Quarterly report pursuant to Section 13 or 15(d)

Segment Reporting and Geographic Information (Details)

v2.4.1.9
Segment Reporting and Geographic Information (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Dec. 31, 2014
customer
Dec. 31, 2013
customer
Dec. 31, 2014
segment
customer
Dec. 31, 2013
customer
Jun. 30, 2014
Segment Reporting and Geographic Information          
Number of reportable segments     1us-gaap_NumberOfReportableSegments    
Revenues $ 676,357us-gaap_SalesRevenueNet $ 705,129us-gaap_SalesRevenueNet $ 1,319,258us-gaap_SalesRevenueNet $ 1,363,466us-gaap_SalesRevenueNet  
Segment percent of total revenues 100.00%klac_SegmentPercentOfTotalRevenue 100.00%klac_SegmentPercentOfTotalRevenue 100.00%klac_SegmentPercentOfTotalRevenue 100.00%klac_SegmentPercentOfTotalRevenue  
Number of customers with significant revenue 3klac_NumberOfCustomersWithSignificantRevenue 4klac_NumberOfCustomersWithSignificantRevenue 3klac_NumberOfCustomersWithSignificantRevenue 3klac_NumberOfCustomersWithSignificantRevenue  
Number of customers with significant accounts receivable balance 3klac_NumberOfCustomersWithSignificantAccountsReceivableBalance   3klac_NumberOfCustomersWithSignificantAccountsReceivableBalance    
Long-lived assets 323,353us-gaap_AssetsNoncurrent   323,353us-gaap_AssetsNoncurrent   330,263us-gaap_AssetsNoncurrent
Customer One          
Segment Reporting and Geographic Information          
Segment percent of total revenues 16.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerOneMember 		15.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerOneMember 		13.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerOneMember 		18.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerOneMember 		 
Customer Two          
Segment Reporting and Geographic Information          
Segment percent of total revenues 14.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerTwoMember 		15.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerTwoMember 		13.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerTwoMember 		12.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerTwoMember 		 
Customer Three          
Segment Reporting and Geographic Information          
Segment percent of total revenues 13.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerThreeMember 		12.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerThreeMember 		12.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerThreeMember 		11.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerThreeMember 		 
Customer Four          
Segment Reporting and Geographic Information          
Segment percent of total revenues   11.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerFourMember 		     
Defect inspection          
Segment Reporting and Geographic Information          
Revenues 378,374us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_DefectInspectionMember 		394,702us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_DefectInspectionMember 		751,361us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_DefectInspectionMember 		737,865us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_DefectInspectionMember 		 
Segment percent of total revenues 56.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_DefectInspectionMember 		56.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_DefectInspectionMember 		57.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_DefectInspectionMember 		55.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_DefectInspectionMember 		 
Metrology          
Segment Reporting and Geographic Information          
Revenues 94,723us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_MetrologyMember 		130,012us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_MetrologyMember 		189,596us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_MetrologyMember 		262,994us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_MetrologyMember 		 
Segment percent of total revenues 14.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_MetrologyMember 		18.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_MetrologyMember 		14.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_MetrologyMember 		19.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_MetrologyMember 		 
Service          
Segment Reporting and Geographic Information          
Revenues 172,473us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_ServiceMember 		160,946us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_ServiceMember 		338,776us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_ServiceMember 		317,543us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_ServiceMember 		 
Segment percent of total revenues 25.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_ServiceMember 		23.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_ServiceMember 		26.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_ServiceMember 		23.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_ServiceMember 		 
Other          
Segment Reporting and Geographic Information          
Revenues 30,787us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_OtherRevenueMember 		19,469us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_OtherRevenueMember 		39,525us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_OtherRevenueMember 		45,064us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_OtherRevenueMember 		 
Segment percent of total revenues 5.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_OtherRevenueMember 		3.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_OtherRevenueMember 		3.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_OtherRevenueMember 		3.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_OtherRevenueMember 		 
North America          
Segment Reporting and Geographic Information          
Revenues 236,230us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= us-gaap_NorthAmericaMember 		148,233us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= us-gaap_NorthAmericaMember 		431,600us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= us-gaap_NorthAmericaMember 		327,628us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= us-gaap_NorthAmericaMember 		 
Segment percent of total revenues 35.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= us-gaap_NorthAmericaMember 		21.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= us-gaap_NorthAmericaMember 		33.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= us-gaap_NorthAmericaMember 		24.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= us-gaap_NorthAmericaMember 		 
Taiwan          
Segment Reporting and Geographic Information          
Revenues 151,676us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_TW 		148,825us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_TW 		278,253us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_TW 		266,116us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_TW 		 
Segment percent of total revenues 23.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_TW 		21.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_TW 		21.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_TW 		20.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_TW 		 
Japan          
Segment Reporting and Geographic Information          
Revenues 84,007us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_JP 		64,223us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_JP 		196,231us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_JP 		145,635us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_JP 		 
Segment percent of total revenues 12.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_JP 		9.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_JP 		15.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_JP 		11.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_JP 		 
Europe and Israel          
Segment Reporting and Geographic Information          
Revenues 36,533us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= klac_EuropeAndIsraelMember 		70,295us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= klac_EuropeAndIsraelMember 		91,709us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= klac_EuropeAndIsraelMember 		191,782us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= klac_EuropeAndIsraelMember 		 
Segment percent of total revenues 5.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= klac_EuropeAndIsraelMember 		10.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= klac_EuropeAndIsraelMember 		7.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= klac_EuropeAndIsraelMember 		14.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= klac_EuropeAndIsraelMember 		 
Korea          
Segment Reporting and Geographic Information          
Revenues 106,941us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_KR 		152,750us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_KR 		176,228us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_KR 		230,027us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_KR 		 
Segment percent of total revenues 16.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_KR 		22.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_KR 		13.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_KR 		17.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_KR 		 
United States          
Segment Reporting and Geographic Information          
Long-lived assets 213,622us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= country_US 		  213,622us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= country_US 		  219,280us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= country_US
Europe          
Segment Reporting and Geographic Information          
Long-lived assets 18,841us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= us-gaap_EuropeMember 		  18,841us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= us-gaap_EuropeMember 		  19,527us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= us-gaap_EuropeMember
Singapore          
Segment Reporting and Geographic Information          
Long-lived assets 48,231us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= country_SG 		  48,231us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= country_SG 		  48,938us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= country_SG
Israel          
Segment Reporting and Geographic Information          
Long-lived assets 34,060us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= country_IL 		  34,060us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= country_IL 		  33,388us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= country_IL
Rest of Asia          
Segment Reporting and Geographic Information          
Revenues 60,970us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember 		120,803us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember 		145,237us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember 		202,278us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember 		 
Segment percent of total revenues 9.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember 		17.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember 		11.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember 		14.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember 		 
Long-lived assets $ 8,599us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember 		  $ 8,599us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember 		  $ 9,130us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember