Deferred Revenue (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2024 |
Jun. 30, 2023 |
Jun. 30, 2024 |
Jun. 30, 2023 |
Dec. 31, 2023 |
|
| Revenues [Abstract] | |||||
| Nonrefundable entrance fees | $ 581,530 | $ 581,530 | $ 562,026 | ||
| Other deferred revenue | 326,322 | 326,322 | 343,607 | ||
| Deferred revenue | 907,852 | 907,852 | $ 905,633 | ||
| Proceeds from nonrefundable entrance fees | 34,000 | $ 31,000 | 62,000 | $ 60,000 | |
| Amortization of nonrefundable entrance fee | 21,000 | 20,000 | 43,000 | 40,000 | |
| Amortization of other deferred charges | $ 13,000 | $ 18,000 | $ 27,000 | $ 31,000 | |