Dispositions, Real Property Held for Sale and Impairment (Tables)

12 Months Ended

Dec. 31, 2021

Discontinued Operations and Disposal Groups [Abstract]

Summary of Real Property Disposition Activity

The following is a summary of our real property disposition activity for the periods presented (in thousands):

	Year Ended
	December 31, 2021		December 31, 2020		December 31, 2019
Real estate dispositions:
Seniors Housing Operating	$	112,837	$	1,289,769	$	1,232,816
Triple-net	486,369		51,666		667,632
Outpatient Medical	229,660		1,755,864		482
Total dispositions	828,866		3,097,299		1,900,930
Gain (loss) on real estate dispositions, net	235,375		1,088,455		748,041
Net other assets (liabilities) disposed	6,081		114,274		1,679
Proceeds from real estate dispositions	$	1,070,322	$	4,300,028	$	2,650,650

Summary of Activity Related to Dispositions and Assets Held for Sale

The following represents the activity related to these properties for the periods presented (in thousands):

	Year Ended December 31,
	2021		2020		2019
Revenues:
Total revenues	$	63,114	$	303,791	$	827,961
Expenses:
Interest expense	1,479		11,241		23,186
Property operating expenses	8,490		163,800		403,010
Provision for depreciation	8,665		82,330		162,761
Total expenses	18,634		257,371		588,957
Income (loss) from real estate dispositions, net	$	44,480	$	46,420	$	239,004