v2.4.0.8
Document And Entity Information
6 Months Ended
Mar. 28, 2014
Apr. 18, 2014
Class A Common Stock [Member]
Apr. 18, 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 Mar. 28, 2014    
Document Fiscal Year Focus 2014    
Document Fiscal Period Focus Q2    
Amendment Flag false    
Entity Common Stock, Shares Outstanding   49,655,391 52,904,342