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Gross amount of debt extinguished.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Subsequent Events - Narrative (Details)	Aug. 02, 2022 $ / shares	Jul. 20, 2022 USD ($) extension_option	Jul. 06, 2022 $ / shares	Jul. 01, 2022 $ / shares	Aug. 09, 2022 USD ($)	Jul. 22, 2022	Jun. 30, 2022 USD ($) $ / shares	May 13, 2022 USD ($)	Feb. 28, 2022 director	Dec. 31, 2021 $ / shares
Business Acquisition [Line Items]
Common stock, par value (dollars per share) \| $ / shares							$ 0.01			$ 0.01
Number of board directors \| director									9
Subsequent event
Business Acquisition [Line Items]
Dividends declared per common share, during the period (in dollars per share) \| $ / shares	$ 0.1090		$ 4.82	$ 0.2010
Subsequent event \| Disposed of by Sale \| Closed Joint Ventures and Asset Sales
Business Acquisition [Line Items]
Joint ventures and assets sold					$ 433,000,000
Amended and Restated Credit Agreement \| Revolving Credit Facility \| Subsequent event
Business Acquisition [Line Items]
Debt extinguished amount		$ 700,000,000
Term Loan Facility Due May 2026 \| Subsequent event
Business Acquisition [Line Items]
Debt extinguished amount		200,000,000
Amended Term Loan Facility Due May 2026 \| Subsequent event
Business Acquisition [Line Items]
Term-loan facility		$ 200,000,000
Number of extension options \| extension_option		2
Extension option period		1 year
Term Loan Facility Due June 2026 \| Subsequent event
Business Acquisition [Line Items]
Debt extinguished amount		$ 150,000,000
Amended Term Loan Facility Due June 2026 \| Subsequent event
Business Acquisition [Line Items]
Term-loan facility		$ 150,000,000
Credit Facility Maturing October 2025 \| Revolving Credit Facility
Business Acquisition [Line Items]
Credit facility							$ 1,000,000,000
Credit Facility Maturing October 2025 \| Revolving Credit Facility \| Subsequent event
Business Acquisition [Line Items]
Number of extension options \| extension_option		2
Credit facility		$ 1,500,000,000
Term Loan Facility Due October 2025 \| Subsequent event
Business Acquisition [Line Items]
Credit facility		300,000,000
Term Loan Facility Due January 2024 - July 20, 2027 \| Subsequent event
Business Acquisition [Line Items]
Credit facility		$ 200,000,000
Delayed Term Loan Facility due July 20, 2023 \| Subsequent event
Business Acquisition [Line Items]
Number of extension options \| extension_option		2
Credit facility		$ 350,000,000
Delayed credit facility, period available for draws		12 months
Term Loan Facility Due January 20, 2028 \| Subsequent event
Business Acquisition [Line Items]
Credit facility		$ 300,000,000
Term Loan Agreement to Fund Special Dividend
Business Acquisition [Line Items]
Term-loan facility								$ 1,125,000,000
Healthcare Trust Of America, Inc
Business Acquisition [Line Items]
Common stock, par value (dollars per share) \| $ / shares							$ 0.01
Number of board directors \| director									4
Healthcare Trust Of America, Inc \| Senior Notes due 2025
Business Acquisition [Line Items]
Business combination, validly tendered and accepted notes, exchange amount							$ 250,000,000
Fixed interest rate (percent)							3.875%
Healthcare Trust Of America, Inc \| Senior Notes due 2025 \| Subsequent event
Business Acquisition [Line Items]
Fixed interest rate (percent)						3.875%
Healthcare Trust Of America, Inc \| Senior Notes due 2028
Business Acquisition [Line Items]
Business combination, validly tendered and accepted notes, exchange amount							$ 300,000,000
Fixed interest rate (percent)							3.625%
Healthcare Trust Of America, Inc \| Senior Notes due 2028 \| Subsequent event
Business Acquisition [Line Items]
Fixed interest rate (percent)						3.625%
Healthcare Trust Of America, Inc \| Senior Notes due 2030
Business Acquisition [Line Items]
Business combination, validly tendered and accepted notes, exchange amount							$ 300,000,000
Fixed interest rate (percent)							2.40%
Healthcare Trust Of America, Inc \| Senior Notes due 2030 \| Subsequent event
Business Acquisition [Line Items]
Fixed interest rate (percent)						2.40%
Healthcare Trust Of America, Inc \| Senior Notes due 2031
Business Acquisition [Line Items]
Business combination, validly tendered and accepted notes, exchange amount							$ 300,000,000
Fixed interest rate (percent)							2.05%
Healthcare Trust Of America, Inc \| Senior Notes due 2031 \| Subsequent event
Business Acquisition [Line Items]
Fixed interest rate (percent)						2.05%