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Debt - Narrative (Details) - USD ($) |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 28, 2022 | Oct. 06, 2021 | May 31, 2022 | Sep. 30, 2020 | Sep. 30, 2019 | Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | May 13, 2022 | Dec. 31, 2021 | Dec. 31, 2017 | Jul. 12, 2016
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding amount |  |  |  |  |  | $ 3,115,000,000 |  | $ 3,115,000,000 |  |  |  |  |  | $ 3,050,000,000 |  |
Loss on extinguishment of debt, net |  |  | $ 3,600,000 |  |  | 3,615,000 | $ 0 | 3,615,000 | $ 0 |  |  |  |  |  |  |
Deferred financing costs |  |  |  |  |  |  |  | 7,154,000 | 0 |  |  |  |  |  |  |
Healthcare Trust of America Holdings, LP (HTALP) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt, net |  |  |  |  |  | 3,615,000 | $ 0 | 3,615,000 | 0 |  |  |  |  |  |  |
Deferred financing costs |  |  |  |  |  |  |  | 7,154,000 | $ 0 |  |  |  |  |  |  |
Term Loan Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding amount |  |  | 1,125,000,000 |  |  |  |  |  |  |  |  |  | $ 1,125,000,000 |  |  |
Term Loan Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt financing cost |  |  | $ 1,800,000 |  |  |  |  |  |  |  |  |  | 1,800,000 |  |  |
Unsecured term loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, borrowing capacity |  | $ 300,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding amount |  |  |  |  |  | 500,000,000 |  | $ 500,000,000 |  |  |  |  |  | 500,000,000 |  |
Unsecured term loans | Base Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  |  |  |  | 0.50% |  |  |  |  |  |  |  |
Unsecured term loans | Fed Funds Effective Rate Overnight Index Swap Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  |  |  |  | 1.00% |  |  |  |  |  |  |  |
Unsecured term loans | SOFR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  |  |  |  | 0.10% |  |  |  |  |  |  |  |
Unsecured term loans | $300.0 Million Unsecured Term Loan due 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  |  |  |  | 0.95% |  |  |  |  |  |  |  |
Debt issuance costs |  |  |  |  |  | 1,800,000 |  | $ 1,800,000 |  |  |  |  |  |  |  |
Outstanding amount |  |  |  |  |  | $ 300,000,000 |  | $ 300,000,000 |  |  |  |  |  |  |  |
Weighted average interest rate with interest rate swap impact |  |  |  |  |  | 2.37% |  | 2.37% |  |  |  |  |  |  |  |
Unsecured term loans | $300.0 Million Unsecured Term Loan due 2023 | Healthcare Trust of America Holdings, LP (HTALP) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding amount |  |  |  |  |  | $ 300,000,000 |  | $ 300,000,000 |  |  |  |  |  |  |  |
Unsecured term loans | $300.0 Million Unsecured Term Loan due 2023 | LIBOR | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  |  |  |  | 0.80% |  |  |  |  |  |  |  |
Unsecured term loans | $300.0 Million Unsecured Term Loan due 2023 | LIBOR | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  |  |  |  | 1.60% |  |  |  |  |  |  |  |
Unsecured term loans | $200.0 Million Unsecured Term Loan due 2024 | Healthcare Trust of America Holdings, LP (HTALP) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  |  |  |  | 1.00% |  |  |  | 65.00% |  |  |  |
Outstanding amount |  |  |  |  |  | $ 200,000,000 |  | $ 200,000,000 |  |  |  |  |  |  |  |
Weighted average interest rate with interest rate swap impact |  |  |  |  |  | 2.32% |  | 2.32% |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  | $ 200,000,000.0 |  | $ 200,000,000.0 |  |  |  | $ 200,000,000 |  |  |  |
Unsecured term loans | $200.0 Million Unsecured Term Loan due 2024 | LIBOR | Minimum | Healthcare Trust of America Holdings, LP (HTALP) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  |  |  |  | 0.75% |  |  |  |  |  |  |  |
Unsecured term loans | $200.0 Million Unsecured Term Loan due 2024 | LIBOR | Maximum | Healthcare Trust of America Holdings, LP (HTALP) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  |  |  |  | 1.65% |  |  |  |  |  |  |  |
Unsecured term loans | Term Loan Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,125,000,000 |  |  |
Unsecured senior notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding amount |  |  |  |  |  | 2,550,000,000 |  | $ 2,550,000,000 |  |  |  |  |  | 2,550,000,000 |  |
Extinguishment of debt |  |  |  |  |  |  |  | 700,000,000 |  |  |  |  |  |  |  |
Loss on extinguishment of debt, net |  |  |  |  |  |  |  |  |  |  | $ 18,300,000 |  |  |  |  |
Unsecured senior notes | $600.0 Million Unsecured Senior Notes due 2026 | Healthcare Trust of America Holdings, LP (HTALP) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding amount |  |  |  |  |  | 600,000,000 |  | 600,000,000 |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  | 600,000,000.0 |  | 600,000,000.0 |  |  |  |  |  |  |  |
Debt instrument, stated interest rate |  |  |  |  | 3.50% |  |  |  |  |  |  |  |  |  |  |
Unsecured senior notes | $650.0 Million Unsecured Senior Notes | Healthcare Trust of America Holdings, LP (HTALP) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  | $ 650,000,000 | 650,000,000 |  | 650,000,000 |  |  |  |  |  |  |  |
Debt instrument, stated interest rate |  |  |  |  | 3.10% |  |  |  |  |  |  |  |  |  |  |
Debt instrument, percentage of principal amount received |  |  |  |  | 99.66% |  |  |  |  |  |  |  |  |  |  |
