v2.4.0.6
Document and Entity Information (USD $)
12 Months Ended
Sep. 24, 2010
Mar. 26, 2010
Nov. 04, 2010
Class A Common Stock
Nov. 04, 2010
Class B Common Stock
Document Type 10-K      
Amendment Flag false      
Document Period End Date Sep. 24, 2010      
Document Fiscal Year Focus 2010      
Document Fiscal Period Focus FY      
Trading Symbol dlb      
Entity Registrant Name Dolby Laboratories, Inc.      
Entity Central Index Key 0001308547      
Current Fiscal Year End Date --09-24      
Entity Filer Category Large Accelerated Filer      
Entity Public Float   $ 3,200,000,000    
Entity Well-known Seasoned Issuer Yes      
Entity Current Reporting Status Yes      
Entity Voluntary Filers No      
Entity Common Stock, Shares Outstanding     52,652,649 59,208,929