| REAL ESTATE SECURITIES - Credit Losses on Debt Securities (Details 3) (Securities in an Unrealized Loss Position [Member], USD $) In Thousands, unless otherwise specified | 9 Months Ended | 
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| Sep. 30, 2014 | |
| Securities in an Unrealized Loss Position [Member] | |
| Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward] | |
| Beginning balance of credit losses on debt securities for which a portion of an OTTI was recognized in other comprehensive income | $ (2,873) | 
| Reduction for securities sold/written off during the period | $ 2,873 | 
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- Definition The cumulative amount of credit losses recognized in earnings related to debt securities held for which a portion of an other than temporary impairment (OTTI) was recognized in other comprehensive income (a component of shareholders' equity). Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition This item represents reductions in the cumulative amount of credit losses recognized in earnings for an other than temporary impairment (OTTI) of a debt security because of the sale of impaired securities during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Details 
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