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Organization and Description of Business - Narrative (Details) | Jun. 30, 2025 property state territory $ / shares shares | Dec. 31, 2024 $ / shares shares | May 17, 2019 $ / shares | May 15, 2019 $ / shares shares
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Organization and Description of Business (Details) [Line Items] |  |  |  |
Percentage of interest in operating partnership | 77.30% |  |  |
Class A common stock |  |  |  |
Organization and Description of Business (Details) [Line Items] |  |  |  |
Common stock, par value (in dollars per share) | $ / shares | $ 0.01 | $ 0.01 |  |
Common stock, shares authorized (in shares) | 500,000,000 | 500,000,000 |  |
Common stock, shares issued (in shares) | 24,237,197 | 23,494,487 |  |
Class B common stock |  |  |  |
Organization and Description of Business (Details) [Line Items] |  |  |  |
Common stock, par value (in dollars per share) | $ / shares | $ 0.01 | $ 0.01 |  |
Common stock, shares authorized (in shares) | 27,206 | 27,206 |  |
Common stock, shares issued (in shares) | 27,206 | 27,206 |  |
USPS |  |  |  |
Organization and Description of Business (Details) [Line Items] |  |  |  |
Number of postal properties (in properties) | property | 1,806 |  |  |
Number of states (in states) | state | 49 |  |  |
Number of territories (in territories) | territory | 1 |  |  |
PRM |  |  |  |
Organization and Description of Business (Details) [Line Items] |  |  |  |
Number of postal properties (in properties) | property | 358 |  |  |
IPO |  |  |  |
Organization and Description of Business (Details) [Line Items] |  |  |  |
Common stock, par value (in dollars per share) | $ / shares |  |  | $ 0.01 | $ 0.01
Preferred stock, shares authorized (in shares) |  |  |  | 100,000,000
IPO | Class A common stock |  |  |  |
Organization and Description of Business (Details) [Line Items] |  |  |  |
Common stock, shares authorized (in shares) |  |  |  | 500,000,000
IPO | Class B common stock |  |  |  |
Organization and Description of Business (Details) [Line Items] |  |  |  |
Common stock, shares issued (in shares) |  |  |  | 27,206

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