Real Estate and Lending Activities - Net Assets Acquired (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Business Acquisition [Line Items]
Liabilities assumed	$ (134,203)
Total	2,226,302	$ 1,402,315
Land and Land Improvements [Member]
Business Acquisition [Line Items]
Total assets acquired	265,991	242,682
Building [Member]
Business Acquisition [Line Items]
Total assets acquired	1,608,771	784,184
Intangible Lease Assets - Subject to Amortization [Member]
Business Acquisition [Line Items]
Total assets acquired	231,774	91,050
Mortgage Loans [Member]
Business Acquisition [Line Items]
Total assets acquired	47,641
Equity Investments [Member]
Business Acquisition [Line Items]
Total assets acquired		$ 284,399
Other Assets [Member]
Business Acquisition [Line Items]
Total assets acquired	1,328
Other Loans [Member]
Business Acquisition [Line Items]
Total assets acquired	$ 205,000