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CONSOLIDATED STATEMENTS OF CAPITAL (KILROY REALTY, L.P.) (Parenthetical) - $ / shares | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Kilroy Realty L.P. |  |
Dividends declared per common unit (in dollars per unit) | $ 0.54 | $ 0.54

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- Definition Cash dividends declared or paid to each outstanding limited partnership and general partnership unit during the reporting period. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | dei_LegalEntityAxis=krc_KilroyRealtyL.P.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |