Real Estate and Other Activities - Net Assets Acquired (Detail) - USD ($) $ in Thousands		Jun. 30, 2022	Jun. 30, 2021
Business Acquisition [Line Items]
Total assets acquired		$ 946,243	$ 3,137,451
Liabilities assumed		(25,727)	(65,411)
Loans repaid			(1,090,400)
Total net assets acquired		946,243	2,047,051
Land and Land Improvements [Member]
Business Acquisition [Line Items]
Total assets acquired		34,204	345,039
Building [Member]
Business Acquisition [Line Items]
Total assets acquired		290,256	825,322
Intangible Lease Assets [Member]
Business Acquisition [Line Items]
Total assets acquired		16,949	96,455
Mortgage Loans [Member]
Business Acquisition [Line Items]
Total assets acquired	[1],[2]	100,000	1,090,400
Investments in Unconsolidated Real Estate Joint Ventures [Member]
Business Acquisition [Line Items]
Total assets acquired		399,456
Investments In Unconsolidated Operating Entities [Member]
Business Acquisition [Line Items]
Total assets acquired		$ 131,105	$ 845,646

[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, which is anticipated during the fourth quarter.

[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.