v3.5.0.2
Document and Entity Information - shares
9 Months Ended
Sep. 30, 2016
Oct. 15, 2016
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2016  
Document Fiscal Year Focus 2016  
Document Fiscal Period Focus Q3  
Trading Symbol ZNGA  
Entity Registrant Name ZYNGA INC  
Entity Central Index Key 0001439404  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Common Class A [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   775,224,508
Common Class B [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   96,201,758
Common Class C [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   20,517,472