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SECURITIZATIONS (Details) (USD $) | Sep. 30, 2012 | Dec. 31, 2011
--- | --- | ---
SECURITIZATIONS |  |
Unrealized gains recorded in AOCI | $ 30,289,000 | $ 24,011,000
Residential mortgage-backed securities | Quoted prices of similar instruments in active markets |  |
SECURITIZATIONS |  |
Fair value | 7,700,000 | 9,900,000
Unrealized gains recorded in AOCI | $ 500,000 | $ 500,000

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