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Earnings Per Share
 6 Months Ended
Mar. 31, 2023
Earnings Per Share [Abstract]  
Earnings Per Share Earnings Per Share
Basic EPS is computed by dividing net income attributable to Dolby Laboratories, Inc. by the number of weighted-average shares of Class A and Class B common stock outstanding during the period. Through application of the treasury stock method, diluted EPS is computed in the same manner, except that the number of weighted-average shares outstanding is increased by the number of potentially dilutive shares from employee incentive plans during the period.
Basic and diluted EPS are computed independently for each fiscal quarter and year-to-date period, which involves the use of different weighted-average share count figures relating to quarterly and annual periods. As a result, and after factoring the effect of rounding to the nearest cent per share, the sum of all four quarter-to-date EPS figures may not equal year-to-date EPS.
Potentially dilutive shares represent the hypothetical number of incremental shares issuable under the assumed exercise of outstanding stock options (both vested and unvested) and vesting of outstanding RSUs. The calculation of dilutive shares outstanding excludes securities that would have an antidilutive effect on EPS.
The following table sets forth the computation of basic and diluted EPS attributable to Dolby Laboratories, Inc. (in thousands, except per share amounts):
 Fiscal Quarter EndedFiscal Year-To-Date Ended
 March 31,
2023		April 1,
2022		March 31,
2023		April 1,
2022
Numerator:
Net income attributable to Dolby Laboratories, Inc.$95,696 $36,720 $175,071 $116,734 
Denominator:
Weighted-average shares outstanding—basic95,820 101,343 95,862 101,285 
Potential common shares from options to purchase common stock838 962 683 1,160 
Potential common shares from restricted stock units569 365 795 979 
Potential common shares from employee stock purchase plan71 37 52 53 
Weighted-average shares outstanding—diluted97,298 102,707 97,392 103,477 
Net income per share attributable to Dolby Laboratories, Inc.:
Basic$1.00 $0.36 $1.83 $1.15 
Diluted$0.98 $0.36 $1.80 $1.13 
Antidilutive awards excluded from calculation:
Stock options997 635 910 507 
Restricted stock units1,406 2,376 177 920 
Employee stock purchase plan— 15 5 —