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CONSOLIDATED STATEMENTS OF CAPITAL (KILROY REALTY, L.P.) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Jun. 30, 2025 | Mar. 31, 2025 | Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |  |  |  |  |
Net income | $ 162,282 | $ 79,568 | $ 43,681 | $ 57,673 | $ 54,547 | $ 55,700 | $ 285,531 | $ 167,920
Non-cash amortization of share-based compensation (Note 8) | 6,842 | 5,670 | 5,176 | 6,682 | 6,942 | 4,727 |  |
Settlement of restricted stock units for shares of common stock | 0 | 0 | 0 | 0 | 0 | 0 |  |
Distributions to noncontrolling interests in consolidated property partnerships | (11,996) | (7,074) | (7,234) | (4,629) | (5,911) | (6,898) |  |
Noncontrolling Interests in Consolidated Property Partnerships |  |  |  |  |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |  |  |  |  |
Net income | 6,062 | 11,119 | 4,673 | 5,295 | 5,336 | 5,780 |  |
Distributions to noncontrolling interests in consolidated property partnerships | (11,996) | (7,074) | (7,234) | (4,629) | (5,911) | (6,898) |  |
Kilroy Realty L.P. |  |  |  |  |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 5,593,444 | 5,579,985 | 5,608,869 | 5,634,258 | 5,642,731 | 5,659,693 | 5,608,869 | 5,659,693
Net income | 162,282 | 79,568 | 43,681 | 57,673 | 54,547 | 55,700 | 285,531 | 167,920
Issuance of share-based compensation awards | 480 | 477 | 1,476 | 1,107 | 1,085 | 4,017 |  |
Non-cash amortization of share-based compensation (Note 8) | 6,842 | 5,670 | 5,176 | 6,682 | 6,942 | 4,727 |  |
Settlement of restricted stock units for shares of common stock | 0 | 0 | 0 | 0 | 0 | 0 |  |
Repurchase of common units and restricted stock units | (213) | (197) | (6,009) | (21,718) | (20) | (5,898) |  |
Distributions to noncontrolling interests in consolidated property partnerships | (11,996) | (7,074) | (7,234) | (4,629) | (5,911) | (6,898) |  |
Distributions declared per common unit ($0.54 per unit) | (64,984) | (64,985) | (65,974) | (64,833) | (65,116) | (68,610) |  |
Ending balance | $ 5,685,855 | $ 5,593,444 | $ 5,579,985 | $ 5,608,540 | $ 5,634,258 | $ 5,642,731 | $ 5,685,855 | $ 5,608,540
Kilroy Realty L.P. | Partners’ Capital |  |  |  |  |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance (in shares) | 119,444,902 | 119,419,333 | 119,197,248 | 118,535,805 | 118,516,979 | 118,390,132 | 119,197,248 | 118,390,132
Beginning balance | $ 5,418,647 | $ 5,408,570 | $ 5,434,518 | $ 5,458,654 | $ 5,466,094 | $ 5,481,436 | $ 5,434,518 | $ 5,481,436
Net income | 157,744 | 69,112 | 39,383 | 52,887 | 49,669 | 50,422 |  |
Issuance of share-based compensation awards | 480 | 477 | 1,476 | 1,107 | 1,085 | 4,017 |  |
Non-cash amortization of share-based compensation (Note 8) | $ 6,842 | $ 5,670 | $ 5,176 | $ 6,682 | $ 6,942 | $ 4,727 |  |
Settlement of restricted stock units (in shares) | 14,634 | 31,774 | 377,801 | 1,249,236 | 19,395 | 217,496 |  |
Repurchase of common units and restricted stock units (in shares) | (4,883) | (6,205) | (155,716) | (587,793) | (569) | (90,649) |  |
Repurchase of common units and restricted stock units | $ (213) | $ (197) | $ (6,009) | $ (21,718) | $ (20) | $ (5,898) |  |
Distributions declared per common unit ($0.54 per unit) | $ (64,984) | $ (64,985) | $ (65,974) | $ (64,833) | $ (65,116) | $ (68,610) |  |
Ending balance (in shares) | 119,454,653 | 119,444,902 | 119,419,333 | 119,197,248 | 118,535,805 | 118,516,979 | 119,454,653 | 119,197,248
Ending balance | $ 5,518,516 | $ 5,418,647 | $ 5,408,570 | $ 5,432,779 | $ 5,458,654 | $ 5,466,094 | $ 5,518,516 | $ 5,432,779
Kilroy Realty L.P. | Noncontrolling Interests in Consolidated Property Partnerships |  |  |  |  |  |  |  |
Increase (Decrease) in Partners' Capital [Roll Forward] |  |  |  |  |  |  |  |
Beginning balance | 174,797 | 171,415 | 174,351 | 175,604 | 176,637 | 178,257 | 174,351 | 178,257
Net income | 4,538 | 10,456 | 4,298 | 4,786 | 4,878 | 5,278 |  |
Distributions to noncontrolling interests in consolidated property partnerships | (11,996) | (7,074) | (7,234) | (4,629) | (5,911) | (6,898) |  |
Ending balance | $ 167,339 | $ 174,797 | $ 171,415 | $ 175,761 | $ 175,604 | $ 176,637 | $ 167,339 | $ 175,761

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Name: | us-gaap_StatementEquityComponentsAxis=krc_PartnersCapitalCommonUnitMember
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Data Type: | na
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Period Type: |