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Gain (Loss) From Change Of Control, Net Of Tax

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Number Of Properties Acquired

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Area of land held.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Face (par) amount of debt instrument at time of issuance.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Cash outflow related to amounts given in advance to show or confirm an intention to complete an acquisition of land, buildings, other structures, or any item classified as real estate.

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The cash outflow from the acquisition of real estate intended to generate income for the owner; excludes land acquired for use by the owner.

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The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner; excludes real estate acquired for use by the owner.

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The cash outflow associated with the purchase of real estate held-for-investment and real estate joint ventures.

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The cash inflow from the sale of an investment interest in a joint venture that the reporting entity has not previously accounted for using consolidation or the equity method of accounting.

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Real Estate Transactions - Real Estate Investments (Details)	1 Months Ended									6 Months Ended		12 Months Ended
	Jul. 31, 2021 USD ($) property	Jun. 30, 2021 USD ($) property	Apr. 30, 2021 USD ($) property	Feb. 28, 2021 USD ($) property	Dec. 31, 2020 USD ($) property	Nov. 30, 2020 USD ($) property	Oct. 31, 2020 USD ($) a property	Jul. 31, 2020 USD ($) property	Apr. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) asset	Jun. 30, 2020 USD ($)	Dec. 31, 2020 asset
Real Estate [Line Items]
Number of properties acquired \| asset										0
Loss from change of control										$ (1,042,000)	$ (169,962,000)
Debt assumed		$ 5,076,024,000								$ 5,076,024,000
Life science joint ventures
Real Estate [Line Items]
Investment ownership percentage		49.00%								49.00%
Waldwick
Real Estate [Line Items]
Number of properties acquired \| property							1
Investment ownership percentage							100.00%
Additional ownership percentage acquired							15.00%
Payments to acquire real estate joint ventures							$ 4,000,000
Gain from change of control, net							$ 6,000,000
Mbk Jv
Real Estate [Line Items]
Number of properties acquired \| property						1
Proceeds from divestiture of interest in joint venture						$ 11,000,000
Loss from change of control						16,000,000
Debt assumed						36,000,000
San Francisco, California
Real Estate [Line Items]
Area of land \| a							12
Payments to acquire land							$ 128,000,000
Number of adjacent sites currently held \| property							2
Payments for deposits on real estate acquisitions						$ 10,000,000
San Francisco, California \| First Tranche
Real Estate [Line Items]
Payments to acquire land			$ 61,000,000
Massachusetts
Real Estate [Line Items]
Payments to acquire real estate					$ 54,000,000
Massachusetts \| Life science joint ventures
Real Estate [Line Items]
Investment ownership percentage					49.00%							49.00%
Medical office
Real Estate [Line Items]
Number of properties acquired \| asset												7
Medical office \| Mortgage Debt
Real Estate [Line Items]
Amount			$ 142,000,000
Medical office \| TENNESSEE
Real Estate [Line Items]
Number of properties acquired \| property				1
Payments to acquire real estate				$ 13,000,000
Medical office \| COLORADO
Real Estate [Line Items]
Number of properties acquired \| property			1
Payments to acquire real estate			$ 38,000,000
Medical office \| UNITED STATES
Real Estate [Line Items]
Number of properties acquired \| property			14
Payments to acquire real estate			$ 371,000,000
Medical office \| FLORIDA
Real Estate [Line Items]
Number of properties acquired \| property		1
Payments to acquire real estate		$ 16,000,000
Medical office \| Kansas \| Subsequent Event
Real Estate [Line Items]
Number of properties acquired \| property	1
Payments to acquire real estate	$ 50,000,000
Medical office \| NEW JERSEY \| Subsequent Event
Real Estate [Line Items]
Number of properties acquired \| property	3
Payments to acquire real estate	$ 155,000,000
Medical office \| ARIZONA
Real Estate [Line Items]
Number of properties acquired \| property								1
Payments to acquire real estate								$ 27,000,000
Medical office \| Indiana, Missouri, Illinois
Real Estate [Line Items]
Number of properties acquired \| property							7
Payments to acquire real estate							$ 169,000,000
Medical office \| T X
Real Estate [Line Items]
Number of properties acquired \| property					1
Payments to acquire real estate					$ 34,000,000
Life science
Real Estate [Line Items]
Number of properties acquired \| asset												3
Life science \| Massachusetts
Real Estate [Line Items]
Number of properties acquired \| property					3
Payments to acquire real estate					$ 610,000,000				$ 320,000,000
Land parcel \| Mbk Jv
Real Estate [Line Items]
Number of properties acquired \| property						1