v2.4.0.8
Document and Entity Information (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Jun. 30, 2014
Feb. 15, 2015
Common Class A [Member]
Feb. 15, 2015
Common Class B [Member]
Feb. 15, 2015
Common Class C [Member]
Document Information [Line Items]          
Document Type 10-K        
Amendment Flag false        
Document Period End Date Dec. 31, 2014        
Document Fiscal Year Focus 2014        
Document Fiscal Period Focus FY        
Trading Symbol ZNGA        
Entity Registrant Name ZYNGA INC        
Entity Central Index Key 0001439404        
Current Fiscal Year End Date --12-31        
Entity Well-known Seasoned Issuer Yes        
Entity Current Reporting Status Yes        
Entity Voluntary Filers No        
Entity Filer Category Large Accelerated Filer        
Entity Common Stock, Shares Outstanding     776,566,645 114,567,530 20,517,472
Entity Public Float   $ 2,379