SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	12 Months Ended
Dec. 31, 2012
Loans
Minimum number of days past due for loans excluding automobile loans on which interest is generally not accrued	90 days
Number of days until which automobile loans accrue, after which they are charged off	120 days
Acquired Loans
Minimum period of past due for automobile loans to be charged-off	90 days
Allowance for Loan Losses
Threshold of loan-to-value ratio to originate a loan (as a percent)	80.00%
Threshold of loan-to-value ratio for private mortgage insurance (as a percent)	80.00%
Employee Benefits
Threshold percentage of amortization of net actuarial gain or loss in net periodic benefit cost over the average remaining service period of active participants in the Plans	10.00%

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- Definition

Represents the threshold percentage of amortization of net actuarial gain or loss in net periodic benefit cost over the average remaining service period of active participants in the plans.

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No definition available.

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- Definition

Represents the minimum period of past due for acquired loan for that the entity has determined that it can reasonably estimate future cash flows.

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No definition available.

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- Definition

Represents the threshold of loan-to-value ratio. The entity requires a private mortgage insurance (PMI) having a loan-to-value ratio greater than this threshold.

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No definition available.

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- Definition

Represents the threshold of loan-to-value ratio. The entity will not originate a loan having a loan-to-value ratio greater than this threshold.

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No definition available.

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- Definition

Represents the threshold period past due for financing receivables, excluding automobile loans, on which interest is generally not accrued.

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No definition available.

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- Definition

Threshold period past due for financing receivable to write-off as uncollectible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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