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Certain risks and concentration - Schedule of Consolidated Financial Information of VIEs and VIE's Subsidiaries - Income Statement (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Net revenue from continuing operations | $ 186,371 | $ 180,665 | $ 230,604
Net loss attributable to Xunlei Limited | (13,840) | (53,169) | (39,278)
Variable Interest Entity, Primary Beneficiary [Member] |  |  |
Net revenue from continuing operations | 186,413 | 177,520 | 231,616
Net loss attributable to Xunlei Limited | $ (10,673) | $ (56,328) | $ (40,728)

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