v3.6.0.2
Document And Entity Information - shares
3 Months Ended
Dec. 30, 2016
Jan. 27, 2017
Entity Registrant Name Dolby Laboratories, Inc.  
Entity Central Index Key 0001308547  
Current Fiscal Year End Date --09-29  
Entity Filer Category Large Accelerated Filer  
Document Type 10-Q  
Document Period End Date Dec. 30, 2016  
Document Fiscal Year Focus 2017  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Class A Common Stock [Member]    
Entity Common Stock, Shares Outstanding   57,867,086
Class B Common Stock [Member]    
Entity Common Stock, Shares Outstanding   44,073,597