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Additional Information-Condensed Financial Statements of Weibo Corporation - Statements of Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Statements of Comprehensive Income (Loss) |  |  |
Operating loss | $ 140,980 | $ 37,503 | $ (22,103)
Interest and other income (expenses), net | 8,757 | 6,344 | 6,780
Investment related impairment | (40,161) | (8,005) | (2,521)
Change in fair value of investor option liability (Note 15) |  |  | (46,972)
Other income (loss), net |  |  |
Share of income (loss) of subsidiaries, VIE, and VIE's subsidiaries | (130) | (6) | (5)
Net income (loss) attributable to Weibo | 108,027 | 34,745 | (65,325)
Other comprehensive loss |  |  |
Currency translation adjustments (net of tax of nil, nil, and nil for 2014, 2015 and 2016 respectively) | (18,898) | (7,874) | (1,450)
Available-for-Sale securities: |  |  |
Change in unrealized loss from available-for-sale securities (net of tax of nil, nil, and nil for 2014, 2015, and 2016, respectively) | (2,557) | (198) | (2,067)
Reclassification adjustment for net loss included in net income (loss) (net of tax of nil, nil, and nil for 2014, 2015, and 2016, respectively) | 4,822 |  |
Net change, net of tax | 2,265 | (198) | (2,067)
Comprehensive income (loss) attributable to Weibo | 91,668 | 26,946 | (68,619)
Weibo Corporation |  |  |
Statements of Comprehensive Income (Loss) |  |  |
Operating loss | (1,891) | (1,279) | (1,086)
Interest and other income (expenses), net | 1,763 | 4,759 | 5,034
Investment related impairment | (23,822) |  |
Change in fair value of investor option liability (Note 15) |  |  | (46,972)
Other income (loss), net |  |  |
Share of income (loss) of subsidiaries, VIE, and VIE's subsidiaries | 131,977 | 31,265 | (22,301)
Net income (loss) attributable to Weibo | 108,027 | 34,745 | (65,325)
Other comprehensive loss |  |  |
Currency translation adjustments (net of tax of nil, nil, and nil for 2014, 2015 and 2016 respectively) | (18,624) | (7,601) | (1,227)
Available-for-Sale securities: |  |  |
Change in unrealized loss from available-for-sale securities (net of tax of nil, nil, and nil for 2014, 2015, and 2016, respectively) | (2,557) | (198) | (2,067)
Reclassification adjustment for net loss included in net income (loss) (net of tax of nil, nil, and nil for 2014, 2015, and 2016, respectively) | 4,822 |  |
Net change, net of tax | 2,265 | (198) | (2,067)
Comprehensive income (loss) attributable to Weibo | $ 91,668 | $ 26,946 | $ (68,619)

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