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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Real Estate (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Companies
Dec. 31, 2012
Companies
Dec. 31, 2011
Companies
Real Estate      
Number of business combinations 2 23 11
Business Combination, Acquisition Related Costs $ 1,500,000 $ 1,700,000 $ 3,200,000
Impairment of Real Estate Investments $ 0 $ 2,481,000 $ 0
Land improvements | Minimum
     
Real Estate      
Property, plant and equipment, useful life 3 years    
Land improvements | Maximum
     
Real Estate      
Property, plant and equipment, useful life 40 years    
Buildings and building improvements | Minimum
     
Real Estate      
Property, plant and equipment, useful life 3 years    
Buildings and building improvements | Maximum
     
Real Estate      
Property, plant and equipment, useful life 40 years    
Furniture and equipment | Minimum
     
Real Estate      
Property, plant and equipment, useful life 1 year    
Furniture and equipment | Maximum
     
Real Estate      
Property, plant and equipment, useful life 20 years