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Net Income per Share
 9 Months Ended
Jul. 31, 2022
Earnings Per Share [Abstract]  
Net Income per Share Net Income Per ShareWe compute basic net income per share by dividing net income available to common stockholders by the weighted average number of common shares outstanding during the period. Diluted net income per share reflects the dilution from potential common shares outstanding such as stock options and unvested RSUs and awards during the period using the treasury stock method.
The table below reconciled the weighted average common shares used to calculate basic net income per share with the weighted average common shares used to calculate diluted net income per share:
 Three Months Ended 
 July 31,		Nine Months Ended 
 July 31,
 2022202120222021
 (in thousands, except per share amounts)
Numerator:
Net income attributed to Synopsys$222,626 $198,646 $831,094 $556,069 
Denominator:
Weighted average common shares for basic net income per share152,938 152,635 153,082 152,619 
Dilutive effect of common share equivalents2,868 4,272 3,463 4,539 
Weighted average common shares for diluted net income per share155,806 156,907 156,545 157,158 
Net income per share attributed to Synopsys:
Basic$1.46 $1.30 $5.43 $3.64 
Diluted$1.43 $1.27 $5.31 $3.54 
Anti-dilutive employee stock-based awards excluded336 355 268 405