Real Estate Investments, Net - Lease Amendments (Details) $ in Thousands		3 Months Ended	12 Months Ended
	Oct. 01, 2019 USD ($) renewal_option facility bed	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Nov. 04, 2019 USD ($) renewal_option facility	Sep. 01, 2019 USD ($) property renewal_option	Aug. 16, 2019 property	Jul. 15, 2019 property	May 01, 2018
Real Estate [Line Items]
Initial annual cash rent | $			$ 29,143	$ 9,955
Ensign
Real Estate [Line Items]
Number of facilities leased | facility	85
Number of beds in leased facilities | bed	8,908
Reduction to contractual annual cash rent as result of spin | $	$ 7,800
Pennant
Real Estate [Line Items]
Number of facilities leased | facility	11
Number of beds in leased facilities | bed	1,151
Initial annual cash rent | $	$ 7,800
Initial lease term (in years)	15 years
Number of renewal options | renewal_option	2
Lease renewal term (in years)	5 years
Trillium | Iowa
Real Estate [Line Items]
Properties in terminated master lease | property								10
Properties covered in new master lease | property							10
Trillium | Ohio
Real Estate [Line Items]
Properties in terminated master lease | property								7
Trillium | Georgia
Real Estate [Line Items]
Properties in terminated master lease | property								1
Properties covered in new master lease | property							1
Accounts and Other Receivables
Real Estate [Line Items]
Write-off of accounts and straight-line rent receivable | $		$ 3,800
Skilled Nursing Properties
Real Estate [Line Items]
Initial annual cash rent | $			$ 22,909	$ 7,715
Skilled Nursing Properties | Trillium | Ohio
Real Estate [Line Items]
Properties in terminated master lease | property								7
Skilled Nursing Properties | Providence | Ohio
Real Estate [Line Items]
Number of properties transferred | property						4
Triple-net master lease | Providence
Real Estate [Line Items]
Initial lease term (in years)						13 years
Number of renewal options | renewal_option						2
Lease renewal term (in years)						5 years
Annual cash rent increase under amended lease | $						$ 2,100
Trio Healthcare Master Lease
Real Estate [Line Items]
Initial lease term (in years)									15 years
Trio Healthcare Master Lease | Trio
Real Estate [Line Items]
Number of facilities leased | facility					7
Initial lease term (in years)					13 years
Number of renewal options | renewal_option					2
Lease renewal term (in years)					5 years
Annual cash rent increase under amended lease | $					$ 4,700