Quarterly report pursuant to Section 13 or 15(d)

Uncategorized Items - klac-20190331.xml

v3.19.1
Label Element Value
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1 $ 1,599,371,000
Common Stock Including Additional Paid in Capital [Member]  
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1 617,999,000
Retained Earnings [Member]  
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1 1,046,150,000
Parent [Member]  
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1 $ 1,599,371,000
Common Stock [Member]  
Shares, Outstanding us-gaap_SharesOutstanding 156,048,000
Noncontrolling Interest [Member]  
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1 $ 0
AOCI Attributable to Parent [Member]  
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1 (64,778,000)
Accounting Standards Update 2014-09 [Member]  
Cumulative Effect of New Accounting Principle in Period of Adoption us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption (21,140,000)
Accounting Standards Update 2014-09 [Member] | Retained Earnings [Member]  
Cumulative Effect of New Accounting Principle in Period of Adoption us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption (21,215,000)
Accounting Standards Update 2014-09 [Member] | Parent [Member]  
Cumulative Effect of New Accounting Principle in Period of Adoption us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption (21,140,000)
Accounting Standards Update 2014-09 [Member] | AOCI Attributable to Parent [Member]  
Cumulative Effect of New Accounting Principle in Period of Adoption us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption 75,000
Accounting Standards Update 2018-02 [Member] | Retained Earnings [Member]  
Cumulative Effect of New Accounting Principle in Period of Adoption us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption 10,920,000
Accounting Standards Update 2018-02 [Member] | AOCI Attributable to Parent [Member]  
Cumulative Effect of New Accounting Principle in Period of Adoption us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption $ (10,920,000)