Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Operations (Parentheticals)

v2.4.1.9
Condensed Consolidated Statements of Operations (Parentheticals) (USD $)
3 Months Ended 9 Months Ended 0 Months Ended 1 Months Ended 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2015
Mar. 31, 2014
Nov. 19, 2014
Nov. 30, 2014
Dec. 31, 2014
Cash dividends declared per share (including a special cash dividend of $16.50 per share declared during the three months ended December 31, 2014) $ 0.5us-gaap_CommonStockDividendsPerShareDeclared $ 0.45us-gaap_CommonStockDividendsPerShareDeclared $ 18us-gaap_CommonStockDividendsPerShareDeclared $ 1.35us-gaap_CommonStockDividendsPerShareDeclared      
Special Cash Dividend              
Cash dividends declared per share (including a special cash dividend of $16.50 per share declared during the three months ended December 31, 2014)         $ 16.50us-gaap_CommonStockDividendsPerShareDeclared
/ us-gaap_DividendsAxis
= klac_SpecialCashDividendMember
$ 16.50us-gaap_CommonStockDividendsPerShareDeclared
/ us-gaap_DividendsAxis
= klac_SpecialCashDividendMember
$ 16.50us-gaap_CommonStockDividendsPerShareDeclared
/ us-gaap_DividendsAxis
= klac_SpecialCashDividendMember