|
Stock-based Compensation Plans and Awards (Stock-Based Compensation Expense) (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2014
|
Sep. 30, 2013
|
Sep. 30, 2014
|
Sep. 30, 2013
|
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| Stock-based compensation expenses: | ||||
| Total stock-based compensation expense | $ 22,111 | $ 12,164 | $ 60,116 | $ 28,826 |
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Cost of revenue - other
|
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| Stock-based compensation expenses: | ||||
| Total stock-based compensation expense | 1,063 | 540 | 2,976 | 1,435 |
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Product development
|
||||
| Stock-based compensation expenses: | ||||
| Total stock-based compensation expense | 4,402 | 2,610 | 12,289 | 6,449 |
|
Sales and marketing
|
||||
| Stock-based compensation expenses: | ||||
| Total stock-based compensation expense | 10,442 | 5,754 | 28,675 | 15,202 |
|
General and administrative
|
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| Stock-based compensation expenses: | ||||
| Total stock-based compensation expense | $ 6,204 | $ 3,260 | $ 16,176 | $ 5,740 |