Secured and Unsecured Debt of the Operating Partnership - Debt Maturities (Details) - Kilroy Realty L.P. $ in Thousands	Mar. 31, 2022 USD ($)
Stated debt maturities and scheduled amortization payments
Remaining 2022	$ 4,186
2023	5,775
2024	431,006
2025	406,246
2026	401,317
2027	249,125
Thereafter	2,600,000
Total debt	4,097,655
Unsecured Term Loan Facility, Unsecured Senior Notes and Secured Debt
Stated debt maturities and scheduled amortization payments
Unamortized deferred financing costs	22,000
Senior Notes
Stated debt maturities and scheduled amortization payments
Unamortized discount	$ 7,100

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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