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Summary of Significant Accounting Policies - Narrative (Details) shares in Millions, ft² in Millions | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2023 USD ($) | Dec. 31, 2023 USD ($) ft² reporting_unit financing_receivable property note_receivable variable_interest_entity state joint_venture shares | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Jan. 01, 2023 USD ($) | Jul. 20, 2022 USD ($) | Dec. 31, 2020 USD ($)
Business Overview: |  |  |  |  |  |  |
Gross investment, amount, total |  | $ 13,400,000,000 |  |  |  |  |
Number of owned real estate properties | property |  | 655 |  |  |  |  |
Number of states that the Company owns real estate in | state |  | 35 |  |  |  |  |
Approximate square feet invested in by company | ft² |  | 38.5 |  |  |  |  |
Number of properties | property |  | 33 |  |  |  |  |
Principles of Consolidation: |  |  |  |  |  |  |
Equity ownership for consolidation (percent) |  | 100.00% |  |  |  |  |
Number of entities | variable_interest_entity |  | 4 |  |  |  |  |
Segment Reporting: |  |  |  |  |  |  |
Number of reporting units | reporting_unit |  | 1 |  |  |  |  |
Real Estate Properties: |  |  |  |  |  |  |
Elimination of real estate lease intangibles against accumulated depreciation |  | $ 214,800,000 | $ 133,600,000 |  |  |  |
Depreciation |  | $ 518,600,000 | 320,800,000 | $ 170,000,000 |  |  |
Maximum period up to which interest capitalize on properties in stabilization |  | 1 year |  |  |  |  |
Goodwill and Other Intangible Assets: |  |  |  |  |  |  |
Goodwill |  | $ 250,530,000 | 223,202,000 |  |  | $ 247,043,000 |
Revenue from Contracts with Customers (Topic 606): |  |  |  |  |  |  |
Revenue Received |  | $ 1,900,000 | 1,500,000 | 1,400,000 |  |  |
Federal Income Taxes: |  |  |  |  |  |  |
Percentage of distribution of taxable income for qualify as REIT |  | 90.00% |  |  |  |  |
Unrecognized tax benefits, income tax penalties and interest expense |  | $ 0 | 0 | 0 |  |  |
Redeemable Non-Controlling Interests: |  |  |  |  |  |  |
Redeemable non-controlling interests |  | 3,868,000 | 2,014,000 | 0 |  |  | $ 0
Real Estate Notes Receivable: |  |  |  |  |  |  |
Real estate notes receivable, net |  | 173,614,000 | 99,643,000 |  |  |  |
Allowance for Credit Losses, Interest Income, Income from Real Estate Notes Receivable: |  |  |  |  |  |  |
Carrying value |  | 173,614,000 |  |  |  |  |
Credit loss reserves | $ 5,200,000 | $ 5,196,000 | 0 |  |  |  |
Number of recognized lease financial receivables | financing_receivable |  | 2 |  |  |  |  |
Income from financing receivables |  | $ 8,300,000 | 8,100,000 |  |  |  |
Financing receivable, nonaccrual |  |  |  |  | $ 48,900,000 |  |
Notes Receivable |  |  |  |  |  |  |
Allowance for Credit Losses, Interest Income, Income from Real Estate Notes Receivable: |  |  |  |  |  |  |
Interest income |  | $ 8,800,000 | 3,400,000 | $ 0 |  |  |
Variable Interest Entity |  |  |  |  |  |  |
Principles of Consolidation: |  |  |  |  |  |  |
Number of entities | variable_interest_entity |  | 3 |  |  |  |  |
Number of notes receivable | note_receivable |  | 2 |  |  |  |  |
Number of joint ventures | joint_venture |  | 1 |  |  |  |  |
Healthcare Trustof America Holdings L P | Non-Controlling Interest Holders |  |  |  |  |  |  |
Principles of Consolidation: |  |  |  |  |  |  |
Limited partners capital account outstanding (in units) | shares |  | 4.5 |  |  |  |  |
Limited partners ownership interest (in percent) |  | 1.20% |  |  |  |  |
Property Entities Not Determined to be VIEs |  |  |  |  |  |  |
Principles of Consolidation: |  |  |  |  |  |  |
Equity interest owned (percent) |  | 100.00% |  |  |  |  |
Healthcare Trustof America Holdings L P |  |  |  |  |  |  |
Principles of Consolidation: |  |  |  |  |  |  |
Equity interest owned (percent) |  | 98.80% |  |  |  |  |
Minimum |  |  |  |  |  |  |
Goodwill and Other Intangible Assets: |  |  |  |  |  |  |
Goodwill, purchase accounting adjustments |  | $ 27,300,000 |  |  |  |  |
Maximum |  |  |  |  |  |  |
Goodwill and Other Intangible Assets: |  |  |  |  |  |  |
Goodwill |  | 250,500,000 | 223,200,000 |  |  |  |
Interest Rate Swap |  |  |  |  |  |  |
Fair Value of Derivative Financial Instruments: |  |  |  |  |  |  |
Accumulated other comprehensive income (loss), net of tax |  | (10,700,000) | 2,100,000 |  |  |  |
Tenant and Capital Improvements |  |  |  |  |  |  |
Real Estate Properties: |  |  |  |  |  |  |
Fully depreciated tenant and capital improvements eliminated against accumulated depreciation |  |  | 4,100,000 |  |  |  |
At Market Lease Intangibles |  |  |  |  |  |  |
Real Estate Properties: |  |  |  |  |  |  |
Elimination of real estate lease intangibles against accumulated depreciation |  | $ 51,700,000 | $ 19,600,000 |  |  |  |
Real Estate Properties Held In Joint Ventures Member |  |  |  |  |  |  |
Business Overview: |  |  |  |  |  |  |
Weighted average ownership interest (percent) |  | 43.00% |  |  |  |  |
Number of properties | property |  | 33 |  |  |  |  |

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- Definition Carrying amount, attributable to parent and noncontrolling interests, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481687/323-10-50-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 28 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-28 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.27(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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- Definition Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-15 + Details
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