v3.8.0.1
Document and Entity Information - shares
3 Months Ended
Mar. 31, 2018
Apr. 15, 2018
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Mar. 31, 2018  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q1  
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   770,606,437
Common Class B [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   66,716,574
Common Class C [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   20,517,472