Accounts Payable, Accrued Liabilities, and Other Liabilities (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Payables and Accruals [Abstract]
Refundable entrance fees	$ 257,624	$ 268,972
Accrued construction costs	142,826	178,626
Accrued interest	59,641	59,291
Other accounts payable and accrued liabilities	222,673	265,596
Accounts payable, accrued liabilities, and other liabilities	682,764	772,485
Severance-related charges	$ 11,000	$ 15,000