KLA Corporation Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 13 or 15(d)]

Cover
- Cover Page
Financial Statements
Notes to Financial Statements
Accounting Policies
- BASIS OF PRESENTATION (Policies)
Notes Tables
Notes Details

GOODWILL AND PURCHASED INTANGIBLE ASSETS - Additional Information (Details)

v3.25.4

GOODWILL AND PURCHASED INTANGIBLE ASSETS - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024	Jun. 30, 2025
Goodwill [Line Items]
Goodwill impairment			$ 0
Impairment of intangible assets			0
Impairment charge		$ 8,700,000
Impairment of goodwill and purchased intangible assets	$ 0	239,100,000	0	$ 239,100,000
Amortization expense	$ 49,300,000	58,900,000	$ 98,600,000	$ 115,600,000
PCB
Goodwill [Line Items]
Goodwill impairment		230,400,000
PCB And Display \| Valuation, Income Approach
Goodwill [Line Items]
Reporting unit, percentage of fair value	75.00%		75.00%
PCB And Display \| Valuation, Market Approach
Goodwill [Line Items]
Reporting unit, percentage of fair value	25.00%		25.00%
Semiconductor Process Control
Goodwill [Line Items]
Non-deductible impairment of goodwill	$ 277,600,000		$ 277,600,000		$ 277,600,000
PCB And Component Inspection
Goodwill [Line Items]
Non-deductible impairment of goodwill	$ 70,500,000		$ 70,500,000		$ 70,500,000
Specialty Semiconductor Process
Goodwill [Line Items]
Goodwill impairment		$ 0

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