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 6 Months Ended
Dec. 31, 2021
Sep. 30, 2021
Dec. 31, 2020
Sep. 30, 2020
Dec. 31, 2021
Dec. 31, 2020
Numerator:            
Net income attributable to KLA $ 717,444 $ 1,068,417 $ 457,251 $ 420,567 $ 1,785,861 $ 877,818
Denominator:            
Weighted-average shares - basic, excluding unvested RSU's (in shares) 151,251   154,273   151,791 154,777
Effect of dilutive RSU's and options (in shares) 1,080   1,287   1,095 1,280
Weighted-average shares - diluted (in shares) 152,331   155,560   152,886 156,057
Basic net income per share attributable to KLA (in dollars per share) $ 4.74   $ 2.96   $ 11.77 $ 5.67
Diluted net income per share attributable to KLA (in dollars per share) $ 4.71   $ 2.94   $ 11.68 $ 5.62
Anti-dilutive securities excluded from the computation of diluted net income per share (in shares) 0   0   5 0