v2.4.0.8
Document And Entity Information
3 Months Ended
Dec. 27, 2013
Jan. 17, 2014
Class A Common Stock [Member]
Jan. 17, 2014
Class B Common Stock [Member]
Entity Registrant Name Dolby Laboratories, Inc.    
Entity Central Index Key 0001308547    
Current Fiscal Year End Date --09-26    
Entity Filer Category Large Accelerated Filer    
Document Type 10-Q    
Document Period End Date Dec. 27, 2013    
Document Fiscal Year Focus 2014    
Document Fiscal Period Focus Q1    
Amendment Flag false    
Entity Common Stock, Shares Outstanding   48,495,291 53,641,706