Property and Equipment - Net (Detail) (USD $)
In Thousands, unless otherwise specified |
Sep. 30, 2014
|
Dec. 31, 2013
|
---|---|---|
Property, Plant and Equipment [Line Items] | ||
Property and equipment, Gross | $ 156,657 | $ 113,667 |
Less: accumulated depreciation | (59,680) | (38,107) |
Total property and equipment, net | 96,977 | 75,560 |
Computer Equipment And Software [Member]
|
||
Property, Plant and Equipment [Line Items] | ||
Property and equipment, Gross | 122,398 | 90,617 |
Furniture and Fixtures [Member]
|
||
Property, Plant and Equipment [Line Items] | ||
Property and equipment, Gross | 15,672 | 13,751 |
Leasehold Improvements [Member]
|
||
Property, Plant and Equipment [Line Items] | ||
Property and equipment, Gross | 13,978 | 8,371 |
Construction in Progress [Member]
|
||
Property, Plant and Equipment [Line Items] | ||
Property and equipment, Gross | $ 4,609 | $ 928 |