Real Property Acquisitions and Development - Construction Activity (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting Information [Line Items]
Total development projects	$ 303,180	$ 134,562
Expansion projects	26,125	0
Total construction in progress conversions	329,305	134,562
Seniors Housing Operating
Segment Reporting Information [Line Items]
Total development projects	140,865	134,562
Triple-net
Segment Reporting Information [Line Items]
Total development projects	141,142	0
Outpatient Medical
Segment Reporting Information [Line Items]
Total development projects	$ 21,173	$ 0