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Investments - Available For Sale Securities - Amortized Cost and Fair Value (Details) $ in Thousands	Aug. 01, 2020 USD ($)
Amortized cost of available-for-sale securities by contractual maturity
Due within one year	$ 71,322
Due after one year through five years	15,000
Total	86,322
Fair value of available-for-sale securities by contractual maturity
Due within one year	71,334
Due after one year through five years	15,004
Total	$ 86,338

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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), with single maturity date and allocated without single maturity date, maturing in next rolling fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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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), with single maturity date and allocated without single maturity date, maturing in next rolling fiscal year through fifth year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

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