CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
REAL ESTATE ASSETS (Notes 2 and 3):
Land and improvements	$ 1,661,679	$ 1,750,820
Buildings and improvements	8,658,236	8,598,751
Undeveloped land and construction in progress	2,355,181	2,309,624
Total real estate assets held for investment	12,675,096	12,659,195
Accumulated depreciation and amortization	(2,952,576)	(2,824,616)
Total real estate assets held for investment, net	9,722,520	9,834,579
CASH AND CASH EQUIVALENTS (Note 14)	372,416	165,690
MARKETABLE SECURITIES (Note 11)	33,569	27,965
CURRENT RECEIVABLES, NET	13,191	11,033
DEFERRED RENT RECEIVABLES, NET	436,886	451,996
DEFERRED LEASING COSTS AND ACQUISITION-RELATED INTANGIBLE ASSETS, NET (Note 2)	229,175	225,937
RIGHT OF USE GROUND LEASE ASSETS	128,396	129,222
PREPAID EXPENSES AND OTHER ASSETS, NET (Notes 2 and 4)	56,046	51,935
TOTAL ASSETS	10,992,199	10,898,357
LIABILITIES:
Secured debt, net (Notes 5 and 11)	593,956	598,199
Unsecured debt, net (Notes 5 and 11)	3,995,555	3,999,566
Accounts payable, accrued expenses, and other liabilities	321,188	285,011
Ground lease liabilities	127,830	128,422
Accrued dividends and distributions	64,996	64,850
Deferred revenue and acquisition-related intangible liabilities, net (Note 2)	127,931	142,437
Rents received in advance and tenant security deposits	74,888	71,003
Total liabilities	5,306,344	5,289,488
COMMITMENTS AND CONTINGENCIES (Note 10)
Stockholders’ Equity (Note 6):
Common stock, $.01 par value, 280,000,000 shares authorized, 118,304,079 and 118,046,674 shares issued and outstanding	1,183	1,181
Additional paid-in capital	5,223,369	5,209,653
Retained earnings	240,810	171,212
Total stockholders’ equity	5,465,362	5,382,046
Noncontrolling Interests (Notes 1 and 7):
Common units of the Operating Partnership	53,154	52,472
Noncontrolling interests in consolidated property partnerships	167,339	174,351
Total noncontrolling interests	220,493	226,823
Total equity	5,685,855	5,608,869
TOTAL LIABILITIES AND EQUITY	$ 10,992,199	$ 10,898,357

Disposal Group, Including Discontinued Operation, Advance Rent, Including Tenant Security Deposits

No definition available.

Name:	krc_DisposalGroupIncludingDiscontinuedOperationAdvanceRentIncludingTenantSecurityDeposits
Namespace Prefix:	krc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

This element represents (1) costs incurred by the lessor that are (a) costs to originate a lease incurred in transactions with independent third parties that (i) result directly from and are essential to acquire that lease and (ii) would not have been incurred had that leasing transaction not occurred and (b) certain costs directly related to specified activities performed by the lessor for that lease. Those activities are: evaluating the prospective lessee's financial condition; evaluating and recording guarantees, collateral, and other security arrangements; negotiating lease terms; preparing and processing lease documents; and closing the transaction; (2) the identifiable intangible asset established upon acquisition based on a favorable difference between the terms of an acquired lease and the current market terms for that lease at the acquisition date; and (3) the amount of value allocated by a lessor (acquirer) to lease agreements which exist at acquisition of a leased property. This element is net of accumulated amortization.

+ References

No definition available.