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Debt - 2020 Subordinated Notes (Details) (USD $)
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0 Months Ended | 12 Months Ended | 0 Months Ended | 9 Months Ended | |
|---|---|---|---|---|---|
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Jun. 30, 2010
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Dec. 31, 2014
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May 02, 2013
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Sep. 30, 2014
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Dec. 31, 2013
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| Debt Instrument [Line Items] | |||||
| Subordinated notes fixed interest rate | 20.00% | 10.00% | |||
| 2020 subordinated notes, net of discount | |||||
| Debt Instrument [Line Items] | |||||
| Consideration paid, subordinated notes | $ 17,500,000 | ||||
| Subordinated notes fixed interest rate | 6.00% | ||||
| Subordinated notes maturity, years | Nov. 02, 2020 | ||||
| Increase in interest rate, until maturity period | 8.00% | ||||
| Interest payable due date | 3/31/2015 | ||||
| Quarterly payment of principal | 1,000,000 | ||||
| Weighted average interest rate (as a percent) | 6.00% | 6.00% | |||
| 2020 subordinated notes, net of discount | Subordinated Notes | |||||
| Debt Instrument [Line Items] | |||||
| Estimated fair value of subordinated notes | 15,900,000 | ||||
| Interest rate | 9.00% | ||||
| Debt outstanding | 16,500,000 | 16,200,000 | |||
| Debt instrument, face amount | 17,500,000 | 17,500,000 | |||
| Debt instrument, unamortized discount | 1,000,000 | $ 1,300,000 |