Real Estate Investments - Schedule of Disposal Groups (Details) $ in Thousands	1 Months Ended													12 Months Ended
	Apr. 30, 2021 USD ($) ft² building	Feb. 28, 2021 USD ($) ft² building	Dec. 31, 2020 USD ($) ft² building property unit	Nov. 30, 2020 USD ($) building unit	Oct. 31, 2020 USD ($) building unit	Sep. 30, 2020 USD ($) ft² building	Aug. 31, 2020 USD ($) building unit	Jul. 31, 2020 USD ($) ft² building	Jun. 30, 2020 USD ($) ft² building	Apr. 30, 2020 USD ($) unit building	Mar. 31, 2020 USD ($) ft² building	Feb. 29, 2020 USD ($)	Jan. 31, 2020 USD ($) ft² building	Dec. 31, 2021 USD ($) building	Dec. 31, 2020 USD ($) ft² building property unit	Dec. 31, 2022 property	Feb. 28, 2020 ft² building
Real Estate
Number of Properties | property																379
Disposal Group, Disposed of by Sale, Not Discontinued Operations
Real Estate
Number of Properties | building			27											5	27
Sales Price														$ 104,500	$ 152,893
Gain (loss) on Sale														$ 30,638	$ 6,262
Medical Office
Real Estate
Number of Properties | property			7												7
Medical Office | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Real Estate
Number of Properties | property			4												4
Medical Office | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Pennsylvania
Real Estate
Number of Properties | building		1															1
Area of real estate properties (in square feet) | ft²		92,000															50,000
Sales Price		$ 9,000										$ 2,900
Gain (loss) on Sale		$ (122)										$ 0
Medical Office | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Louisiana
Real Estate
Number of Properties | building													6
Area of real estate properties (in square feet) | ft²													40,575
Sales Price													$ 5,925
Gain (loss) on Sale													$ (81)
Medical Office | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Texas
Real Estate
Number of Properties | building								1			1
Area of real estate properties (in square feet) | ft²								6,849			70,229
Sales Price								$ 2,072			$ 8,779
Gain (loss) on Sale								$ (30)			$ 2,863
Medical Office | Disposal Group, Disposed of by Sale, Not Discontinued Operations | South Carolina
Real Estate
Number of Properties | building									1
Area of real estate properties (in square feet) | ft²									49,242
Sales Price									$ 3,550
Gain (loss) on Sale									$ 0
Medical Office | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Connecticut
Real Estate
Number of Properties | building								1
Area of real estate properties (in square feet) | ft²								32,162
Sales Price								$ 625
Gain (loss) on Sale								$ (25)
Medical Office | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Mississippi
Real Estate
Number of Properties | building						1
Area of real estate properties (in square feet) | ft²						78,747
Sales Price						$ 7,250
Gain (loss) on Sale						$ (114)
Medical Office | Disposal Group, Disposed of by Sale, Not Discontinued Operations | New York
Real Estate
Number of Properties | building			1												1
Area of real estate properties (in square feet) | ft²			64,060												64,060
Sales Price			$ 3,875
Gain (loss) on Sale			$ (273)
Medical Office and Life Science | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Florida
Real Estate
Number of Properties | building	4
Area of real estate properties (in square feet) | ft²	263,656
Sales Price	$ 95,500
Gain (loss) on Sale	$ 30,760
IL / AL | Disposal Group, Disposed of by Sale, Not Discontinued Operations | California
Real Estate
Number of Properties | building										3
Number of units in real estate property | unit										599
Sales Price										$ 47,000
Gain (loss) on Sale										$ (256)
AL | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Mississippi
Real Estate
Number of Properties | building							2
Number of units in real estate property | unit							116
Sales Price							$ 2,500
Gain (loss) on Sale							$ (42)
AL | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Various
Real Estate
Number of Properties | building					3
Number of units in real estate property | unit					239
Sales Price					$ 46,000
Gain (loss) on Sale					$ 4,292
AL | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Nebraska
Real Estate
Number of Properties | building				1
Number of units in real estate property | unit				131
Sales Price				$ 3,000
Gain (loss) on Sale				$ (26)
Life Science | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Ohio
Real Estate
Number of Properties | building			2												2
Area of real estate properties (in square feet) | ft²			232,016												232,016
Sales Price			$ 7,917
Gain (loss) on Sale			$ 257
SNF / AL | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Wisconsin
Real Estate
Number of Properties | building			3												3
Number of units in real estate property | unit			537												537
Sales Price			$ 11,500
Gain (loss) on Sale			$ (303)