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.

Segments (Details) $ in Thousands	3 Months Ended						9 Months Ended
Segments (Details) $ in Thousands	Sep. 30, 2025 USD ($)	Jun. 30, 2025 USD ($)	Mar. 31, 2025 USD ($)	Sep. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Sep. 30, 2025 USD ($) operatingSegment reportableSegment	Sep. 30, 2024 USD ($)
Segment Reporting [Abstract]
Number of operating segments \| operatingSegment							1
Number of reportable segments \| reportableSegment							1
REVENUES
Rental income	$ 274,909			$ 285,951			$ 826,224	$ 836,760
Other property income	4,835			3,987			14,256	12,490
Total revenues	279,744			289,938			840,480	849,250
EXPENSES:
Property expenses	61,764			63,593			179,053	180,192
Real estate taxes	25,878			26,677			81,008	84,925
Ground leases	3,018			2,977			9,057	8,725
General and administrative expenses	18,247			17,981			53,623	54,097
Leasing costs	2,610			2,353			7,760	6,751
Depreciation and amortization	87,487			91,879			262,231	267,061
Total expenses	199,004			205,460			592,732	601,751
OTHER INCOME (EXPENSES):
Interest income	3,119			9,688			4,765	32,962
Interest expense	(32,152)			(36,408)			(94,144)	(112,042)
Other income (expense)	91			(85)			124	(499)
Gains on sales of depreciable operating properties	110,484			0			127,038	0
Total other expenses	81,542			(26,805)			37,783	(79,579)
NET INCOME	162,282	$ 79,568	$ 43,681	57,673	$ 54,547	$ 55,700	285,531	167,920
Office and Life Science Properties Segment
REVENUES
Rental income	274,909			285,951			826,224	836,760
Other property income	4,835			3,987			14,256	12,490
Total revenues	279,744			289,938			840,480	849,250
EXPENSES:
Property expenses	61,764			63,593			179,053	180,192
Real estate taxes	25,878			26,677			81,008	84,925
Ground leases	3,018			2,977			9,057	8,725
General and administrative expenses	18,247			17,981			53,623	54,097
Leasing costs	2,610			2,353			7,760	6,751
Depreciation and amortization	87,487			91,879			262,231	267,061
Total expenses	199,004			205,460			592,732	601,751
OTHER INCOME (EXPENSES):
Interest income	3,119			9,688			4,765	32,962
Interest expense	(32,152)			(36,408)			(94,144)	(112,042)
Other income (expense)	91			(85)			124	(499)
Gains on sales of depreciable operating properties	110,484			0			127,038	0
Total other expenses	81,542			(26,805)			37,783	(79,579)
NET INCOME	$ 162,282			$ 57,673			$ 285,531	$ 167,920