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Revenue - Summary of Revenue from Tenant Construction Projects Disaggregated by Tenant Agency (Detail) - ASU 2014-09 [Member] - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025
Disaggregation Of Revenue [Line Items] |  |  |  |
Tenant Construction Project Income | $ 422 | $ 2,107 | $ 1,273 | $ 3,286
Food And Drug Administration ("FDA") [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Tenant Construction Project Income | 59 | 7 | 530 | 62
Department of Veteran Affairs ("VA") [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Tenant Construction Project Income | 174 | 1,045 | 426 | 1,191
U.S Joint Staff Command ("JSC") [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Tenant Construction Project Income | 102 | 91 | 170 | 405
Internal Revenue Service ("IRS") [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Tenant Construction Project Income | 0 | 14 | 31 | 64
Federal Bureau of Investigation ("FBI") [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Tenant Construction Project Income | 73 | 586 | 98 | 793
Department of Treasury ("TREAS") [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Tenant Construction Project Income | 0 | 25 | 2 | 25
The Judiciary of the U.S. Government ("JUD") [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Tenant Construction Project Income | 0 | 0 | 1 | 38
U.S. Citizenship and Immigration Services ("USCIS") [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Tenant Construction Project Income | 10 | 15 | 11 | 43
U.S. Coast Guard ("USCG") [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Tenant Construction Project Income | 0 | 83 | 0 | 290
Department of Transportation ("DOT") [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Tenant Construction Project Income | 4 | 6 | 4 | 57
General Services Administration - Other [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Tenant Construction Project Income | 0 | 108 | 0 | 150
State of California ("CA") [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Tenant Construction Project Income | 0 | 0 | 0 | 41
Drug Enforcement Agency (“DEA”) [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Tenant Construction Project Income | 0 | 33 | 0 | 33
Homeland Security Investigations ("HSI") [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Tenant Construction Project Income | $ 0 | $ 94 | $ 0 | $ 94

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