Debt instrument, effective interest rate |  |  |  |  | 3.14% |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of debt |  |  |  |  |  |  |  | 900,000,000 |  |  |  |  |  |  |  |
Unsecured senior notes | $250.0 Million Unsecured Senior Notes | Healthcare Trust of America Holdings, LP (HTALP) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from unsecured senior notes |  |  |  |  | $ 250,000,000 |  |  |  |  |  |  |  |  |  |  |
Debt instrument, percentage of principal amount received |  |  |  |  | 99.72% |  |  |  |  |  |  |  |  |  |  |
Debt instrument, effective interest rate |  |  |  |  | 3.53% |  |  |  |  |  |  |  |  |  |  |
Unsecured senior notes | $350.0 Million Unsecured Senior Notes | Healthcare Trust of America Holdings, LP (HTALP) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 350,000,000
Debt instrument, percentage of principal amount received |  |  |  |  | 103.66% |  |  |  |  |  |  |  |  |  |  |
Debt instrument, effective interest rate |  |  |  |  | 2.89% |  |  |  |  |  |  |  |  |  |  |
Unsecured senior notes | $500.0 Million Unsecured Senior Notes due 2027 | Healthcare Trust of America Holdings, LP (HTALP) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding amount |  |  |  |  |  | 500,000,000 |  | 500,000,000 |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  | 500,000,000.0 |  | 500,000,000.0 |  |  |  |  |  |  | $ 500,000,000 |
Debt instrument, stated interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.75% |
Debt instrument, percentage of principal amount received |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 99.49% |
Debt instrument, effective interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.81% |
Unsecured senior notes | $800.0 Million Unsecured Senior Notes due 2031 | Healthcare Trust of America Holdings, LP (HTALP) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  | 800,000,000 |  | 800,000,000 |  |  |  |  |  |  |  |
Proceeds from unsecured senior notes |  |  |  | $ 800,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate |  |  |  | 2.00% |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, percentage of principal amount received |  |  |  | 99.20% |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, effective interest rate |  |  |  | 2.09% |  |  |  |  |  |  |  |  |  |  |  |
Extinguishment of debt |  |  |  | $ 300,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt, net |  |  |  |  |  |  |  |  |  | $ 24,700,000 |  |  |  |  |  |
Deferred financing costs |  |  |  | $ 6,800,000 |  |  |  |  |  |  |  |  |  |  |  |
Unsecured revolving credit facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unsecured revolving credit facility |  |  |  |  |  | 65,000,000 |  | 65,000,000 |  |  |  |  |  | $ 0 |  |
Unsecured revolving credit facility | Healthcare Trust of America Holdings, LP (HTALP) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conditional maximum borrowing capacity |  |  |  |  |  | 2,050,000,000.00 |  | 2,050,000,000.00 |  |  |  |  |  |  |  |
Maximum borrowing capacity, conditional increase |  |  |  |  |  | 750,000,000 |  | $ 750,000,000 |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  |  |  |  | 0.85% |  |  |  |  |  |  |  |
Line of credit facility, commitment fee |  |  |  |  |  |  |  | 0.20% |  |  |  |  |  |  |  |
Debt issuance costs |  |  |  |  |  | 6,200,000 |  | $ 6,200,000 |  |  |  |  |  |  |  |
Unsecured revolving credit facility |  |  |  |  |  | $ 65,000,000 |  | $ 65,000,000 |  |  |  |  |  |  |  |
Unsecured revolving credit facility | Line of Credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, borrowing capacity |  | $ 1,000,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unsecured revolving credit facility | Line of Credit | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 0.80% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, commitment fee |  | 0.125% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unsecured revolving credit facility | Line of Credit | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 1.60% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, commitment fee |  | 0.30% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unsecured revolving credit facility | Line of Credit | LIBOR | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 0.725% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unsecured revolving credit facility | Line of Credit | LIBOR | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 1.40% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unsecured revolving credit facility | Line of Credit | Fed Funds Effective Rate Overnight Index Swap Rate | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 0.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unsecured revolving credit facility | Line of Credit | Fed Funds Effective Rate Overnight Index Swap Rate | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 0.60% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bridge Financing Facility | Line of Credit | Merger Agreement with Healthcare Realty Trust Incorporated |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, borrowing capacity | $ 1,700,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitment fees | $ 5,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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