Segments (Details) $ in Thousands	12 Months Ended
Dec. 31, 2024 USD ($)	Dec. 31, 2024 reportableSegment	Dec. 31, 2024 operatingSegment	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Segment Reporting [Abstract]
Number of operating segments		1	1
Number of reportable segments \| reportableSegment		1
REVENUES (Note 2):
Rental income (Note 18)	$ 1,118,115			$ 1,117,737	$ 1,086,018
Other property income	17,514			11,957	10,969
Total revenues	1,135,629			1,129,694	1,096,987
EXPENSES:
Property expenses	243,441			228,964	202,744
Real estate taxes	108,951			105,868	105,869
Ground leases (Note 19)	11,715			9,732	7,565
General and administrative expenses (Note 16)	72,066			93,434	93,642
Leasing costs	8,764			6,506	4,879
Depreciation and amortization (Notes 2 and 7)	356,182			355,278	357,611
Total expenses	801,119			799,782	772,310
OTHER INCOME (EXPENSES):
Interest and other income, net (Note 20)	37,752			22,592	1,765
Interest expense (Note 10)	(145,287)			(114,216)	(84,278)
Gains on sales of depreciable operating properties (Note 4)	0			0	17,329
Gain on sales of long-lived assets	5,979			0	0
Total other (expenses) income	(101,556)			(91,624)	(65,184)
Net income	232,954			238,288	259,493
Office and Life Science Properties Segment
REVENUES (Note 2):
Rental income (Note 18)	1,118,115			1,117,737	1,086,018
Other property income	17,514			11,957	10,969
Total revenues	1,135,629			1,129,694	1,096,987
EXPENSES:
Property expenses	243,441			228,964	202,744
Real estate taxes	108,951			105,868	105,869
Ground leases (Note 19)	11,715			9,732	7,565
General and administrative expenses (Note 16)	72,066			93,434	93,642
Leasing costs	8,764			6,506	4,879
Depreciation and amortization (Notes 2 and 7)	356,182			355,278	357,611
Total expenses	801,119			799,782	772,310
OTHER INCOME (EXPENSES):
Interest and other income, net (Note 20)	37,752			22,592	1,765
Interest expense (Note 10)	(145,287)			(114,216)	(84,278)
Gains on sales of depreciable operating properties (Note 4)	0			0	17,329
Gain on sales of long-lived assets	5,979			0	0
Total other (expenses) income	(101,556)			(91,624)	(65,184)
Net income	$ 232,954			$ 238,288	$ 259,493

Income derived from investments in debt and equity securities and on cash and cash equivalents and the net total realized and unrealized gain (loss) included in earnings for the period as a result of selling or holding marketable securities categorized as trading. Interest income represents earnings which reflect the time value of money or transactions in which the payments are for the use or forbearance of money. Dividend income represents a distribution of earnings to shareholders by investee companies.

No definition available.