Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Statement Of Income And Comprehensive Income [Abstract] | ||||
| Net loss | $ (65,695) | $ (98,645) | $ (278,409) | $ (233,320) |
| Other comprehensive income (loss) | ||||
| Foreign currency translation adjustments, net of tax | 58 | 416 | 2,190 | (17,186) |
| Net unrealized gain (loss) on available-for-sale securities, net of tax | (18) | 7 | 260 | 148 |
| Other comprehensive income (loss) | 40 | 423 | 2,450 | (17,038) |
| Comprehensive loss | $ (65,655) | $ (98,222) | $ (275,959) | $ (250,358) |