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)

v3.26.1

GOODWILL AND PURCHASED INTANGIBLE ASSETS - Additional Information (Details) - USD ($)	3 Months Ended			9 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2026	Mar. 31, 2025	Jun. 30, 2025
Goodwill [Line Items]
Impairment of intangible assets				$ 0
Impairment charge			$ 8,700,000
Impairment of goodwill and purchased intangible assets	$ 0	$ 0		0	$ 239,100,000
Amortization expense	47,300,000	$ 53,900,000		145,800,000	$ 169,500,000
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%
PCB And Display \| Valuation, Market Approach
Goodwill [Line Items]
Reporting unit, percentage of fair value			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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