Property Portfolio - Additional Information (Details)

v3.20.1

Property Portfolio - Additional Information (Details)																														1 Months Ended		12 Months Ended
	Dec. 17, 2019 USD ($)	Nov. 15, 2019 USD ($)	Oct. 31, 2019 USD ($)	Oct. 25, 2019 USD ($)	Oct. 01, 2019 USD ($)	Sep. 26, 2019 USD ($)	Aug. 23, 2019 USD ($)	Aug. 14, 2019 USD ($)	Aug. 06, 2019 USD ($)	Aug. 05, 2019 USD ($)	Aug. 01, 2019 USD ($)	Jul. 12, 2019 USD ($)	Apr. 15, 2019 USD ($)	Mar. 19, 2019 USD ($)	Feb. 28, 2019 USD ($)	Nov. 30, 2018 USD ($)	Nov. 16, 2018 USD ($) item	Nov. 16, 2018 USD ($)	Oct. 30, 2018 USD ($)	Oct. 12, 2018 USD ($) item	Oct. 12, 2018 USD ($)	Aug. 03, 2018 USD ($) item	Aug. 03, 2018 USD ($)	Jul. 03, 2018 USD ($)	Apr. 19, 2018 USD ($)	Mar. 22, 2018 USD ($)	Feb. 23, 2018 item	Feb. 09, 2018 USD ($) item	Jan. 24, 2018 USD ($) item	Dec. 20, 2018 USD ($)	Mar. 22, 2018 USD ($)	Dec. 31, 2019 USD ($) property	Dec. 31, 2018 USD ($) property item	Dec. 31, 2017 USD ($)
Property, Plant and Equipment [Line Items]
Number of Properties Acquired | property																																18	14
Depreciation, Total																																$ 19,066,000	$ 13,644,000	$ 7,929,000
Property, Plant and Equipment, Additions																																257,979,000	200,680,000
Payments for (Proceeds from) Productive Assets																																254,985,000	180,837,000	$ 252,220,000
Tenant Improvement Allowances Receivable																																18,000,000	17,000,000
Capital Lease Obligations, Noncurrent																																$ 11,000,000	$ 9,000,000
Lessor, Operating Lease, Renewal Term																2 years 6 months																	2 years 6 months
Lessor, Operating Lease, Term of Contract																																7 years
Operating Lease, Weighted Average Remaining Lease Term																																24 years
Number of Acquisition																																	$ 14
Great Bend Regional Hospital [Member]
Property, Plant and Equipment [Line Items]
Disposal Group, Including Discontinued Operation, Consideration																														$ 32,500,000
Gain (Loss) on Disposition of Assets																														7,700,000
Proceeds from Divestiture of Businesses																														$ 31,600,000
Lease Intangibles Asset [Member]
Property, Plant and Equipment [Line Items]
Finite-Lived Intangible Asset, Useful Life																																6 years 8 months 12 days
Lease Intangibles Liability [Member]
Property, Plant and Equipment [Line Items]
Finite-Lived Intangible Asset, Useful Life																																6 years 1 month 28 days
Moline Silvis Facilities[Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions																													$ 6,900,000
Fremont Facility [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions																												$ 8,500,000
Zachary Facility [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions															$ 4,600,000
Lessor, Operating Lease, Term of Contract															46 years
Gilbert And Chandler Facility [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions														$ 16,300,000
Operating Lease, Weighted Average Remaining Lease Term														10 years 6 months
Moline Facility [Member]
Property, Plant and Equipment [Line Items]
Number of Renewal Options Allowed | item																													12				12
Lessor, Operating Lease, Renewal Term																													5 years			20 years	10 years
Operating Lease, Weighted Average Remaining Lease Term																													10 years
Fresenius Medical Care Quad Cities [Member]
Property, Plant and Equipment [Line Items]
Number of Renewal Options Allowed | item																													3
Lessor, Operating Lease, Renewal Term																													5 years
Operating Lease, Weighted Average Remaining Lease Term																													13 years
Quad Cities Nephrology Associates [Member]
Property, Plant and Equipment [Line Items]
Number of Renewal Options Allowed | item																													3
Lessor, Operating Lease, Renewal Term																													5 years
Operating Lease, Weighted Average Remaining Lease Term																													15 years
Silvis facility [Member]
Property, Plant and Equipment [Line Items]
Operating Lease, Weighted Average Remaining Lease Term																													67 years				67 years
Fresenius [Member]
Property, Plant and Equipment [Line Items]
Operating Lease, Weighted Average Remaining Lease Term																													13 years
Orlando Facilities [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions																										$ 16,400,000					$ 16,400,000
Lessor, Operating Lease, Renewal Term																										10 years					10 years
Belpre Portfolio [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions																									$ 64,100,000
Operating Lease, Weighted Average Remaining Lease Term																									11 years 4 months 6 days
McAllen [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions																								$ 5,400,000
Lessor, Operating Lease, Term of Contract																								11 years
Belpre Facility [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions																																	$ 64,683,000
IRF Portfolio [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions													$ 94,600,000
Operating Lease, Weighted Average Remaining Lease Term													8 years 3 months 18 days
San Marcos [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions												$ 12,000,000																				$ 11,974,000
Operating Lease, Weighted Average Remaining Lease Term												8 years
Lansing [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions											$ 11,100,000																					11,368,000
Operating Lease, Weighted Average Remaining Lease Term											8 years 6 months
Bannockburn [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions										$ 6,800,000																						6,977,000
