Investments in Unconsolidated Joint Ventures - Schedule of Equity Method Investments (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026 USD ($) property joint_venture	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($) property joint_venture	Jun. 30, 2025 USD ($)	Mar. 31, 2026 property	Jan. 31, 2026 property	Dec. 31, 2025 USD ($) property joint_venture
Schedule of Equity Method Investments [Line Items]
Investments in and advances to unconsolidated joint ventures	$ 526,780		$ 526,780				$ 802,601
Gain (loss) on sales of real estate, net	$ 9,988	$ 1,636	$ 60,657	$ 1,636
South San Francisco JVs | Lab
Schedule of Equity Method Investments [Line Items]
Property count | property	7		7
Investment ownership (as a percent)	70.00%		70.00%
Equity method investment, amount	$ 285,611		$ 285,611				285,387
Callan Ridge JV | Lab
Schedule of Equity Method Investments [Line Items]
Property count | property	2		2
Investment ownership (as a percent)	35.00%		35.00%
Equity method investment, amount	$ 73,729		$ 73,729				74,369
HQ Point Preferred Equity Investment | Other non-reportable
Schedule of Equity Method Investments [Line Items]
Property count | property	2		2
Investment ownership (as a percent)	36.00%		36.00%
Equity method investment, amount	$ 57,154		$ 57,154				53,859
BX JV I and II
Schedule of Equity Method Investments [Line Items]
Investment ownership (as a percent)	20.00%		20.00%
Number of unconsolidated joint ventures (in joint ventures) | joint_venture	2		2
BX JV I and II | Outpatient Medical
Schedule of Equity Method Investments [Line Items]
Property count | property	6		6		6
Investment ownership (as a percent)	20.00%		20.00%
Equity method investment, amount	$ 43,349		$ 43,349				0
Lab JV | Lab
Schedule of Equity Method Investments [Line Items]
Property count | property	1		1
Investment ownership (as a percent)	49.00%		49.00%
Equity method investment, amount	$ 30,969		$ 30,969				31,406
PMAK JV | Outpatient Medical
Schedule of Equity Method Investments [Line Items]
Property count | property	59		59
Investment ownership (as a percent)	12.00%		12.00%
Equity method investment, amount	$ 17,172		$ 17,172				21,711
Needham Land Parcel JV | Lab
Schedule of Equity Method Investments [Line Items]
Property count | property	0		0
Investment ownership (as a percent)	38.00%		38.00%
Equity method investment, amount	$ 13,313		$ 13,313				$ 12,453
Outpatient Medical JVs
Schedule of Equity Method Investments [Line Items]
Number of unconsolidated joint ventures (in joint ventures) | joint_venture	1		1				2
Gain (loss) on sales of real estate, net	$ 2,000
Outpatient Medical JVs | Outpatient Medical
Schedule of Equity Method Investments [Line Items]
Property count | property	1		1
Investment ownership (as a percent)	67.00%		67.00%
Equity method investment, amount	$ 4,086		$ 4,086				$ 7,177
HCP Ventures IV, LLC
Schedule of Equity Method Investments [Line Items]
Investment ownership (as a percent)							20.00%
Suburban Properties, LLC
Schedule of Equity Method Investments [Line Items]
Investment ownership (as a percent)	67.00%		67.00%				67.00%
Davis JV | Outpatient Medical
Schedule of Equity Method Investments [Line Items]
Property count | property	19		19
Investment ownership (as a percent)	48.00%		48.00%
Equity method investment, amount	$ 1,397		$ 1,397				$ 3,530
SWF SH JV | Senior housing
Schedule of Equity Method Investments [Line Items]
Property count | property	0		0
Investment ownership (as a percent)	0.00%		0.00%
Equity method investment, amount	$ 0		$ 0				$ 312,709
SWF SH JV | Senior housing | SWF SH JV
Schedule of Equity Method Investments [Line Items]
Property count | property						19	19
Investment ownership (as a percent)						46.50%	53.50%