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Net Income (Loss) Per Share
 6 Months Ended
Apr. 30, 2025
Earnings Per Share [Abstract]  
Net Income (Loss) Per Share Net Income (Loss) Per Share
We compute basic net income (loss) 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 (loss) 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 reconciles the weighted average common shares used to calculate basic net income (loss) per share with the weighted average common shares used to calculate diluted net income (loss) per share:
 Three Months Ended 
 April 30,		Six Months Ended 
 April 30,
 2025202420252024
 (in thousands, except per share amounts)
Numerator:
Net income from continuing operations attributed to Synopsys
$349,232 $299,111 $644,915 $736,561 
Net income (loss) from discontinued operations attributed to Synopsys(3,900)(7,004)(3,900)4,658 
Net income attributed to Synopsys$345,332 $292,107 $641,015 $741,219 
Denominator:
Weighted average common shares for basic net income per share154,927 152,971 154,666 152,629 
Dilutive effect of common share equivalents from equity-based compensation1,161 2,799 1,552 2,981 
Weighted average common shares for diluted net income per share156,088 155,770 156,218 155,610 
Net income (loss) per share attributed to Synopsys - basic:
Continuing operations
$2.25 $1.96 $4.17 $4.83 
Discontinued operations
$(0.02)$(0.05)$(0.03)$0.03 
Basic net income per share
$2.23 $1.91 $4.14 $4.86 
Net income (loss) per share attributed to Synopsys - diluted:
Continuing operations
$2.24 $1.92 $4.13 $4.73 
Discontinued operations
$(0.03)$(0.04)$(0.03)$0.03 
Diluted net income per share
$2.21 $1.88 $4.10 $4.76 
Anti-dilutive employee stock-based awards excluded1,897 208 413 202