Operating Lease, Weighted Average Remaining Lease Term										6 years 3 months 18 days
Aurora [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions									$ 12,600,000																							12,557,000
Operating Lease, Weighted Average Remaining Lease Term									6 years
Livonia [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions								$ 10,400,000																								10,592,000
Operating Lease, Weighted Average Remaining Lease Term								3 years 2 months 12 days
Gilbert [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions							$ 5,600,000																									5,592,000
Operating Lease, Weighted Average Remaining Lease Term							10 years
Morgantown [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions						$ 8,000,000																										7,950,000
Operating Lease, Weighted Average Remaining Lease Term						10 years
Beaumont [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions					$ 33,700,000																											33,739,000
Operating Lease, Weighted Average Remaining Lease Term					10 years
Bastrop [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions				$ 12,100,000																												12,065,000
Operating Lease, Weighted Average Remaining Lease Term				5 years
Panama City [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions			$ 13,000,000																													12,976,000
Operating Lease, Weighted Average Remaining Lease Term			15 years
Jacksonville [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions		$ 8,900,000																														8,869,000
Operating Lease, Weighted Average Remaining Lease Term		15 years
Greenwood [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions	$ 5,800,000																															$ 5,848,000
Operating Lease, Weighted Average Remaining Lease Term	13 years
Derby [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions																						$ 3,600,000	$ 3,600,000										3,604,000
Number of Renewal Options Allowed | item																						1
Lessor, Operating Lease, Renewal Term																						5 years	5 years
Operating Lease, Weighted Average Remaining Lease Term																						9 years	9 years
Bountiful Facility [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions																				$ 4,900,000	$ 4,900,000												4,905,000
Number of Renewal Options Allowed | item																				2
Lessor, Operating Lease, Renewal Term																				15 years	15 years
Operating Lease, Weighted Average Remaining Lease Term																				15 years	15 years
Cincinnati Facility [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions																			$ 4,000,000														4,126,000
Melbourne Facility [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions																	$ 7,700,000	$ 7,700,000															7,719,000
Number of Renewal Options Allowed | item																	2
Lessor, Operating Lease, Renewal Term																	5 years	5 years
Lessor, Operating Lease, Term of Contract																	5 years	5 years
Corona Facility [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions																																	$ 16,290,000
Lessor, Operating Lease, Term of Contract																																	12 years
Southern IL Facilities [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions																$ 14,500,000																	$ 14,490,000
Lessor, Operating Lease, Term of Contract																																12 years
Southern IL Facilities [Member] | SSM Health Care St Louis [Member]
Property, Plant and Equipment [Line Items]
Lessor, Operating Lease, Renewal Term																																2 years 6 months
Southern IL Facilities [Member] | Metro East Dermatology [Member]
Property, Plant and Equipment [Line Items]
Lessor, Operating Lease, Renewal Term																																1 year
Lessor, Operating Lease, Term of Contract																																1 year
Southern IL Facilities [Member] | Quest Diagnostics Clinical Laboratories [Member]
Property, Plant and Equipment [Line Items]
Lessor, Operating Lease, Term of Contract																9 months																	9 months
Southern IL Facilities [Member] | Heartland Womens Healthcare IL PC [Member]
Property, Plant and Equipment [Line Items]
Lessor, Operating Lease, Renewal Term																																2 years 6 months	2 years 6 months
Lessor, Operating Lease, Term of Contract																																12 years
Southern IL Facilities [Member] | Heart land Womens Healthcare Ltd [Member] | Marion [Member]
Property, Plant and Equipment [Line Items]
Lessor, Operating Lease, Renewal Term																2 years 6 months																	2 years 6 months
Lessor, Operating Lease, Term of Contract																																12 years
Southern IL Facilities [Member] | Heart land Womens Healthcare Ltd [Member] | Mount Vernon [Member]
Property, Plant and Equipment [Line Items]
Lessor, Operating Lease, Renewal Term																2 years 6 months																	2 years 6 months
Lessor, Operating Lease, Term of Contract																																12 months
LTAC Hospital [Member]
Property, Plant and Equipment [Line Items]
Lessor, Operating Lease, Term of Contract															16 years
Northern Ohio Medical Specialists, LLC [Member]
Property, Plant and Equipment [Line Items]
Number of Renewal Options Allowed | item																												4
Lessor, Operating Lease, Renewal Term																												5 years
Northern Ohio Medical Specialists, LLC [Member] | Fremont Facility [Member]
Property, Plant and Equipment [Line Items]
Operating Lease, Weighted Average Remaining Lease Term																												12 years
SCP Eye Care Services, LLC [Member]
Property, Plant and Equipment [Line Items]
Number of Renewal Options Allowed | item																											4
Lessor, Operating Lease, Renewal Term																											5 years
Operating Lease, Weighted Average Remaining Lease Term																											12 years