Real Estate Investments - Development and Improvement Projects (Details) - Real Estate Development Commitments - Real Estate Investment Completed Projects $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) item property	Dec. 31, 2019 USD ($) property item	Dec. 31, 2018 USD ($) item property
Completed development and improvement projects
Number of Properties | property			1
Number of Beds/Units | item			66
Total Investment | $			$ 14,668
Developments
Completed development and improvement projects
Number of Properties | property	2	2
Number of Beds/Units | item	168	253
Total Investment | $	$ 35,034	$ 46,973
ALF and MC | Developments | Oregon
Completed development and improvement projects
Number of Properties | property	1
Number of Beds/Units | item	78
Total Investment | $	$ 18,447
SNF | Developments | Missouri
Completed development and improvement projects
Number of Properties | property	1
Number of Beds/Units | item	90
Total Investment | $	$ 16,587
SNF | Developments | Kentucky
Completed development and improvement projects
Number of Properties | property		1
Number of Beds/Units | item		143
Total Investment | $		$ 24,974
MC Units | Developments | Illinois
Completed development and improvement projects
Number of Properties | property			1
Number of Beds/Units | item			66
Total Investment | $			$ 14,668
ILF/ALF/MC | Developments | Wisconsin
Completed development and improvement projects
Number of Properties | property		1
Number of Beds/Units | item		110
Total Investment | $		$ 21,999