Accounts Payable, Accrued Liabilities, and Other Liabilities (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
Payables and Accruals [Abstract]
Refundable entrance fees	$ 223,339	$ 236,563
Accrued construction costs	164,460	136,767
Accrued interest	57,186	76,040
Other accounts payable and accrued liabilities	301,244	275,972
Accounts payable, accrued liabilities, and other liabilities	746,229	725,342
Severance-related charges	$ 200	$ 4,000