XML 48 R38.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Fair Value Measurements (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Jun. 30, 2017
--- | --- | ---
Marketable securities: |  |  |  |  |
Total cash equivalents and marketable securities |  | $ 2,243,530 | [1] | $ 2,669,924 | [2]
Other current assets: |  |  |  |  |
Derivative assets |  | 4,474 |  | 5,931 |
Other non-current assets: |  |  |  |  |
Executive Deferred Savings Plan |  | 192,169 |  | 182,150 |
Total financial assets |  | 2,440,173 | [1] | 2,858,005 | [2]
Other current liabilities: |  |  |  |  |
Derivative liabilities |  | (415) |  | (1,275) |
Total financial liabilities |  | (415) |  | (1,275) |
Cash excluded from fair value measurement |  | 481,100 |  | 307,400 |
Time deposits excluded from fair value measurement | [3] | 33,581 |  | 39,389 |
Money market funds and other |  |  |  |  |
Cash equivalents: |  |  |  |  |
Cash equivalents |  | 569,287 |  | 616,039 |
U.S. Treasury securities |  |  |  |  |
Cash equivalents: |  |  |  |  |
Cash equivalents |  | 3,745 |  |  |
Marketable securities: |  |  |  |  |
Marketable securities |  | 404,983 |  | 373,299 |
Corporate debt securities |  |  |  |  |
Cash equivalents: |  |  |  |  |
Cash equivalents |  |  |  | 76,472 |
Marketable securities: |  |  |  |  |
Marketable securities |  | 914,358 |  | 1,042,723 |
Sovereign securities |  |  |  |  |
Cash equivalents: |  |  |  |  |
Cash equivalents |  |  |  | 10,050 |
Marketable securities: |  |  |  |  |
Marketable securities |  | 11,427 |  | 42,515 |
U.S. Government agency securities |  |  |  |  |
Cash equivalents: |  |  |  |  |
Cash equivalents |  |  |  | 117,417 |
Marketable securities: |  |  |  |  |
Marketable securities |  | 339,730 |  | 391,409 |
Level 1 |  |  |  |  |
Marketable securities: |  |  |  |  |
Total cash equivalents and marketable securities |  | 1,303,503 | [1] | 1,357,459 | [2]
Other current assets: |  |  |  |  |
Derivative assets |  | 0 |  | 0 |
Other non-current assets: |  |  |  |  |
Executive Deferred Savings Plan |  | 142,809 |  | 136,145 |
Total financial assets |  | 1,446,312 | [1] | 1,493,604 | [2]
Other current liabilities: |  |  |  |  |
Derivative liabilities |  | 0 |  | 0 |
Total financial liabilities |  | 0 |  | 0 |
Level 1 | Money market funds and other |  |  |  |  |
Cash equivalents: |  |  |  |  |
Cash equivalents |  | 569,287 |  | 616,039 |
Level 1 | U.S. Treasury securities |  |  |  |  |
Cash equivalents: |  |  |  |  |
Cash equivalents |  | 0 |  |  |
Marketable securities: |  |  |  |  |
Marketable securities |  | 394,486 |  | 373,299 |
Level 1 | Corporate debt securities |  |  |  |  |
Cash equivalents: |  |  |  |  |
Cash equivalents |  |  |  | 0 |
Marketable securities: |  |  |  |  |
Marketable securities |  | 0 |  | 0 |
Level 1 | Sovereign securities |  |  |  |  |
Cash equivalents: |  |  |  |  |
Cash equivalents |  |  |  | 0 |
Marketable securities: |  |  |  |  |
Marketable securities |  | 0 |  | 0 |
Level 1 | U.S. Government agency securities |  |  |  |  |
Cash equivalents: |  |  |  |  |
Cash equivalents |  |  |  | 0 |
Marketable securities: |  |  |  |  |
Marketable securities |  | 339,730 |  | 368,121 |
Level 2 |  |  |  |  |
Marketable securities: |  |  |  |  |
Total cash equivalents and marketable securities |  | 940,027 | [1] | 1,312,465 | [2]
Other current assets: |  |  |  |  |
Derivative assets |  | 4,474 |  | 5,931 |
Other non-current assets: |  |  |  |  |
Executive Deferred Savings Plan |  | 49,360 |  | 46,005 |
Total financial assets |  | 993,861 | [1] | 1,364,401 | [2]
Other current liabilities: |  |  |  |  |
Derivative liabilities |  | (415) |  | (1,275) |
Total financial liabilities |  | (415) |  | (1,275) |
Level 2 | Money market funds and other |  |  |  |  |
Cash equivalents: |  |  |  |  |
Cash equivalents |  | 0 |  | 0 |
Level 2 | U.S. Treasury securities |  |  |  |  |
Cash equivalents: |  |  |  |  |
Cash equivalents |  | 3,745 |  |  |
Marketable securities: |  |  |  |  |
Marketable securities |  | 10,497 |  | 0 |
Level 2 | Corporate debt securities |  |  |  |  |
Cash equivalents: |  |  |  |  |
Cash equivalents |  |  |  | 76,472 |
Marketable securities: |  |  |  |  |
Marketable securities |  | 914,358 |  | 1,042,723 |
Level 2 | Sovereign securities |  |  |  |  |
Cash equivalents: |  |  |  |  |
Cash equivalents |  |  |  | 10,050 |
Marketable securities: |  |  |  |  |
Marketable securities |  | 11,427 |  | 42,515 |
Level 2 | U.S. Government agency securities |  |  |  |  |
Cash equivalents: |  |  |  |  |
Cash equivalents |  |  |  | 117,417 |
Marketable securities: |  |  |  |  |
Marketable securities |  | $ 0 |  | $ 23,288 |
[1] | Excludes cash of $481.1 million held in operating accounts and time deposits of $33.6 million as of December 31, 2017.
[2] | Excludes cash of $307.4 million held in operating accounts and time deposits of $39.4 million as of June 30, 2017.
[3] | Time deposits excluded from fair value measurements.

X
- Definition Cash Equivalents and Marketable Securities Fair Value Disclosure + References No definition available. + Details
Name: | klac_CashEquivalentsAndMarketableSecuritiesFairValueDisclosure
Namespace Prefix: | klac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Executive Deferred Savings Plan + References No definition available. + Details
Name: | klac_ExecutiveDeferredSavingsPlan
Namespace Prefix: | klac_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Other assets, current [Abstract] + References No definition available. + Details
Name: | klac_OtherAssetsCurrentAbstract
Namespace Prefix: | klac_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a recurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References No definition available. + Details
Name: | us-gaap_AssetsFairValueDisclosureRecurring
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_Cash
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_CashAndCashEquivalentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
Name: | us-gaap_CashAndCashEquivalentsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13495-108611 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226008-175313 + Details
Name: | us-gaap_DerivativeAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13495-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 + Details
Name: | us-gaap_DerivativeLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition For banks and other depository institutions (including Federal Reserve Banks, if applicable): Interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.2) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=73530178&loc=d3e59706-112781 + Details
Name: | us-gaap_InterestBearingDepositsInBanks
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(12)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 35 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82895926&loc=d3e24584-111560 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=75030427&loc=d3e22054-111558 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_InvestmentsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
Name: | us-gaap_LiabilitiesFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_MarketableSecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_OtherAssetsNoncurrentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_OtherLiabilitiesCurrentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=klac_MoneyMarketBankDepositsAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_USTreasurySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_SovereignDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_USGovernmentAgenciesDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |