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Property and Equipment - Net (Details) (USD $)
In Thousands, unless otherwise specified |
Sep. 30, 2014
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Dec. 31, 2013
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| Schedule of property and equipment | ||||||||
| Property and equipment-gross | $ 35,486 | $ 30,730 | ||||||
| Less accumulated depreciation | (19,950) | [1] | (16,645) | [1] | ||||
| Total property and equipment—net | 15,536 | 14,085 | ||||||
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Computer equipment [Member]
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| Schedule of property and equipment | ||||||||
| Property and equipment-gross | 20,920 | [2] | 19,361 | [2] | ||||
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Computer software [Member]
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| Schedule of property and equipment | ||||||||
| Property and equipment-gross | 5,241 | 4,625 | ||||||
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Furniture and fixtures [Member]
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| Schedule of property and equipment | ||||||||
| Property and equipment-gross | 1,772 | 1,634 | ||||||
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Leasehold improvements [Member]
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| Schedule of property and equipment | ||||||||
| Property and equipment-gross | 1,232 | 1,044 | ||||||
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Work in process [Member]
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| Schedule of property and equipment | ||||||||
| Property and equipment-gross | 6,148 | 3,893 | ||||||
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Other [Member]
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| Schedule of property and equipment | ||||||||
| Property and equipment-gross | $ 173 | $ 173 | ||||||
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