Annual report pursuant to Section 13 and 15(d)

FINANCIAL STATEMENT COMPONENTS - Effects on Net Income of Amounts Reclassified from AOCI (Details)

v3.20.2
FINANCIAL STATEMENT COMPONENTS - Effects on Net Income of Amounts Reclassified from AOCI (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2018
Accumulated Other Comprehensive Income (Loss)                      
Revenues $ 1,459,593 $ 1,423,964 $ 1,509,453 $ 1,413,414 $ 1,258,435 $ 1,097,311 $ 1,119,898 $ 1,093,260 $ 5,806,424 $ 4,568,904 $ 4,036,701
Costs of revenues and operating expenses                 (2,449,561) (1,869,377) (1,446,041)
Interest expense                 160,274 124,604 114,376
Net income attributable to KLA $ 411,253 $ 78,452 $ 380,555 $ 346,525 $ 217,845 $ 192,728 $ 369,100 $ 395,944 1,216,785 1,175,617 802,265
Other expense (income), net                 2,678 (31,462) $ (30,482)
Unrealized Gains (Losses) on Defined Benefit Plans                      
Accumulated Other Comprehensive Income (Loss)                      
Amounts reclassified out of accumulated OCI                 1,200 1,100  
Reclassification out of accumulated other comprehensive income | Unrealized gains (losses) on cash flow hedges from foreign exchange and interest rate contracts                      
Accumulated Other Comprehensive Income (Loss)                      
Revenues                 4,086 4,329  
Costs of revenues and operating expenses                 (1,377) (739)  
Interest expense                 (637) 424  
Other expense (income), net                 0 4  
Net income attributable to KLA                 2,072 4,018  
Reclassification out of accumulated other comprehensive income | Unrealized gains (losses) on available-for-sale securities                      
Accumulated Other Comprehensive Income (Loss)                      
Other expense (income), net                 $ 297 $ (1,294)