Equity and Long-Term Incentive Compensation Plans - Compensation Expense (Details) (USD $) In Thousands, unless otherwise specified
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3 Months Ended |
9 Months Ended |
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Mar. 31, 2015 |
Mar. 31, 2014 |
Mar. 31, 2015 |
Mar. 31, 2014 |
Jun. 30, 2014 |
Stock-based compensation expense |
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Stock-based compensation expense |
$ 12,767us-gaap_AllocatedShareBasedCompensationExpense |
$ 12,723us-gaap_AllocatedShareBasedCompensationExpense |
$ 43,098us-gaap_AllocatedShareBasedCompensationExpense |
$ 46,812us-gaap_AllocatedShareBasedCompensationExpense |
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Stock-based compensation capitalized as inventory |
3,294klac_StockBasedCompensationCapitalizedAsInventory |
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3,294klac_StockBasedCompensationCapitalizedAsInventory |
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8,278klac_StockBasedCompensationCapitalizedAsInventory |
Costs of revenues |
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Stock-based compensation expense |
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Stock-based compensation expense |
1,642us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = us-gaap_CostOfSalesMember |
1,688us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = us-gaap_CostOfSalesMember |
5,842us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = us-gaap_CostOfSalesMember |
7,186us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = us-gaap_CostOfSalesMember |
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Engineering, research and development |
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Stock-based compensation expense |
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Stock-based compensation expense |
2,941us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = us-gaap_ResearchAndDevelopmentExpenseMember |
3,512us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = us-gaap_ResearchAndDevelopmentExpenseMember |
10,016us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = us-gaap_ResearchAndDevelopmentExpenseMember |
12,797us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = us-gaap_ResearchAndDevelopmentExpenseMember |
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Selling, general and administrative |
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Stock-based compensation expense |
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Stock-based compensation expense |
$ 8,184us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = us-gaap_SellingGeneralAndAdministrativeExpensesMember |
$ 7,523us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = us-gaap_SellingGeneralAndAdministrativeExpensesMember |
$ 27,240us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = us-gaap_SellingGeneralAndAdministrativeExpensesMember |
$ 26,829us-gaap_AllocatedShareBasedCompensationExpense / us-gaap_IncomeStatementLocationAxis = us-gaap_SellingGeneralAndAdministrativeExpensesMember |
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