Summary of Significant Accounting Policies - Accounts Receivable and Deferred Revenue (Details) - Resident Fees and Services [Member] - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2026	Dec. 31, 2025
Accounts Receivable, Net - Resident Fees and Services
Accounts Receivable, Net - Resident Fees and Services	$ 202,607	$ 180,542
Increase (decrease)	22,065
Deferred Revenue - Resident fees and Services
Deferred Revenue	35,231	34,464
Increase	767
Private and Other Payors [Member]
Accounts Receivable, Net - Resident Fees and Services
Accounts Receivable, Net - Resident Fees and Services	59,790	59,630
Increase (decrease)	160
Medicare [Member]
Accounts Receivable, Net - Resident Fees and Services
Accounts Receivable, Net - Resident Fees and Services	36,426	28,300
Increase (decrease)	8,126
Medicaid [Member]
Accounts Receivable, Net - Resident Fees and Services
Accounts Receivable, Net - Resident Fees and Services	62,607	44,888
Increase (decrease)	17,719
Medicare Advantage [Member]
Accounts Receivable, Net - Resident Fees and Services
Accounts Receivable, Net - Resident Fees and Services	43,784	$ 47,724
Increase (decrease)	$ (3,940)