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Description of Business and Summary of Significant Accounting Policies (Details 6) (Options to purchase common stock)
In Thousands, unless otherwise specified |
3 Months Ended | |
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Mar. 31, 2015
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Mar. 31, 2014
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Options to purchase common stock
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| Anti-dilutive weighted-average common stock equivalents excluded from the calculation of diluted net income per share | ||
| Total (in shares) | 4,815 | 4,853 |