Deferred Revenue - Schedule of Deferred Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues [Abstract]
Nonrefundable entrance fees	$ 562,026	$ 518,573
Other deferred revenue	343,607	325,503
Deferred revenue	905,633	844,076
Proceeds from nonrefundable entrance fees	127,000	101,000
Amortization of nonrefundable entrance fee	83,000	79,000	$ 76,000
Amortization of other deferred charges	$ 68,000	$ 44,000	$ 39,000