Accounting Policies and Related Matters	3 Months Ended
Accounting Policies and Related Matters	Mar. 31, 2022
Accounting Policies [Abstract]
Accounting Policies and Related Matters	Accounting Policies and Related Matters Basis of Presentation The accompanying unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) for interim financial information and with instructions to Quarterly Report on Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments (such as normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three months ended March 31, 2022 are not necessarily an indication of the results that may be expected for the year ending December 31, 2022. For further information, refer to the financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2021. Impact of COVID-19 Pandemic The extent to which the COVID-19 pandemic impacts our operations and those of our operators and tenants will depend on future developments, which are highly uncertain and cannot be predicted with confidence, including the scope, severity and duration of the pandemic, the actions taken to contain the pandemic or mitigate its impact, the direct and indirect economic effects of the pandemic and containment measures, the impact of new variants, the effectiveness of vaccines, the overall pace of recovery, among others. The COVID-19 pandemic could have material and adverse effects on our financial condition, results of operations and cash flows in the future. Our Seniors Housing Operating revenues are dependent on occupancy, which has steadily increased in recent months. As of March 31, 2022, nearly all communities are open for new admissions and allowing visitors, in-person tours and communal dining and activities. Average occupancy increased from 73.0% to 77.5% for the three months ended March 31, 2022 and 2021, respectively. Occupancy metrics represent occupancy at our share for 543 properties in operation as of December 31, 2020, including unconsolidated properties but excluding acquisitions, executed dispositions, development conversions and four closed properties. Property-level operating expenses associated with the COVID-19 pandemic related to our Seniors Housing Operating portfolio totaled $11,003,000 and $27,976,000 for the three months ended March 31, 2022 and 2021, respectively. These expenses were incurred as a result of public health measures and other regulations affecting our properties, as well as additional health and safety measures adopted by us and our operators related to the COVID-19 pandemic, including increases in labor and property cleaning expenses and expenditures related to our efforts to procure personal protective equipment and supplies, net of reimbursements. We expect total Seniors Housing Operating expenses to remain elevated during the pandemic and potentially beyond as these additional health and safety measures become standard practice. In 2021 and 2022, we received government grants under the CARES Act primarily to cover increased expenses and lost revenue during the COVID-19 pandemic, as well as under similar programs in the U.K. and Canada. For the three months ended March 31, 2022 and 2021, we recognized $5,760,000 and $49,180,000, respectively, of government grant income as a reduction to property operating expenses in our Consolidated Statements of Comprehensive Income. Our Triple-net operators have experienced similar occupancy declines and operating costs as our Seniors Housing Operating properties. Additionally, long-term/post-acute care facilities are generally experiencing a higher degree of occupancy declines. These factors may continue to impact the ability of our Triple-net operators to make contractual rent payments to us in the future. Many of our Triple-net operators received funds under the CARES Act Paycheck Protection Program and Provider Relief Fund. New Accounting Standards •In August 2020, the FASB issued ASU 2020-06, “Debt-Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging-Contracts in Entity’s Own Equity (Subtopic 815-40) Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity.” This ASU simplifies accounting for convertible instruments and removes certain settlement conditions that are required for equity contracts to qualify for the derivative scope exception. This ASU also simplifies the diluted earnings per share calculation in certain areas and provides updated disclosure requirements. The ASU is effective for public business entities beginning after December 15, 2021 including interim periods within those fiscal years. The adoption of this standard did not have a significant impact on our consolidated financial statements. •In March 2020, the FASB issued an amendment to the reference rate reform standard, which provides the option for a limited period of time to ease the potential burden in accounting for, or recognizing the effects of, reference rate reform on contract modifications and hedge accounting. An example of such reform is the expected market transition from the London Interbank Offered Rate ("LIBOR") and other interbank offered rates to alternative reference rates. Entities that make this optional expedient election would not have to remeasure the contracts at the modification date or reassess the accounting treatment if certain criteria are met and would continue applying hedge accounting for relationships affected by reference rate reform. The new standard was effective for us upon issuance and elections can be made through December 31, 2022. We are currently evaluating our options with regards to existing contracts and hedging relationships and the impact of adopting this update on our consolidated financial statements.