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Supplemental Cash Flow Information of the Operating Partnership - Supplemental Cash Flow (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
SUPPLEMENTAL CASH FLOWS INFORMATION:
Capitalized interest	$ 38,115	$ 34,716
Cash paid for interest, net of capitalized interest of $38,115 and $34,716 as of June 30, 2024 and 2023, respectively	59,946	48,287
Cash paid for amounts included in the measurement of ground lease liabilities	3,525	3,414
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	74,624	90,277
Tenant improvements funded directly by tenants	857	8,033
Remeasurement of ground lease liability and related right of use ground lease asset	4,782	0
NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders	65,118	64,438
Kilroy Realty L.P.
SUPPLEMENTAL CASH FLOWS INFORMATION:
Capitalized interest	38,115	34,716
Cash paid for interest, net of capitalized interest of $38,115 and $34,716 as of June 30, 2024 and 2023, respectively	59,946	48,287
Cash paid for amounts included in the measurement of ground lease liabilities	3,525	3,414
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	74,624	90,277
Tenant improvements funded directly by tenants	857	8,033
Remeasurement of ground lease liability and related right of use ground lease asset	4,782	0
NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders	$ 65,118	$ 64,438

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