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FAIR VALUE OF CERTAIN FINANCIAL ASSETS AND LIABILITIES (Details 3) (Level 3, Assets at fair value on recurring basis) | 3 Months Ended
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Mar. 31, 2012 Auction Rate Securities: Trading Minimum Discounted cash flow | Mar. 31, 2012 Auction Rate Securities: Trading Maximum Discounted cash flow | Mar. 31, 2012 Auction Rate Securities: Trading Weighted Average Discounted cash flow | Mar. 30, 2012 Auction Rate Securities: Available-for-sale Minimum Market comparable bonds | Mar. 30, 2012 Auction Rate Securities: Available-for-sale Maximum Market comparable bonds | Mar. 30, 2012 Auction Rate Securities: Available-for-sale Weighted Average Market comparable bonds | Mar. 31, 2012 Put Options Minimum Discounted cash flow | Mar. 31, 2012 Put Options Maximum Discounted cash flow | Mar. 31, 2012 Put Options Weighted Average Discounted cash flow
Quantitative information related to the significant unobservable inputs |  |  |  |  |  |  |  |  |
Maximum rate probability (as a percent) | 0.02% | 6.68% | 1.04% |  |  |  |  |  |
Principal returned probability (as a percent) | 81.84% | 95.79% | 87.93% |  |  |  |  |  |
Default probability (as a percent) | 4.08% | 12.29% | 11.03% |  |  |  |  |  |
Liquidity risk (as a percent) | 3.50% | 3.50% | 3.50% |  |  |  |  |  |
Recovery rate (as a percent) | 60.00% | 80.00% | 60.76% |  |  |  |  |  |
Market price (as a percent) |  |  |  | 51.00% | 64.00% | 55.00% |  |  |
Counterparty risk (as a percent) |  |  |  |  |  |  | 1.79% | 2.50% | 2.15%

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- Details
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- Definition Risk that one party to the contract will default expressed as a percentage, used as an input to measure fair value. + References No definition available. + Details
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- Definition Represents the liquidity risk, used as an input to measure fair value. + References No definition available. + Details
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- Definition Represents the market price, used as an input to measure fair value. + References No definition available. + Details
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- Definition Represents maximum rate probability expressed as a percentage, used as an input to measure fair value. + References No definition available. + Details
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- Definition Percentage of likelihood the principal will be returned, used as an input to measure fair value. + References No definition available. + Details
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- Definition Percentage of likelihood a loan will not be repaid and instead default, used as an input to measure fair value. + References No definition available. + Details
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- Definition Represents the risk associated with recovery, used as an input to measure fair value. + References No definition available. + Details
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