v3.26.1
Debt - Summary of Borrowings (Parenthetical) (Detail)
6 Months Ended
Jul. 14, 2026
USD ($)
Jun. 30, 2026
USD ($)
Swap
Jun. 30, 2025
USD ($)
Jun. 25, 2026
USD ($)
Mar. 31, 2026
Swap
Dec. 31, 2025
USD ($)
Mar. 24, 2025
Swap
Debt Instrument [Line Items]              
Revolving credit facility   $ 43,050,000       $ 199,050,000  
Mortgage note obligation   2,393,000 $ 2,265,000        
USFS II Albuquerque [Member]              
Debt Instrument [Line Items]              
Mortgage note obligation $ 6,400,000            
Subsequent Event [Member] | 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     3    
Forward swaps interest rate   5.09%          
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]   43,050,000          
Amount available under revolving credit facility   356,800,000          
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   $ 43,050,000          
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   149,308,000          
Mortgage Notes Payable [Member] | CBP Savannah [Member]              
Debt Instrument [Line Items]              
Loan, Principal Outstanding   $ 7,331,000          
Effective interest rate   4.12%          
Mortgage Notes Payable [Member] | ICE Charleston [Member]              
Debt Instrument [Line Items]              
Loan, Principal Outstanding   $ 8,109,000          
Effective interest rate   3.93%          
Mortgage Notes Payable [Member] | USFS II Albuquerque [Member]              
Debt Instrument [Line Items]              
Loan, Principal Outstanding   $ 6,368,000          
Effective interest rate   3.92%          
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   5.53%          
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   3.62%          
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 $356.8 million at June 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.