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Summary of Business and Significant Accounting Policies (Details)
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6 Months Ended |
|---|---|
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Jun. 30, 2012
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Computer equipment and software [Member] | Maximum [Member]
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| Property and equipment estimated useful lives | |
| Property and Equipment useful lives | 5 years |
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Computer equipment and software [Member] | Minimum [Member]
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|
| Property and equipment estimated useful lives | |
| Property and Equipment useful lives | 3 years |
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Furniture and Fixtures [Member] | Maximum [Member]
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|
| Property and equipment estimated useful lives | |
| Property and Equipment useful lives | 5 years |
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Furniture and Fixtures [Member] | Minimum [Member]
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|
| Property and equipment estimated useful lives | |
| Property and Equipment useful lives | 3 years |
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Leasehold Improvements [Member]
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|
| Property and equipment estimated useful lives | |
| Property and Equipment useful lives | Shorter of the lease term or estimated useful life |