Real Estate and Other Activities - Prospect Medical Holdings Additional Information (Detail) $ in Thousands		1 Months Ended	3 Months Ended
		Aug. 31, 2019 USD ($) Hospital	Dec. 31, 2022 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Business Acquisition [Line Items]
Additional mortgage loan			$ 1,332,962		$ 5,350,239	$ 4,249,180
Carrying value of lease requiring residual value guarantee			110,000
Mortgage Loans [Member]
Business Acquisition [Line Items]
Additional mortgage loan	[1],[2]		159,735		$ 1,113,300	$ 176,840
Prospect [Member]
Business Acquisition [Line Items]
Purchase price of acquisition		$ 1,500,000
Term loan		$ 112,900
Impairment charge			280,000
Prospect [Member] | Pennsylvania
Business Acquisition [Line Items]
Carrying value of lease requiring residual value guarantee			170,000
Non-cash rent			112,000
Prospect [Member] | Pennsylvania | Maximum [Member]
Business Acquisition [Line Items]
Carrying value of lease requiring residual value guarantee			$ 250,000
Prospect [Member] | Mortgage Loans [Member]
Business Acquisition [Line Items]
Additional mortgage loan				$ 100,000
Acute Care Campus [Member] | Prospect [Member]
Business Acquisition [Line Items]
Number of facilities acquired | Hospital		14

[1] In the 2022 second quarter, we increased our mortgage loan to Prospect Medical Holdings, Inc. ("Prospect") that was originated in 2019 and that is secured by a first lien on a California hospital. The loan bears interest at a current market rate plus a component of additional interest upon repayment.

[2] The 2021 column includes an £800 million mortgage loan advanced to the Priory Group (“Priory”) in the first quarter of 2021 and converted to fee simple ownership of 35 properties in the second quarter of 2021 as described below. The 2020 column includes approximately $740 million of loans advanced to Steward in 2017 and exchanged for the fee simple real estate of two hospitals as described below, as well as approximately $100 million of loans advanced to Ernest Health, Inc. (“Ernest”) in 2012 and exchanged for the fee simple real estate of four hospitals as described below.