XML 106 R84.htm IDEA: XBRL DOCUMENT v3.22.0.1
Stockholders' Equity of the Company - At-The-Market Offering and Derivatives and Distributions (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dividends Payable [Line Items]      
Aggregate net proceeds after selling commissions $ 0 $ 721,665 $ 353,722
Accrued dividend and distributions      
Accrued dividends and distributions $ 61,850 $ 59,431  
Summary of shares and units      
Common stock 116,464,169 116,035,827  
Restricted Stock Units (RSUs)      
Summary of shares and units      
RSUs 1,292,802 1,638,026  
Common stockholders and noncontrolling unitholders      
Accrued dividend and distributions      
Accrued dividends and distributions $ 61,850 $ 59,431  
Common Stock      
Accrued dividend and distributions      
Accrued dividends and distributions $ 60,561 $ 58,018  
Summary of shares and units      
Common stock 116,464,169 116,035,827  
Noncontrolling common unitholders of the Operating Partnership      
Accrued dividend and distributions      
Accrued dividends and distributions $ 598 $ 575  
Issuance of Equity under ATM Program      
Dividends Payable [Line Items]      
Shares of common stock sold during the period (in shares)   3,147,110  
Weighted average price per share of common stock (in dollars per share)   $ 80.08  
Aggregate gross proceeds   $ 252,000  
Aggregate net proceeds after selling commissions   247,300  
Kilroy Realty L.P.      
Dividends Payable [Line Items]      
Aggregate net proceeds after selling commissions 0 721,665 $ 353,722
Accrued dividend and distributions      
Accrued dividends and distributions 61,850 59,431  
Kilroy Realty L.P. | Restricted Stock Units (RSUs)      
Accrued dividend and distributions      
Accrued dividends and distributions $ 691 $ 838  
Kilroy Realty L.P. | Market measure-based Restricted Stock Units (RSUs)      
Summary of shares and units      
Number of RSUs outstanding (in shares) 976,464 873,709