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INCOME TAXES (Details) (USD $)
3 Months Ended 6 Months Ended 8 Months Ended 14 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Dec. 31, 2011
Jun. 30, 2012
Provision (benefit) for income taxes            
Income tax expense (benefit) $ (5,179,000) $ (6,110,000) $ 6,159,000 $ (9,307,000)    
Net deferred tax liabilities 269,100,000   269,100,000   258,700,000 269,100,000
Deferred tax liabilities related to Atria Senior Living transaction         $ 43,500,000 $ 43,500,000