Leases - Narrative (Details)	1 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($) community lease	Aug. 31, 2024 USD ($) community	Sep. 30, 2024 USD ($) lease community	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) lease community	Sep. 30, 2023 USD ($)
Lessee, Lease, Description [Line Items]
Operating and financing leases, number of communities | community	277		277		277
Number of communities leased | lease	227		227		227
Financing leases, number of communities | lease	50		50		50
Operating lease, impairment			$ 0		$ 0
Omega HelathCare Investors, Inc.,
Lessee, Lease, Description [Line Items]
Number of communities leased | community		24
Maximum capital expenditures funded by lessor		$ 80,000,000
Capital expenditures funded by lessor, subject to rent adjustments, reimbursement threshold		30,000,000.0
Capital expenditures funded by lessor, subject to rent adjustments disallowed, reimbursement threshold		$ 50,000,000.0
Operating lease, lessee, capital expenditures, reimbursement percentage		0.095
Operating lease, liability, period increase (decrease) due to modification		$ 253,400,000
Operating lease, right-of-use assets, period increase (decrease) due to modification		$ 253,400,000
Welltower Inc. and JV
Lessee, Lease, Description [Line Items]
Number of communities acquired | community	11
Purchase price	$ 300,000,000
Annualized cash rent payments	22,300,000
Welltower Inc. and JV | 4.92% Fixed Rate Agency Debt
Lessee, Lease, Description [Line Items]
Purchase price	$ 194,500,000
Business combination consideration transferred, fixed agency rate	0.0492
Welltower Inc.
Lessee, Lease, Description [Line Items]
Operating lease, liability, period increase (decrease) due to modification	$ 17,700,000
Operating lease, right-of-use assets, period increase (decrease) due to modification	$ 17,700,000
Number of communities acquired | community	5
Annualized cash rent payments	$ 13,400,000
Payments to acquire lease	$ 175,000,000
Number of communities recognized | community	2
Number of communities accounted for as failed sale-leaseback transaction | community	3
Diversified Healthcare Trust
Lessee, Lease, Description [Line Items]
Number of communities acquired | community	25
Annualized cash rent payments	$ 10,200,000
Payments to acquire lease	$ 135,000,000
Nonrecurring
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets				$ 3,800,000		$ 3,800,000
Minimum
Lessee, Lease, Description [Line Items]
Finance and operating lease, renewal term (in years)					5 years
Maximum
Lessee, Lease, Description [Line Items]
Finance and operating lease, renewal term (in years)					20 years