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           VARIABLE INTEREST ENTITIES (VIEs) - Additional Information (Detail) (USD $) 
        In Thousands, unless otherwise specified  | 
        
           Dec. 31, 2012 
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           Dec. 31, 2011 
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|---|---|---|
| Other assets | $ 6,944 | $ 8,400 | 
| Limited Partners' Capital Account | 3,192 | 3,403 | 
| 
           Loan [Member] 
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        ||
| Limited Partners' Capital Account | 2,270 | 2,270 | 
| 
           Partnership Investment [Member] 
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| Other assets | $ 313 | $ 504 | 
| X | ||||||||||
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- Definition 
          The amount of the limited partners' ownership interests. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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| X | ||||||||||
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- Definition 
          The aggregate carrying amounts, as of the balance sheet date, of assets not separately disclosed in the balance sheet. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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