Leases - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) building	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Lessee, Lease, Description [Line Items]
Pricing period	30 years
Number of buildings subleased | building	7
Straight line rent receivables		$ 49,241	$ 146,508
Rental income	$ 1,451,786	1,374,695	1,443,360
Seniors Housing Operating
Lessee, Lease, Description [Line Items]
Rental income	$ 410,749	$ 194,078	58,053
HC-One Group (5)
Lessee, Lease, Description [Line Items]
Straight line rent receivables			$ 91,025
Minimum
Lessee, Lease, Description [Line Items]
Lease term extension period	1 year
Maximum
Lessee, Lease, Description [Line Items]
Lease term extension period	25 years