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Summary of Significant Accounting Policies - Narrative (Details) $ in Thousands, shares in Millions, ft² in Millions	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2025 USD ($) ft² state variable_interest_entity loan note_receivable financing_receivable property shares	Jun. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) ft² state variable_interest_entity loan note_receivable financing_receivable property segment joint_venture shares	Sep. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Business Overview:
Gross investment amount, total	$ 10,400,000			$ 10,400,000
Number of real estate properties \| property	519			519
Number of properties held in unconsolidated joint ventures \| property	63			63
Number of states that the company owns real estate in, whole units \| state	28			28
Approximate square feet invested in by company \| ft²	29.8			29.8
Nationwide portfolio (percent)	93.00%			93.00%
Principles of Consolidation:
Equity ownership for consolidation (percent)	100.00%			100.00%
Number of variable interest entities \| variable_interest_entity	3			3
Segment Reporting:
Number of operating segments \| segment				1
Redeemable Non-Controlling Interests:
Redeemable non-controlling interests	$ 4,332	$ 4,332	$ 3,875	$ 4,332	$ 3,875	$ 4,778	$ 3,875	$ 3,868
Asset Impairment:
Impairment of real estate assets	104,400			255,400
Real Estate Notes Receivable:
Investment in financing receivable, net	$ 84,100			84,100
Allowance for Credit Losses, Interest Income, Income from Real Estate Notes Receivable:
Credit loss reserves		$ 1,500		$ 1,471		$ 59,563
Number of recognized lease financial receivables \| financing_receivable	2			2
Income from financing receivables	$ 2,000		2,100	$ 5,900	6,300
Number of loans on non-accrual status \| loan	2			2
Fair Value, Inputs, Level 3
Asset Impairment:
Number of properties measured at fair value \| property	8			8
Properties measured at fair value	$ 102,700			$ 102,700
Notes Receivable
Allowance for Credit Losses, Interest Income, Income from Real Estate Notes Receivable:
Interest income	$ 1,500		$ 1,800	$ 4,700	$ 6,000
Variable Interest Entity
Principles of Consolidation:
Number of variable interest entities \| variable_interest_entity	4			4
Number of notes receivable \| note_receivable	3			3
Number of joint ventures \| joint_venture				1
HealthCare Realty Trust Incorporated \| Other Investors
Business Overview:
Subsidiary, ownership percentage, noncontrolling owner	1.40%			1.40%
Non-Controlling Interest Holders \| Healthcare Trust of America Holdings L P
Principles of Consolidation:
Limited partner's capital, units outstanding (in shares) \| shares	4.9			4.9
Healthcare Trust of America Holdings L P
Business Overview:
Equity interest owned (percent)	98.60%			98.60%
Property Entities Not Determined to be VIEs
Business Overview:
Equity interest owned (percent)	100.00%			100.00%
Real Estate Properties Held in Joint Ventures
Business Overview:
Joint venture ownership (percent)	30.00%			30.00%