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Severance and Other Charges (Details) - Severance and Other Charges Costs (USD $)
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3 Months Ended | 9 Months Ended | ||
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Sep. 30, 2014
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Sep. 30, 2013
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Sep. 30, 2014
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Sep. 30, 2013
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| Restructuring Cost and Reserve [Line Items] | ||||
| Total severance and other charges | $ 805 | $ 1,182 | $ 62 | |
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Employee Severance [Member]
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| Restructuring Cost and Reserve [Line Items] | ||||
| Total severance and other charges | 731 | 800 | 62 | |
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Contract Termination [Member]
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| Restructuring Cost and Reserve [Line Items] | ||||
| Total severance and other charges | 74 | 117 | ||
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Legal Settlement [Member]
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| Restructuring Cost and Reserve [Line Items] | ||||
| Total severance and other charges | $ 265 | |||