Deferred Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Revenues [Abstract]
Non-refundable entrance fees	$ 652,173		$ 652,173		$ 615,723
Other deferred revenue	317,904		317,904		324,413
Deferred revenue	970,077		970,077		$ 940,136
Proceeds from nonrefundable entrance fees	37,000	$ 34,000	108,000	$ 96,000
Amortization of nonrefundable entrance fee	24,000	23,000	72,000	66,000
Amortization of other deferred charges	$ 13,000	$ 13,000	$ 37,000	$ 40,000