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Summary of Property and Equipment, Net (Detail) (USD $)
In Thousands, unless otherwise specified |
Sep. 30, 2012
|
Dec. 31, 2011
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Jun. 30, 2011
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Jun. 30, 2010
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|---|---|---|---|---|
| Property, Plant and Equipment [Line Items] | ||||
| Property and equipment, Gross | $ 50,706 | $ 24,876 | $ 11,570 | $ 2,348 |
| Less: accumulated depreciation | (11,620) | (4,181) | (2,103) | (650) |
| Total property and equipment, net | 39,086 | 20,695 | 9,467 | 1,698 |
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Computer Equipment And Software
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| Property, Plant and Equipment [Line Items] | ||||
| Property and equipment, Gross | 41,919 | 16,586 | 6,562 | 1,752 |
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Furniture and Fixtures
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||||
| Property, Plant and Equipment [Line Items] | ||||
| Property and equipment, Gross | 3,017 | 1,755 | 1,230 | 192 |
|
Leasehold Improvements
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||||
| Property, Plant and Equipment [Line Items] | ||||
| Property and equipment, Gross | 815 | 2,795 | 2,747 | 106 |
|
Construction in Progress
|
||||
| Property, Plant and Equipment [Line Items] | ||||
| Property and equipment, Gross | $ 4,955 | $ 3,740 | $ 1,031 | $ 298 |