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Organization, Ownership and Basis of Presentation - Narrative (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 USD ($) a property development_site variableInterestEntity director property_partnership | Dec. 31, 2023 USD ($) director variableInterestEntity
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |
Lease-up properties occupancy percentage | 95.00% |
Lease-up properties, period from the date of cessation of major base building construction activities | 1 year |
Assets | $ 11,599,200 | $ 11,401,045
Liabilities | 5,956,469 | 5,741,352
Noncontrolling interest in VIE | $ 176,637 | $ 178,257
Variable Interest Entity, Primary Beneficiary |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |
Number of VIEs | variableInterestEntity | 2 | 2
Assets | $ 415,200 | $ 416,700
Liabilities | 25,300 | 23,600
Variable Interest Entity, Primary Beneficiary | Real Estate Investment |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |
Assets | $ 346,000 | 350,000
San Francisco, California |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |
Number of properties | property | 1 |
101 First LLC and 303 Second LLC |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |
Company owned general partnership interest | 56.00% |
101 First LLC and 303 Second LLC | Variable Interest Entity, Primary Beneficiary |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |
Noncontrolling interest in VIE | $ 172,300 | $ 173,700
Redwood LLC |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |
Company owned general partnership interest | 93.00% |
Redwood LLC | Redwood City, California |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |
Number of properties | property | 2 |
Operating Partnership |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |
Ownership interest (percent) | 99.00% | 99.00%
Operating Partnership | Non-Affiliated Investors and Certain Executive Officer and Directors |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |
Ownership interest (percent) | 1.00% | 1.00%
Number of directors | director | 1 | 1
Future Development Site |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |
Number of future development sites | development_site | 8 |
Area of undeveloped land | a | 64 |
Stabilized Office Properties | Washington |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |
Number of properties | property | 10 |
Stabilized Office Properties | Texas |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |
Number of properties | property | 1 |
Future Development Project | Washington |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |
Number of properties | development_site | 1 |
Future Development Project | Texas |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |
Number of properties | development_site | 1 |
Properties And Development Projects |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |
Property ownership percentage | 100.00% |
Office Properties Owned By Consolidated Property Partnerships |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |
Number of properties | property | 4 |
Consolidated Property Partnerships |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |
Number of property partnerships | property_partnership | 3 |
Consolidated Property Partnerships Owning Office Properties Through REITs | 101 First LLC and 303 Second LLC |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |
Number of property partnerships | property_partnership | 2 |

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