CONSOLIDATED STATEMENTS OF CAPITAL (KILROY REALTY, L.P.) (Parenthetical) - $ / shares	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Kilroy Realty L.P.
Distributions declared per common unit (dollars per share)	$ 2.16	$ 2.16	$ 2.16

Cash dividends declared or paid to each outstanding limited partnership and general partnership unit during the reporting period.

No definition available.

Name:	us-gaap_DistributionsPerLimitedPartnershipAndGeneralPartnershipUnitOutstandingBasic
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration