XML 19 R1.htm IDEA: XBRL DOCUMENT v3.21.2
Cover - USD ($)
$ in Billions
 12 Months Ended
Sep. 24, 2021
Oct. 29, 2021
Mar. 26, 2021
Entity Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Sep. 24, 2021    
Document Transition Report false    
Entity File Number 001-32431    
Entity Registrant Name DOLBY LABORATORIES, INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 90-0199783    
Entity Address, Address Line One 1275 Market Street    
Entity Address, City or Town San Francisco    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 94103-1410    
City Area Code 415    
Local Phone Number 558-0200    
Title of 12(b) Security Class A common stock, $0.001 par value    
Trading Symbol DLB    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Shell Company false    
ICFR Auditor Attestation Flag true    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Public Float     $ 5.7
Documents Incorporated by Reference
DOCUMENTS INCORPORATED BY REFERENCE
Portions of the registrant’s Definitive Proxy Statement to be filed with the Commission pursuant to Regulation 14A in connection with the registrant’s 2022 Annual Meeting of Stockholders, to be filed subsequent to the date hereof, are incorporated by reference into Part III of this Report. Such Definitive Proxy Statement will be filed with the Securities and Exchange Commission not later than 120 days after the conclusion of the registrant’s fiscal year ended September 24, 2021. Except with respect to information specifically incorporated by reference in this Form 10-K, the Definitive Proxy Statement is not deemed to be filed as part of this Form 10-K.
    
Entity Central Index Key 0001308547    
Current Fiscal Year End Date --09-24    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Amendment Flag false    
Class A Common Stock [Member]      
Entity Information [Line Items]      
Entity Common Stock, Shares Outstanding   65,073,727  
Common Class B [Member]      
Entity Information [Line Items]      
Entity Common Stock, Shares Outstanding   36,086,779