Contractual Maturities of Investments in Debt Securities Held (Detail) $ in Thousands	Mar. 30, 2025 USD ($)
Schedule of Available-for-sale Securities
Due within one year, cost	$ 32,213
Due after 1 year through 5 years, cost	16,469
Due after 5 years through 10 years, cost	9,054
Due after 10 years, cost	35,434
Total, cost	93,170
Due within one year, fair market value	32,145
Due after 1 year through 5 years, fair market value	16,395
Due after 5 years through 10 years, fair market value	8,795
Due after 10 years, fair maket value	26,965
Total, fair market value	$ 84,300