Lease Accounting - Additional Information (Detail)		3 Months Ended		12 Months Ended
		Mar. 31, 2022 USD ($) Property Subsidiary Lease Land	Mar. 31, 2021 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Leases Disclosure [Line Items]
Number of properties | Property		2
Lessee in connection with ground leases for land | Land		14
Right-of-use land assets		$ 11,486,000			$ 11,495,000
Ground lease liabilities		11,486,000			11,495,000
Aiken Regional Medical Center and Canyon Creek Behavioral Health
Leases Disclosure [Line Items]
Fair market value of real estate assets received		83,700,000			82,400,000
Monthly lease rent receivable		5,700,000
Aiken Regional Medical Center and Canyon Creek Behavioral Health | Forecast
Leases Disclosure [Line Items]
Lease payments expected				$ 5,500,000
Aiken Regional Medical Center
Leases Disclosure [Line Items]
Monthly lease rent receivable		3,900,000
Canyon Creek Behavioral Health
Leases Disclosure [Line Items]
Monthly lease rent receivable		1,800,000
Universal Health Services Inc
Leases Disclosure [Line Items]
Lease revenue	[1]	7,426,000	$ 7,132,000
Universal Health Services Inc | Base Rents
Leases Disclosure [Line Items]
Lease revenue		6,089,000	5,146,000
Universal Health Services Inc | Bonus Rents
Leases Disclosure [Line Items]
Lease revenue		$ 678,000	1,695,000
Universal Health Services Inc | Subsidiary
Leases Disclosure [Line Items]
Number of wholly-owned subsidiaries | Subsidiary		2
Asset Purchase and Sale Agreement | Forecast
Leases Disclosure [Line Items]
Lease payments expected				$ 5,500,000
Asset Purchase and Sale Agreement | Aiken Regional Medical Center and Canyon Creek Behavioral Health
Leases Disclosure [Line Items]
Monthly lease rent receivable		$ 5,700,000
Asset Purchase and Sale Agreement | Aiken Regional Medical Center
Leases Disclosure [Line Items]
Monthly lease rent receivable		3,900,000
Outstanding financing receivables		83,700,000			82,400,000
Asset Purchase and Sale Agreement | Canyon Creek Behavioral Health
Leases Disclosure [Line Items]
Monthly lease rent receivable		1,800,000
Asset Purchase and Sale Agreement | Universal Health Services Inc | Subsidiary
Leases Disclosure [Line Items]
Cash received for sale of real estate asset		$ 4,100,000
Asset Purchase and Sale Agreement | Universal Health Services Inc | Subsidiary | Aiken Regional Medical Center and Canyon Creek Behavioral Health
Leases Disclosure [Line Items]
Number of wholly-owned subsidiaries | Subsidiary		2
Fair market value of real estate assets received		$ 83,700,000
Fair market value of real estate asset sold		83,700,000
Asset Purchase and Sale Agreement | Universal Health Services Inc | Subsidiary | Aiken Regional Medical Center
Leases Disclosure [Line Items]
Fair market value of real estate assets received		57,700,000
Asset Purchase and Sale Agreement | Universal Health Services Inc | Subsidiary | Canyon Creek Behavioral Health
Leases Disclosure [Line Items]
Fair market value of real estate asset sold		26,000,000.0
Asset Purchase and Sale Agreement | Universal Health Services Inc | Subsidiary | Inland Valley Campus of Southwest Healthcare System
Leases Disclosure [Line Items]
Fair market value of real estate asset sold		$ 79,600,000
Kindred Chicago Central Hospital Central Chicago, Illinois
Leases Disclosure [Line Items]
Number of lease property | Lease		2
Wellington Regional Medical Center | Palm Beach, Florida
Leases Disclosure [Line Items]
Monthly lease rent receivable		$ 6,300,000
Lessee operating lease, existence of option to extend		true
Operating lease renewal term		5 years
Lease expiration date		Dec. 31, 2026
Percentage of annual rental increase on cumulative and compound basis		2.50%
Lease revenue		$ 1,700,000	1,300,000		5,500,000
Wellington Regional Medical Center | Base Rents | Palm Beach, Florida
Leases Disclosure [Line Items]
Lease revenue		757,000			3,000,000.0
Wellington Regional Medical Center | Bonus Rents | Palm Beach, Florida
Leases Disclosure [Line Items]
Lease revenue		568,000			2,500,000
Wellington Regional Medical Center | Universal Health Services Inc | Palm Beach, Florida
Leases Disclosure [Line Items]
Monthly lease rent receivable		$ 6,300,000
Lessee operating lease, existence of option to extend		true
Operating lease renewal term		5 years
Percentage of annual rental increase on cumulative and compound basis		2.50%
Lease revenue					5,500,000
Wellington Regional Medical Center | Universal Health Services Inc | Base Rents | Palm Beach, Florida
Leases Disclosure [Line Items]
Lease revenue					3,000,000.0
Wellington Regional Medical Center | Universal Health Services Inc | Bonus Rents | Palm Beach, Florida
Leases Disclosure [Line Items]
Lease revenue					2,500,000
Southwest Healthcare System Inland Valley Campus | Aiken Regional Medical Center and Canyon Creek Behavioral Health
Leases Disclosure [Line Items]
Lease revenue					4,500,000
Southwest Healthcare System Inland Valley Campus | Aiken Regional Medical Center and Canyon Creek Behavioral Health | Base Rents
Leases Disclosure [Line Items]
Lease revenue					2,600,000
Southwest Healthcare System Inland Valley Campus | Aiken Regional Medical Center and Canyon Creek Behavioral Health | Bonus Rents
Leases Disclosure [Line Items]
Lease revenue					1,900,000
Southwest Healthcare System Inland Valley Campus | Asset Purchase and Sale Agreement
Leases Disclosure [Line Items]
Lease revenue		$ 4,500,000
Southwest Healthcare System Inland Valley Campus | Asset Purchase and Sale Agreement | Base Rents
Leases Disclosure [Line Items]
Lease revenue		2,600,000
Southwest Healthcare System Inland Valley Campus | Asset Purchase and Sale Agreement | Bonus Rents
Leases Disclosure [Line Items]
Lease revenue		$ 1,900,000
PeaceHealth Medical Clinic Bellingham WA
Leases Disclosure [Line Items]
Operating lease renewal term		7 years
Lease revenue		$ 734,000	644,000
Extended Lease Expiration Date		Jan. 31, 2029
Number of Additional Lease Term | Lease		2
Remaining lease terms on ground leases		5 years
Chicago, Illinois
Leases Disclosure [Line Items]
Lease expiration date		Dec. 31, 2021
Lease revenue		$ 494,000	$ 390,000		$ 1,600,000
Evansville Rehabilitation Hospital Evansville, Indiana
Leases Disclosure [Line Items]
Lease expiration date		May 31, 2019
Estimate operating expenses, remainder of fiscal year		$ 1,900,000
Corpus Christi Corpus Christi Texas
Leases Disclosure [Line Items]
Lease expiration date		Jun. 01, 2019
Estimate operating expenses, remainder of fiscal year		$ 1,900,000

[1] Includes bonus rental on McAllen Medical Center, a UHS acute care hospital facility of $678 for the three-month period ended March 31, 2022 and includes bonus rental on three UHS acute care hospital facilities of $1,695 for the three-month period ended March 31, 2021