Real Estate and Lending Activities - Assets Acquired (Detail) - USD ($) $ in Thousands		Jun. 30, 2019	Jun. 30, 2018
Business Acquisition [Line Items]
Total assets acquired		$ 1,402,315	$ 273,728
Loans repaid	[1]		(259,378)
Total net assets acquired		1,402,315	14,350
Land and Land Improvements [Member]
Business Acquisition [Line Items]
Total assets acquired		242,682	16,121
Building [Member]
Business Acquisition [Line Items]
Total assets acquired		784,184	232,409
Intangible Lease Assets - Subject to Amortization [Member]
Business Acquisition [Line Items]
Total assets acquired		91,050	$ 25,198
Equity Investments [Member]
Business Acquisition [Line Items]
Total assets acquired		$ 284,399

[1] Includes $259.4 million of loans advanced to Steward Health Care System LLC (“Steward”) in 2017 and repaid in 2018 as described more fully below.