Quarterly report pursuant to Section 13 or 15(d)

NET INCOME PER SHARE (Details)

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NET INCOME PER SHARE (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Sep. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
Mar. 31, 2022
Mar. 31, 2021
Numerator:                
Net income attributable to KLA $ 730,572 $ 717,444 $ 1,068,417 $ 567,496 $ 457,251 $ 420,567 $ 2,516,433 $ 1,445,314
Denominator:                
Weighted-average shares - basic, excluding unvested RSU's (in shares) 150,145     153,801     151,250 154,457
Effect of dilutive RSU's and options (in shares) 1,041     1,358     1,096 1,332
Weighted-average shares - diluted (in shares) 151,186     155,159     152,346 155,789
Basic net income per share attributable to KLA (in dollars per share) $ 4.87     $ 3.69     $ 16.64 $ 9.36
Diluted net income per share attributable to KLA (in dollars per share) $ 4.83     $ 3.66     $ 16.52 $ 9.28
Anti-dilutive securities excluded from the computation of diluted net income per share (in shares) 10     0     9 0