XML 134 R120.htm IDEA: XBRL DOCUMENT
v3.20.2

SEGMENT REPORTING AND GEOGRAPHIC INFORMATION - Additional Information (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2020 USD ($) | Jun. 30, 2020 segment Installment | Jun. 30, 2019 Installment | Jun. 30, 2018 Installment
Segment Reporting and Geographic Information |  |  |  |
Number of reportable segments |  | 4 |  |
Number of operating segments |  | 2 |  |
Consideration from sale of core assets | $ | $ 1.7 |  |  |
Number of customers with significant revenue | Installment |  | 2 | 1 | 1
Segment percent of total revenues |  | 100.00% | 100.00% | 100.00%
Customer One |  |  |  |
Segment Reporting and Geographic Information |  |  |  |
Segment percent of total revenues |  | 20.00% | 15.00% | 21.00%
Customer Two |  |  |  |
Segment Reporting and Geographic Information |  |  |  |
Segment percent of total revenues |  | 14.00% |  |

X
- Definition Total number of significant external customers who individually generate revenue that accounts for 10 percent or more of total revenues + References No definition available. + Details
Name: | klac_NumberOfCustomersWithSignificantRevenue
Namespace Prefix: | klac_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Segment Percent Of Total Revenue + References No definition available. + Details
Name: | klac_SegmentPercentOfTotalRevenue
Namespace Prefix: | klac_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599 + Details
Name: | us-gaap_NumberOfOperatingSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599 + Details
Name: | us-gaap_NumberOfReportableSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585 + Details
Name: | us-gaap_ProceedsFromSaleOfProductiveAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_MajorCustomersAxis=klac_CustomerOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=klac_CustomerTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |