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 6 Months Ended 0 Months Ended 1 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Nov. 19, 2014
Nov. 30, 2014
Cash dividends declared per share (in dollars per share) $ 17us-gaap_CommonStockDividendsPerShareDeclared $ 0.45us-gaap_CommonStockDividendsPerShareDeclared $ 17.5us-gaap_CommonStockDividendsPerShareDeclared $ 0.9us-gaap_CommonStockDividendsPerShareDeclared    
Special Cash Dividend            
Cash dividends declared per share (in dollars per share) $ 16.50us-gaap_CommonStockDividendsPerShareDeclared
/ us-gaap_DividendsAxis
= klac_SpecialCashDividendMember
$ 0us-gaap_CommonStockDividendsPerShareDeclared
/ us-gaap_DividendsAxis
= klac_SpecialCashDividendMember
  $ 0us-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