Quarterly report pursuant to Section 13 or 15(d)

Document And Entity Information

v2.4.0.6
Document And Entity Information
3 Months Ended
Apr. 30, 2012
May 25, 2012
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Apr. 30, 2012  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2013  
Entity Registrant Name Pandora Media, Inc.  
Entity Central Index Key 0001230276  
Current Fiscal Year End Date --01-31  
Entity Filer Category Non-accelerated Filer  
Entity Common Stock, Shares Outstanding   166,654,653