v3.26.1
Secured and Unsecured Debt of the Operating Partnership - Capitalized Interest (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Capitalized Interest and Loan Fees [Line Items]    
Interest expense $ 38,511 $ 31,148
Kilroy Realty L.P.    
Capitalized Interest and Loan Fees [Line Items]    
Gross interest expense 52,502 51,696
Capitalized interest (13,991) (20,548)
Interest expense $ 38,511 $ 31,148