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 9 Months Ended
Mar. 31, 2015
customer
Mar. 31, 2014
customer
Mar. 31, 2015
segment
customer
Mar. 31, 2014
customer
Jun. 30, 2014
customer
Segment Reporting and Geographic Information          
Number of reportable segments     1us-gaap_NumberOfReportableSegments    
Revenues $ 738,459us-gaap_SalesRevenueNet $ 831,599us-gaap_SalesRevenueNet $ 2,057,717us-gaap_SalesRevenueNet $ 2,195,065us-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 3klac_NumberOfCustomersWithSignificantRevenue 3klac_NumberOfCustomersWithSignificantRevenue 3klac_NumberOfCustomersWithSignificantRevenue  
Number of customers with significant accounts receivable balance 2klac_NumberOfCustomersWithSignificantAccountsReceivableBalance   2klac_NumberOfCustomersWithSignificantAccountsReceivableBalance   2klac_NumberOfCustomersWithSignificantAccountsReceivableBalance
Long-lived assets 321,081us-gaap_AssetsNoncurrent   321,081us-gaap_AssetsNoncurrent   330,263us-gaap_AssetsNoncurrent
Customer One          
Segment Reporting and Geographic Information          
Segment percent of total revenues 18.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerOneMember 		25.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerOneMember 		15.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerOneMember 		17.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerOneMember 		 
Customer Two          
Segment Reporting and Geographic Information          
Segment percent of total revenues 15.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerTwoMember 		17.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerTwoMember 		14.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerTwoMember 		16.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerTwoMember 		 
Customer Three          
Segment Reporting and Geographic Information          
Segment percent of total revenues 14.00%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 		13.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_MajorCustomersAxis
= klac_CustomerThreeMember 		 
Defect inspection          
Segment Reporting and Geographic Information          
Revenues 399,014us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_DefectInspectionMember 		497,918us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_DefectInspectionMember 		1,150,375us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_DefectInspectionMember 		1,235,783us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_DefectInspectionMember 		 
Segment percent of total revenues 54.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_DefectInspectionMember 		60.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_DefectInspectionMember 		56.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_DefectInspectionMember 		56.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_DefectInspectionMember 		 
Metrology          
Segment Reporting and Geographic Information          
Revenues 138,781us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_MetrologyMember 		159,662us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_MetrologyMember 		328,377us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_MetrologyMember 		422,656us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_MetrologyMember 		 
Segment percent of total revenues 19.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_MetrologyMember 		19.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_MetrologyMember 		16.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_MetrologyMember 		19.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_MetrologyMember 		 
Service          
Segment Reporting and Geographic Information          
Revenues 173,278us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_ServiceMember 		161,516us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_ServiceMember 		512,054us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_ServiceMember 		479,059us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_ServiceMember 		 
Segment percent of total revenues 23.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_ServiceMember 		19.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_ServiceMember 		25.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_ServiceMember 		22.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_ServiceMember 		 
Other          
Segment Reporting and Geographic Information          
Revenues 27,386us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_OtherRevenueMember 		12,503us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_OtherRevenueMember 		66,911us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_OtherRevenueMember 		57,567us-gaap_SalesRevenueNet
/ us-gaap_ProductOrServiceAxis
= klac_OtherRevenueMember 		 
Segment percent of total revenues 4.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_ProductOrServiceAxis
= klac_OtherRevenueMember 		2.00%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 178,207us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= us-gaap_NorthAmericaMember 		176,560us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= us-gaap_NorthAmericaMember 		609,807us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= us-gaap_NorthAmericaMember 		504,188us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= us-gaap_NorthAmericaMember 		 
Segment percent of total revenues 24.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= us-gaap_NorthAmericaMember 		21.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= us-gaap_NorthAmericaMember 		29.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= us-gaap_NorthAmericaMember 		23.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= us-gaap_NorthAmericaMember 		 
Taiwan          
Segment Reporting and Geographic Information          
Revenues 178,333us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_TW 		242,631us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_TW 		456,586us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_TW 		508,747us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_TW 		 
Segment percent of total revenues 24.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_TW 		29.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_TW 		22.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_TW 		23.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_TW 		 
Japan          
Segment Reporting and Geographic Information          
Revenues 131,022us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_JP 		99,887us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_JP 		327,253us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_JP 		245,522us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_JP 		 
Segment percent of total revenues 18.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_JP 		12.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_JP 		16.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_JP 		11.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_JP 		 
Europe & Israel          
Segment Reporting and Geographic Information          
Revenues 45,396us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= klac_EuropeAndIsraelMember 		45,722us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= klac_EuropeAndIsraelMember 		137,105us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= klac_EuropeAndIsraelMember 		237,504us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= klac_EuropeAndIsraelMember 		 
Segment percent of total revenues 6.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= klac_EuropeAndIsraelMember 		6.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= klac_EuropeAndIsraelMember 		7.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= klac_EuropeAndIsraelMember 		11.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= klac_EuropeAndIsraelMember 		 
Korea          
Segment Reporting and Geographic Information          
Revenues 147,753us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_KR 		80,454us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_KR 		323,981us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_KR 		310,481us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_KR 		 
Segment percent of total revenues 20.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_KR 		10.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_KR 		16.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_KR 		14.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= country_KR 		 
United States          
Segment Reporting and Geographic Information          
Long-lived assets 214,598us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= country_US 		  214,598us-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 16,753us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= us-gaap_EuropeMember 		  16,753us-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 46,898us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= country_SG 		  46,898us-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 34,158us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= country_IL 		  34,158us-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 57,748us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember 		186,345us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember 		202,985us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember 		388,623us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember 		 
Segment percent of total revenues 8.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember 		22.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember 		10.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember 		18.00%klac_SegmentPercentOfTotalRevenue
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember 		 
Long-lived assets $ 8,674us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember 		  $ 8,674us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember 		  $ 9,130us-gaap_AssetsNoncurrent
/ us-gaap_StatementGeographicalAxis
= klac_RestOfAsiaMember