Finance Receivables, Allowance for Credit Losses and Credit Quality Information - Additional Information (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
12 Months Ended | |
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Dec. 31, 2013
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Dec. 31, 2012
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Receivables [Abstract] | ||
Finance receivable , factors influenced management's decision | The methodology for estimating the allowance for credit losses changed from the trailing eight to trailing six month losses on small installment finance receivables, trailing twelve to trailing ten month losses on large installment finance receivables, and trailing twelve to trailing eleven month losses on retail purchase finance receivables | |
Reduction in loss allowance | $ 3,901 | |
Increase in Net income | 2,452 | |
Increase in diluted earnings per share | $ 0.19 | |
Offsetting pre-tax increase to the allowance for credit losses for qualitative factors | $ 3,450 | |
Finance receivables | 1.30% | 1.20% |