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Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures in Period

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Joint Venture, Adjacent Land Parcel

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Joint Venture, Other Adjustments

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Joint Venture, Real Property, at Cost

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Joint Venture, Square Footage

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Number Of Limited Liability Companies

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Amount of equity impact of cash distributions declared to unit-holder of limited liability company (LLC).

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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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Amount of income (loss) for proportionate share of equity method investee's income (loss).

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Amount of investment in equity method investee and investment in and advance to affiliate.

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Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

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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 book value of investments in real estate joint ventures including direct and indirect investments.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Real Estate Investments - Unconsolidated Joint Venture Acquisitions (Details) $ in Thousands							3 Months Ended		9 Months Ended
	Jul. 27, 2021 USD ($) ft² a	May 10, 2021 USD ($) ft²	Apr. 30, 2021 USD ($) ft²	Apr. 08, 2021 USD ($) ft²	Apr. 01, 2021 USD ($) ft²	Mar. 30, 2021 USD ($) ft²	Sep. 30, 2021 USD ($) ft²	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) ft² property	Sep. 30, 2020 USD ($)	Oct. 21, 2021 USD ($) ft²
Real Estate [Line Items]
Joint venture ownership (percent)							50.00%		50.00%
Equity Method Investments [Roll Forward]
Investments in unconsolidated joint ventures, beginning of period									$ 73,137
Equity loss recognized during the period							$ (183)	$ (66)	(404)	$ (194)
Owner distributions							0	(9)	0	(193)
Net LLC investments at the end of the period							122,345		122,345
Medical office building
Real Estate [Line Items]
Purchase Price							100,243		100,243
Cash Consideration									98,331
Real Estate							99,477		99,477
Other							$ (1,146)		$ (1,146)
Square Footage \| ft²							286,476		286,476
Medical office building \| Denver, CO
Real Estate [Line Items]
Purchase Price						$ 14,375
Cash Consideration						14,056
Real Estate						14,550
Other						$ (494)
Square Footage \| ft²						59,359
Joint venture ownership (percent)						50.00%
Medical office building \| Denver, CO \| Subsequent event
Real Estate [Line Items]
Purchase Price											$ 23,000
Square Footage \| ft²											57,257
Joint venture ownership (percent)											50.00%
Medical office building \| Colorado Springs, CO
Real Estate [Line Items]
Purchase Price	$ 9,133				$ 7,200
Cash Consideration	9,137				7,288
Real Estate	9,135				7,347
Other	$ 2				$ (59)
Square Footage \| ft²	23,956				27,510
Joint venture ownership (percent)	50.00%				50.00%
Joint venture, adjacent land parcel (acres) \| a	3.0
Medical office building \| Los Angeles, CA
Real Estate [Line Items]
Purchase Price		$ 24,600		$ 31,335
Cash Consideration		24,259		30,179
Real Estate		24,147		30,642
Other		$ 112		$ (463)
Square Footage \| ft²		73,078		57,573
Joint venture ownership (percent)		50.00%		50.00%
Medical office building \| San Antonio, TX
Real Estate [Line Items]
Purchase Price			$ 13,600
Cash Consideration			13,412
Real Estate			13,656
Other			$ (244)
Square Footage \| ft²			45,000
Joint venture ownership (percent)			50.00%
Parking Garages
Equity Method Investments [Roll Forward]
Investments in unconsolidated joint ventures, beginning of period							$ 117,935	7,818	$ 73,137	8,130
New investments during the period							4,593	0	49,612	0
Equity loss recognized during the period							(183)	(66)	(404)	(194)
Net LLC investments at the end of the period							$ 122,345	$ 7,743	$ 122,345	$ 7,743
Parking Garages \| Atlanta, GA
Real Estate [Line Items]
Number of limited liability companies \| property									2
Parking Garages \| Atlanta, GA \| Limited Liability Company One
Real Estate [Line Items]
Ownership interest in LLC (percent)									55.00%
Parking Garages \| Atlanta, GA \| Limited Liability Company Two
Real Estate [Line Items]
Ownership interest in LLC (percent)									27.00%