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Document and Entity Information
 12 Months Ended
Dec. 31, 2016
shares
Entity Registrant Name WEIBO Corp
Entity Central Index Key 0001595761
Document Type 20-F
Document Period End Date Dec. 31, 2016
Amendment Flag false
Current Fiscal Year End Date --12-31
Entity Well-known Seasoned Issuer Yes
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Filer Category Large Accelerated Filer
Document Fiscal Year Focus 2016
Document Fiscal Period Focus FY
Class A ordinary shares  
Entity Common Stock, Shares Outstanding 109,155,101
Class B ordinary shares  
Entity Common Stock, Shares Outstanding 108,921,106
Ordinary Shares  
Entity Common Stock, Shares Outstanding 218,076,207