Real Estate and Other Activities - Net Assets Acquired (Detail) - USD ($) $ in Thousands		Mar. 31, 2024	Mar. 31, 2023
Business Acquisition [Line Items]
Total assets acquired		$ 0	$ 72,900
Loans repaid	[1]		(22,900)
Total net assets acquired		0	50,000
Land and Land Improvements [Member]
Business Acquisition [Line Items]
Total assets acquired		0	9,313
Building [Member]
Business Acquisition [Line Items]
Total assets acquired		0	11,652
Intangible Lease Assets [Member]
Business Acquisition [Line Items]
Total assets acquired		0	1,935
Investments In Unconsolidated Operating Entities [Member]
Business Acquisition [Line Items]
Total assets acquired		$ 0	$ 50,000

[1] The 2023 column includes a $23 million mortgage loan that was converted to fee simple ownership of one property as described under Lifepoint Transaction below.