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CONCENTRATION OF CREDIT RISK (Details)
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6 Months Ended | 3 Months Ended | 3 Months Ended | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Jun. 30, 2013
state
province
|
Jun. 30, 2013
Seniors housing communities
property
|
Jun. 30, 2013
Atria and Sunrise [Member]
Seniors housing communities
property
|
Jun. 30, 2013
Total gross book value of properties
Seniors housing communities
|
Jun. 30, 2013
Total gross book value of properties
Skilled nursing facilities, hospitals, MOBs and other healthcare assets
|
Jun. 30, 2013
Total gross book value of properties
ATRIA
|
Jun. 30, 2013
Total gross book value of properties
SUNRISE
|
Jun. 30, 2013
Total gross book value of properties
Brookdale Senior Living
|
Jun. 30, 2013
Total gross book value of properties
Kindred
|
Jun. 30, 2013
Total revenues
state
|
Jun. 30, 2013
Total revenues
Brookdale Senior Living
|
Jun. 30, 2012
Total revenues
Brookdale Senior Living
|
Jun. 30, 2013
Total revenues
Kindred
|
Jun. 30, 2012
Total revenues
Kindred
|
Jun. 30, 2013
Total NOI
state
|
Jun. 30, 2013
Total NOI
Brookdale Senior Living
|
Jun. 30, 2012
Total NOI
Brookdale Senior Living
|
Jun. 30, 2013
Total NOI
Kindred
|
Jun. 30, 2012
Total NOI
Kindred
|
Jun. 30, 2013
ATRIA
|
Dec. 31, 2012
ATRIA
|
|
| Concentration Risk [Line Items] | |||||||||||||||||||||
| Percentage of real estate investments based on gross book value | 62.00% | 38.00% | 19.00% | 14.60% | 10.30% | 3.50% | |||||||||||||||
| Number of states accounting for more than 10% of total revenues | 2 | ||||||||||||||||||||
| Number of states accounting for more than 10% of net operating income | 1 | ||||||||||||||||||||
| Percentage of total revenues derived by third party | 5.70% | 6.40% | 8.20% | 10.50% | |||||||||||||||||
| Percentage of net operating income derived from lease agreements | 9.50% | 10.60% | 13.60% | 17.30% | |||||||||||||||||
| Ownership interests accounted for under the equity method (as a percent) | 34.00% | 34.00% | |||||||||||||||||||
| Real estate properties | |||||||||||||||||||||
| Number of seniors housing communities under long-term management agreements | 229 | 227 | |||||||||||||||||||
| Number of states | 46 | ||||||||||||||||||||
| Number of Canadian provinces | 2 | ||||||||||||||||||||