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Secured and Unsecured Debt of the Operating Partnership - Debt Maturities (Details) - Kilroy Realty L.P. $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2024 USD ($) extension_option | Dec. 31, 2023 USD ($)
Stated debt maturities and scheduled amortization payments |  |
Remaining 2024 | $ 526,744 |
2025 | 606,246 |
2026 | 401,317 |
2027 | 249,125 |
2028 | 400,000 |
2029 | 475,000 |
Thereafter | 2,500,000 |
Total aggregate principal value | 5,158,432 |
Unsecured Debt | 2022 Term Loan Facility |  |
Stated debt maturities and scheduled amortization payments |  |
Long-term debt | $ 120,000 |
Number of extension options | extension_option | 2 |
Extension period (in months) | 12 months |
Unsecured Debt | 2024 Term Loan Facility |  |
Stated debt maturities and scheduled amortization payments |  |
Long-term debt | $ 200,000 |
Number of extension options | extension_option | 2 |
Extension period (in months) | 12 months |
Unsecured Senior Notes |  |
Stated debt maturities and scheduled amortization payments |  |
Unamortized debt issuance expense | $ 28,800 |
Senior Notes |  |
Stated debt maturities and scheduled amortization payments |  |
Debt issuance discount | $ 9,100 |
Term Loan Facility | 2022 Term Loan Facility |  |
Stated debt maturities and scheduled amortization payments |  |
Extension period (in months) | 12 months | 12 months
Unamortized debt issuance expense |  | $ 2,300

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