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Share-based Compensation Plans and Awards - Stock Options Narrative (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
3 Months Ended | 9 Months Ended | |
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Sep. 30, 2012
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Sep. 30, 2012
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Sep. 30, 2011
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Closing stock price (usd per share) | $ 10.87 | $ 10.87 | |
| Total grant date fair value of stock options vested | $ 16 | $ 5 | |
| Aggregate intrinsic value of all options excerised | 13 | 14 | |
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Stock options [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Unrecognized stock-based compensation expense related to non-vested stock options | $ 23 | $ 23 | |
| Unrecognized stock-based compensation expense, weighted average period of recognition | 3 years | ||