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v3.24.3

Debt - Narrative (Details) |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Oct. 03, 2024 USD ($) day $ / shares | Sep. 30, 2024 USD ($) community renewal_option | Sep. 30, 2024 USD ($) community renewal_option | Feb. 29, 2024 USD ($) renewal_option community | Dec. 31, 2024 USD ($) | Sep. 30, 2024 USD ($) community renewal_option | Sep. 30, 2023 USD ($) | Sep. 30, 2024 USD ($) community renewal_option | Sep. 30, 2023 USD ($) | Dec. 31, 2023 USD ($) | Oct. 01, 2021 USD ($)
Credit Facilities [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total long-term debt |  | $ 3,706,022,000 | $ 3,706,022,000 |  |  | $ 3,706,022,000 |  | $ 3,706,022,000 |  | $ 3,697,313,000 |
Loss on extinguishment of debt |  |  |  |  |  | $ (2,267,000) | $ 0 | $ (2,267,000) | $ 0 |  |
First Mortgage |  |  |  |  |  |  |  |  |  |  |
Credit Facilities [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of renewal options | renewal_option |  |  |  | 2 |  |  |  |  |  |  |
Term of renewal option (in years) |  |  |  | 1 year |  |  |  |  |  |  |
Number of communities securing debt | community |  | 16 | 16 | 11 |  | 16 |  | 16 |  |  |
Mortgage Debt Due 2025 |  |  |  |  |  |  |  |  |  |  |
Credit Facilities [Line Items] |  |  |  |  |  |  |  |  |  |  |
Outstanding mortgage debt |  |  | $ 197,100,000 |  |  |  |  |  |  |  |
Mortgages |  |  |  |  |  |  |  |  |  |  |
Credit Facilities [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt face amount |  | $ 100,000,000 | $ 100,000,000 |  |  | $ 100,000,000 |  | $ 100,000,000 |  |  |
Number of renewal options | renewal_option |  | 2 | 2 |  |  | 2 |  | 2 |  |  |
Term of renewal option (in years) |  |  |  |  |  | 1 year |  |  |  |  |
Percentage of total debt (as percent) |  | 91.50% | 91.50% |  |  | 91.50% |  | 91.50% |  |  |
Mortgage debt |  | $ 3,400,000,000 | $ 3,400,000,000 |  |  | $ 3,400,000,000 |  | $ 3,400,000,000 |  |  |
Total long-term debt |  | 2,067,155,000 | 2,067,155,000 |  |  | 2,067,155,000 |  | 2,067,155,000 |  | 1,953,414,000 |
Mortgages | First Mortgage |  |  |  |  |  |  |  |  |  |  |
Credit Facilities [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt face amount |  | $ 182,500,000 | $ 182,500,000 | $ 50,000,000 |  | $ 182,500,000 |  | $ 182,500,000 |  |  |
Debt instrument, variable interest rate, type [extensible enumeration] |  |  |  | Secured Overnight Financing Rate (SOFR) [Member] |  |  |  |  |  |  |
Interest rate, stated percentage |  | 5.67% | 5.67% |  |  | 5.67% |  | 5.67% |  |  |
Term of interest |  |  | 2 years |  |  |  |  |  |  |  |
Mortgages | First Mortgage | Variable Rate Component One |  |  |  |  |  |  |  |  |  |  |
Credit Facilities [Line Items] |  |  |  |  |  |  |  |  |  |  |
Applicable margin (as a percent) |  |  |  | 3.50% |  |  |  |  |  |  |
Line of Credit | Fifth Amended and Restated Credit Agreement | Letter of Credit Sublimit |  |  |  |  |  |  |  |  |  |  |
Credit Facilities [Line Items] |  |  |  |  |  |  |  |  |  |  |
Letters of credit issued |  | $ 58,500,000 | $ 58,500,000 |  |  | $ 58,500,000 |  | $ 58,500,000 |  |  |
Line of Credit | Fifth Amended and Restated Credit Agreement | Letter of Credit |  |  |  |  |  |  |  |  |  |  |
Credit Facilities [Line Items] |  |  |  |  |  |  |  |  |  |  |
Letters of credit issued |  | 15,700,000 | 15,700,000 |  |  | 15,700,000 |  | 15,700,000 |  |  |
Credit facility, maximum borrowing capacity |  | 17,000,000 | 17,000,000 |  |  | 17,000,000 |  | 17,000,000 |  |  |
Line of Credit | Credit Agreement With Capital One, National Association | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |
Credit Facilities [Line Items] |  |  |  |  |  |  |  |  |  |  |
Credit facility, maximum borrowing capacity |  | $ 100,000,000 | $ 100,000,000 |  |  | $ 100,000,000 |  | $ 100,000,000 |  |  |
Convertible Debt | Convertible Senior Notes Due 2026 |  |  |  |  |  |  |  |  |  |  |
Credit Facilities [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt face amount |  |  |  |  |  |  |  |  |  |  | $ 230,000,000
Interest rate, stated percentage |  | 2.00% | 2.00% |  |  | 2.00% |  | 2.00% |  |  | 2.00%
Total long-term debt |  | $ 230,000,000 | $ 230,000,000 |  |  | $ 230,000,000 |  | $ 230,000,000 |  | $ 230,000,000 |
Convertible Debt | Convertible Senior Notes Due 2026 | Subsequent Event |  |  |  |  |  |  |  |  |  |  |
Credit Facilities [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount exchanged | $ 206,700,000 |  |  |  |  |  |  |  |  |  |
Total long-term debt | 23,300,000 |  |  |  |  |  |  |  |  |  |
Convertible Debt | Convertible Senior Notes Due 2029 |  |  |  |  |  |  |  |  |  |  |
Credit Facilities [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt instrument, convertible, conversion ratio |  | 0.1111111 |  |  |  |  |  |  |  |  |
Convertible Debt | Convertible Senior Notes Due 2029 | Subsequent Event |  |  |  |  |  |  |  |  |  |  |
Credit Facilities [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt face amount | $ 369,400,000 |  |  |  |  |  |  |  |  |  |
Interest rate, stated percentage | 3.50% |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount exchanged | $ 219,400,000 |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of debt | 150,000,000 |  |  |  |  |  |  |  |  |  |
Debt instrument, indebtedness aggregate principal amount maximum | $ 500,000,000 |  |  |  |  |  |  |  |  |  |
Threshold trading days | day | 20 |  |  |  |  |  |  |  |  |  |
Threshold consecutive trading days | day | 30 |  |  |  |  |  |  |  |  |  |
Threshold percentage of stock price trigger | 130.00% |  |  |  |  |  |  |  |  |  |
Threshold business days | day | 5 |  |  |  |  |  |  |  |  |  |
Threshold consecutive trading days, measurement period | day | 10 |  |  |  |  |  |  |  |  |  |
Percentage of product of the last reported sale price of the common stock and the conversion rate (as a percent) | 98.00% |  |  |  |  |  |  |  |  |  |
Percentage of common stock in excess shares | 0.199 |  |  |  |  |  |  |  |  |  |
Debt instrument, convertible, conversion price (in dollars per share) | $ / shares | $ 9.00 |  |  |  |  |  |  |  |  |  |
Cash proceeds | $ 135,000,000 |  |  |  |  |  |  |  |  |  |
Convertible Debt | Convertible Senior Notes Due 2029 | Subsequent Event | Forecast |  |  |  |  |  |  |  |  |  |  |
Credit Facilities [Line Items] |  |  |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  | $ 15,000,000.0 |  |  |  |  |  |

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