Accounts Payable, Accrued Liabilities, and Other Liabilities (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Payables and Accruals [Abstract]
Refundable entrance fees	$ 241,667	$ 251,874
Accrued construction costs	120,543	105,572
Accrued interest	57,928	59,492
Other accounts payable and accrued liabilities	329,743	240,258
Accounts payable, accrued liabilities, and other liabilities	749,881	657,196
Severance-related charges	$ 5,000	$ 8,000