v2.4.0.6
Document and Entity Information
9 Months Ended
Jul. 01, 2011
Jul. 21, 2011
Class A Common Stock [Member]
Jul. 21, 2011
Class B Common Stock [Member]
Document Type 10-Q    
Amendment Flag false    
Document Period End Date Jul. 01, 2011    
Document Fiscal Year Focus 2011    
Document Fiscal Period Focus Q3    
Entity Registrant Name Dolby Laboratories, Inc.    
Entity Central Index Key 0001308547    
Current Fiscal Year End Date --09-30    
Entity Filer Category Large Accelerated Filer    
Entity Common Stock, Shares Outstanding   52,655,614 57,773,454