Stock-Based Compensation (Additional Information) (Details) - USD ($) $ / shares in Units, $ in Thousands |
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3 Months Ended |
9 Months Ended |
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|
Jan. 06, 2016 |
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
Jun. 30, 2016 |
Apr. 30, 2016 |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Aggregate intrinsic value of options exercised |
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$ 42
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| Stock-based compensation expense |
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$ 1,003
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$ 958
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$ 3,168
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$ 2,860
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| Number of shares authorized (in shares) |
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3,602,328
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| Stock options granted (in shares) |
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1,537,000
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| Common stock options |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Compensation costs not yet recognized |
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$ 6,200
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$ 6,200
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| Period for recognizing costs (in years) |
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2 years 1 month 28 days
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| Performance Shares [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Unvested options granted (in shares) |
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111,000
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111,000
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| Vest On Market Condition [Member] | Non Qualified Stock Option [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Stock-based compensation expense |
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$ 138
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| Stock options granted (in shares) |
206,625
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| Minimum stock price for the options to vest (in usd per share) |
$ 6.00
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| Minimum stock price for the options to vest, number of consecutive trading days (in days) |
20 days
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| Expiration period (in years) |
10 years
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| 2011 Plan [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Number of shares authorized (in shares) |
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5,002,328
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