Concentration of Credit Risk (Minimum Rents) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
Future contracted minimum rentals leases
2014	$ 1,316,003
2015	1,275,552
2016	1,230,180
2017	1,160,691
2018	1,105,033
Thereafter	5,548,902
Total	11,636,361
BROOKDALE SENIOR LIVING
Future contracted minimum rentals leases
2014	182,472
2015	182,625
2016	183,115
2017	183,321
2018	173,397
Thereafter	203,335
Total	1,108,265
KINDRED
Future contracted minimum rentals leases
2014	189,183
2015	181,470
2016	185,082
2017	154,440
2018	140,593
Thereafter	585,303
Total	1,436,071
Other
Future contracted minimum rentals leases
2014	944,348
2015	911,457
2016	861,983
2017	822,930
2018	791,043
Thereafter	4,760,264
Total	$ 9,092,025

Future minimum rental payments in aggregate as of the balance sheet date under operating leases.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6454179&loc=d3e41551-112718

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Future rental payments receivable within the fifth year from the balance sheet date under an operating lease.

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