| 
           SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Useful Lives for Amortization (Details 4) 
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        12 Months Ended | |||
|---|---|---|---|---|
| 
           Dec. 31, 2013 
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| 
           Senior Housing | In-Place Resident Lease Intangibles | Lower Range 
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| Amortization period | 2 years | [1] | ||
| 
           Senior Housing | In-Place Resident Lease Intangibles | Upper Range 
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        ||||
| Amortization period | 3 years | [1] | ||
| 
           Senior Housing | Non-Compete Intangibles | Lower Range 
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| Amortization period | 5 years | |||
| 
           Senior Housing | Land Lease Intangibles | Lower Range 
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        ||||
| Amortization period | 74 years | |||
| 
           Senior Housing | Land Lease Intangibles | Upper Range 
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        ||||
| Amortization period | 82 years | |||
| 
           Senior Housing | PILOT Intangibles | Lower Range 
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        ||||
| Amortization period | 13 years | |||
| 
           Senior Housing | Other Intangibles | Lower Range 
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        ||||
| Amortization period | 2 years | |||
| 
           Senior Housing | Other Intangibles | Upper Range 
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| Amortization period | 5 years | |||
| 
           Media | Advertiser Relationships | Lower Range 
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        ||||
| Amortization period | 14 years | |||
| 
           Media | Advertiser Relationships | Upper Range 
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| Amortization period | 16 years | |||
| 
           Media | Customer Relationships | Lower Range 
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| Amortization period | 15 years | |||
| 
           Media | Customer Relationships | Upper Range 
         | 
        ||||
| Amortization period | 16 years | |||
| 
           Media | Subscriber Relationships | Lower Range 
         | 
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| Amortization period | 15 years | |||
| 
           Media | Subscriber Relationships | Upper Range 
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| Amortization period | 16 years | |||
| 
           Media | Trade Name | Lower Range 
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| Amortization period | 10 years | |||
| 
           Golf | Trade Name | Lower Range 
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| Amortization period | 30 years | |||
| 
           Golf | Trade Name | Upper Range 
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        ||||
| Amortization period | 40 years | |||
| 
           Golf | Leasehold Intangibles | Lower Range 
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        ||||
| Amortization period | 9 years | |||
| 
           Golf | Leasehold Intangibles | Upper Range 
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| Amortization period | 10 years | |||
| 
           Golf | Management Contracts | Lower Range 
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| Amortization period | 11 years | |||
| 
           Golf | Management Contracts | Upper Range 
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        ||||
| Amortization period | 12 years | |||
| 
           Golf | Internally-developed software | Lower Range 
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        ||||
| Amortization period | 5 years | |||
| 
           Golf | Membership Base | Lower Range 
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        ||||
| Amortization period | 7 years | |||
| 
           Golf | Membership Base | Upper Range 
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        ||||
| Amortization period | 9 years | |||
          
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