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Commitments and Contingencies Narrative (Details) (USD $) |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 31, 2012 oz | Dec. 31, 2011 | Dec. 31, 2012 Minimum | Dec. 31, 2012 Maximum | Dec. 31, 2012 Variable Interest Entity, Not Primary Beneficiary
Guarantor Obligations [Line Items] |  |  |  |  |
Operating leases term |  |  | 3 years | 5 years |
Extensions of credit made by the Independent Lender to credit services customers amount range |  |  | $ 50 | $ 1,500 |
Extensions of credit made by the Independent Lender to credit services customers terms |  |  | 7 days | 35 days |
Extensions of credit made by the Independent Lender to credit services customers rate | 10.00% |  |  |  |
Net loans as a percentage of variable interest entity's total assets, maximum |  |  |  |  | 50.00%
Letter of Credit expires after due date of the extension of credit | 30 days |  |  |  |
Maximum loss exposure under outstanding letters of credit | $ 17,464,000 | $ 16,564,000 |  |  |
Forward sales commitments silver (ounces) | 36,000 |  |  |  |
Forward sales commitments gold (ounces) | 6,000 |  |  |  |

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- Definition Credit services organization program to assist consumers in obtaining extensions of credit - rate. + References No definition available. + Details
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- Definition Credit services organization program to assist consumers in obtaining extensions of credit - terms. + References No definition available. + Details
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- Definition Forward sales commitments to sell silver + References No definition available. + Details
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- Details
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