KLA Corporation Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Marketable Securities - Continuous Unrealized Loss Position (Details)

Marketable Securities - Continuous Unrealized Loss Position (Details)
$ in Thousands

Sep. 30, 2017

USD ($)

Investments in an Unrealized Loss Position

$ 1,297,066

Gross Unrealized Losses, less than 12 months

(4,628)

^[1]

Gross Unrealized Losses, 12 months or more

1,500

Corporate debt securities

Investments in an Unrealized Loss Position

581,581

Gross Unrealized Losses, less than 12 months

(1,530)

^[1]

U.S. Government agency securities

Investments in an Unrealized Loss Position

341,545

Gross Unrealized Losses, less than 12 months

(1,586)

^[1]

U.S. Treasury securities

Investments in an Unrealized Loss Position

361,406

Gross Unrealized Losses, less than 12 months

(1,484)

^[1]

Sovereign securities

Investments in an Unrealized Loss Position

12,534

Gross Unrealized Losses, less than 12 months

$ (28)

^[1]

[1]	As of September 30, 2017, the amount of total gross unrealized losses related to investments that had been in a continuous loss position for 12 months or more was $1.5 million.