Contractual Maturities of Investments in Debt Securities Held (Detail) $ in Thousands	Sep. 29, 2019 USD ($)
Schedule of Available-for-sale Securities
Due within one year, cost	$ 342,234
Due after 1 year through 5 years, cost	16,609
Due after 5 years through 10 years, cost	15,002
Due after 10 years, cost	37,192
Total, cost	411,037
Due within one year, fair market value	342,538
Due after 1 year through 5 years, fair market value	16,718
Due after 5 years through 10 years, fair market value	15,297
Due after 10 years, fair maket value	41,574
Total, fair market value	$ 416,127

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 sixth fiscal year through tenth 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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