Line Items]            
Mortgage note obligation $ 6,400,000          
Interest Rate Swaps [Member]            
Debt Instrument [Line Items]            
Aggregate notional value of interest rate swaps   200,000,000.0        
2016 Term Loan Facility [Member]            
Debt Instrument [Line Items]            
Loan, Principal Outstanding   $ 100,000,000        
Line of Credit Facility, Description   2016 term loan facility has two one-year as-of-right extension options subject to certain conditions and the payment of an extension fee        
2016 Term Loan Facility [Member] | Interest Rate Swaps [Member]            
Debt Instrument [Line Items]            
Number of forward interest rate swaps | Swap   3        
Forward swaps effective date   Dec. 23, 2024        
Aggregate notional value of interest rate swaps   $ 100,000,000.0        
Forward swaps interest rate   5.21%        
2018 Term Loan Facility [Member]            
Debt Instrument [Line Items]            
Loan, Principal Outstanding   $ 200,000,000        
Line of Credit Facility, Description   2018 term loan facility has two one-year as-of-right extension options subject to certain conditions and the payment of an extension fee.        
2018 Term Loan Facility [Member] | Interest Rate Swaps [Member]            
Debt Instrument [Line Items]            
Number of forward interest rate swaps | Swap   3        
Forward swaps interest rate   4.99%        
2018 Term Loan Facility [Member] | Interest Rate Swap Effective June 30, 2025 [Member]            
Debt Instrument [Line Items]            
Number of forward interest rate swaps | Swap   2        
2018 Term Loan Facility [Member] | Interest Rate Swap Effective March 24, 2025 [Member]            
Debt Instrument [Line Items]            
Number of forward interest rate swaps | Swap           1
2018 Term Loan Facility [Member] | Interest Rate Swap1 [Member]            
Debt Instrument [Line Items]            
Forward swaps effective date   Mar. 24, 2025        
2018 Term Loan Facility [Member] | Interest Rate Swap2 [Member]            
Debt Instrument [Line Items]            
Forward swaps effective date   Jun. 30, 2025        
2026 Term Loan Facility [Member]            
Debt Instrument [Line Items]            
Loan, Principal Outstanding   $ 200,000,000   $ 200,000,000    
2025 Series B Senior Notes [Member] | Treasury Lock [Member] | Cash Flow Hedging [Member]            
Debt Instrument [Line Items]            
Aggregate notional value of interest rate swaps   50,000,000        
2024 Revolving Credit Facility [Member]            
Debt Instrument [Line Items]            
Revolving credit facility [1]   16,050,000        
Amount available under revolving credit facility   383,800,000        
Credit facility additional maximum borrowing capacity   $ 300,000,000.0        
Line of Credit Facility, Description   2024 revolving credit facility has two six-month as-of-right extension options subject to certain conditions and the payment of an extension fee        
Revolving Credit Facility [Member]            
Debt Instrument [Line Items]            
Revolving credit facility   $ 16,050,000        
Senior Unsecured Notes [Member] | 2024 Revolving Credit Facility [Member]            
Debt Instrument [Line Items]            
Loan, Principal Outstanding   400,000,000        
Mortgage Notes Payable [Member]            
Debt Instrument [Line Items]            
Loan, Principal Outstanding   142,297,000        
Mortgage Notes Payable [Member] | CBP Savannah [Member]            
Debt Instrument [Line Items]            
Loan, Principal Outstanding   $ 7,100,000        
Effective interest rate   4.12%        
Mortgage Notes Payable [Member] | ICE Charleston [Member]            
Debt Instrument [Line Items]            
Loan, Principal Outstanding   $ 7,697,000        
Effective interest rate   3.93%        
Mortgage Notes Payable [Member] | VA Loma Linda [Member]            
Debt Instrument [Line Items]            
Loan, Principal Outstanding   $ 127,500,000        
Effective interest rate   3.78%        
Mortgage Notes Payable [Member] | 2016 Term Loan Facility [Member]            
Debt Instrument [Line Items]            
Effective interest rate   5.49%        
Mortgage Notes Payable [Member] | 2018 Term Loan Facility [Member]            
Debt Instrument [Line Items]            
Effective interest rate   5.43%        
Mortgage Notes Payable [Member] | 2026 Term Loan Facility [Member]            
Debt Instrument [Line Items]            
Effective interest rate   5.11%        
Mortgage Notes Payable [Member] | 2017 series A senior notes [Member]            
Debt Instrument [Line Items]            
Effective interest rate   4.15%        
Mortgage Notes Payable [Member] | 2017 series B senior notes [Member]            
Debt Instrument [Line Items]            
Effective interest rate   4.23%        
Mortgage Notes Payable [Member] | 2017 series C senior notes [Member]            
Debt Instrument [Line Items]            
Effective interest rate   4.37%        
Mortgage Notes Payable [Member] | 2019 series A senior notes [Member]            
Debt Instrument [Line Items]            
Effective interest rate   3.82%        
Mortgage Notes Payable [Member] | 2019 series B senior notes [Member]            
Debt Instrument [Line Items]            
Effective interest rate   3.91%        
Mortgage Notes Payable [Member] | 2019 series C senior notes [Member]            
Debt Instrument [Line Items]            
Effective interest rate   4.04%        
Mortgage Notes Payable [Member] | 2021 Series A Senior Notes [Member]            
Debt Instrument [Line Items]            
Effective interest rate   2.74%        
Mortgage Notes Payable [Member] | 2021 Series B Senior Notes [Member]            
Debt Instrument [Line Items]            
Effective interest rate   2.99%        
Mortgage Notes Payable [Member] | 2024 Series A Senior Notes [Member]            
Debt Instrument [Line Items]            
Effective interest rate   6.74%        
Mortgage Notes Payable [Member] | 2024 Series B Senior Notes [Member]            
Debt Instrument [Line Items]            
Effective interest rate   6.73%        
Mortgage Notes Payable [Member] | 2025 Series A Senior Notes [Member]            
Debt Instrument [Line Items]            
Effective interest rate   6.36%        
Mortgage Notes Payable [Member] | 2025 Series B Senior Notes [Member]            
Debt Instrument [Line Items]            
Effective interest rate   6.51%        
SOFR [Member]            
Debt Instrument [Line Items]            
Effective interest rate   3.87%        
SOFR [Member] | 2026 Term Loan Facility [Member]            
Debt Instrument [Line Items]            
Effective interest rate   1.00%        
[1] Our $400.0 million senior unsecured 2024 revolving credit facility had available capacity of $383.8 million at September 30, 2026, in addition to an accordion feature that provides us with additional capacity of up to $300.0 million, subject to syndication of the increase and the satisfaction of customary terms and conditions.