Quarterly report pursuant to Section 13 or 15(d)

Business Combinations - Pro Forma Information (Details)

v3.19.1
Business Combinations - Pro Forma Information (Details) - Orbotech and three privately-held companies - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2019
Mar. 31, 2018
Business Acquisition        
Revenues $ 1,160,678 $ 1,271,326 $ 4,165,268 $ 3,730,272
Net income attributable to KLA-Tencor $ 192,577 $ 293,593 $ 1,033,653 $ 260,537