| Organization (Details) ft² in Millions | Mar. 31, 2025  ft²  state  property  office_property  $ / shares | Dec. 31, 2024  $ / shares | 
|---|---|---|
| Real Estate Properties [Line Items] | ||
| Common stock, par value (in dollars per share) | $ / shares | $ 0.001 | $ 0.001 | 
| Arch Street Joint Venture | ||
| Real Estate Properties [Line Items] | ||
| Number of properties | property | 6 | |
| Area of real estate property (in sqft) | ft² | 1.0 | |
| Number of states with real estate properties owned | state | 6 | |
| Operating Properties | ||
| Real Estate Properties [Line Items] | ||
| Number of properties | office_property | 68 | |
| Area of real estate property (in sqft) | ft² | 7.8 | |
| Number of states with real estate properties owned | state | 29 | |
| Non-Operating Properties | ||
| Real Estate Properties [Line Items] | ||
| Number of properties | property | 8 | 
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- Definition Number Of States With Real Estate Properties Owned No definition available. 
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- Definition Area of a real estate property. No definition available. 
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- Definition Face amount or stated value per share of common stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition The number of real estate properties owned as of the balance sheet date. No definition available. 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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