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Marketable Securities - Contractual Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jun. 30, 2019
Amortized Cost
Due within one year	$ 386,442
Due after one year through three years	350,372
Marketable securities, Amortized Cost	736,814	$ 724,449
Fair Value
Due within one year	386,617
Due after one year through three years	351,041
Marketable securities, Fair value	$ 737,658	$ 723,391

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- Definition

Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Three Years, Amortized Cost

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), maturing in next fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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