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NET INCOME PER SHARE
 6 Months Ended
Dec. 31, 2020
Earnings Per Share [Abstract]  
NET INCOME PER SHARE NET INCOME PER SHARE
Basic net income per share is calculated 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 is calculated by using the weighted-average number of common shares outstanding during the period, increased to include the number of additional shares of common stock that would have been outstanding if the shares of common stock underlying our outstanding dilutive restricted stock units had been issued. The dilutive effect of outstanding restricted stock units is reflected in diluted net income per share by application of the treasury stock method.
The following table sets forth the computation of basic and diluted net income per share attributable to KLA:
Three Months EndedSix Months Ended
(In thousands, except per share amounts)December 31,December 31,
2020201920202019
Numerator:
Net income attributable to KLA$457,251 $380,555 $877,818 $727,080 
Denominator:
Weighted-average shares - basic, excluding unvested restricted stock units154,273 157,290 154,777 157,994 
Effect of dilutive restricted stock units and options1,287 1,330 1,280 1,320 
Weighted-average shares - diluted155,560 158,620 156,057 159,314 
Basic net income per share attributable to KLA$2.96 $2.42 $5.67 $4.60 
Diluted net income per share attributable to KLA$2.94 $2.40 $5.62 $4.56 
Anti-dilutive securities excluded from the computation of diluted net income per share— 43 — 25