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Document and Entity Information
May 12, 2025
Cover [Abstract]  
Entity Registrant Name KILROY REALTY CORP
Amendment Flag false
Entity Central Index Key 0001025996
Document Type 8-K
Document Period End Date May 12, 2025
Entity Incorporation State Country Code MD
Entity File Number 001-12675
Entity Tax Identification Number 95-4598246
Entity Address, Address Line One 12200 W. Olympic Boulevard
Entity Address, Address Line Two Suite 200
Entity Address, City or Town Los Angeles
Entity Address, State or Province CA
Entity Address, Postal Zip Code 90064
City Area Code (310)
Local Phone Number 481-8400
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, $.01 par value
Trading Symbol KRC
Security Exchange Name NYSE
Entity Emerging Growth Company false