Operating Leases - Summary Of Revenues and Income Under the Master Lease (Details) - USD ($) $ in Thousands					1 Months Ended					3 Months Ended				9 Months Ended
	Aug. 03, 2017	Jul. 07, 2017	Jun. 02, 2017	Apr. 05, 2017	Oct. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	May 31, 2017	Apr. 30, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Nov. 01, 2017	Jul. 14, 2017
HCRMC rental and related revenues
Impairment charge on real estate assets										$ 9,910			$ 21,145	$ 391,959	$ 21,145
Restructuring and workout										5,475				13,358
Rental and related revenues										55,690			123,280	246,876	366,455
HCRMC Master Lease
HCRMC rental and related revenues
Impairment charge on real estate assets										9,900	$ 382,000
HCR ManorCare, Inc. | Deferred rent obligation, Tranche B
HCRMC rental and related revenues
Additional payment required																	$ 265,000
HCR ManorCare, Inc. | HCRMC Master Lease
HCRMC rental and related revenues
Required rent payments														39,500
Cash rent payments	$ 23,000	$ 8,200				$ 17,600
Restructuring and workout										5,500				13,400
Rental and related revenues										$ 48,900			$ 116,400	$ 226,200	$ 345,800
HCR ManorCare, Inc. | HCRMC Master Lease | Restricted cash
HCRMC rental and related revenues
Impound deposit collected												$ 4,000
HCR ManorCare, Inc. | HCRMC Master Lease | Subsequent event
HCRMC rental and related revenues
Cash rent payments					$ 21,000
Rent and other obligations due and receivable																$ 446,000
HCR ManorCare, Inc. | HCR ManorCare Incorporated Forbearance Agreement
HCRMC rental and related revenues
Required rent payments				$ 32,000			$ 32,000
Required rent payments, amount allowed as a deferred payment				7,500
Cash rent payments			$ 8,000					$ 32,000	$ 32,000
Temporary secured extension of credit, repayment received			7,000
Rental and related revenues			$ 15,000
Temporary secured extension of credit, borrowed				7,000
HCR ManorCare, Inc. | HCR ManorCare Incorporated Forbearance Agreement | Maximum
HCRMC rental and related revenues
Temporary secured extension of credit, total				21,000
Temporary secured extension of credit, per month				$ 7,000
HCR ManorCare, Inc. | HCRMC Lease Amendment
HCRMC rental and related revenues
Current and past due rent		$ 79,600