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Schedule of Available for Sale Marketable Securities (Detail) - USD ($) $ in Thousands | Oct. 01, 2023 | Dec. 31, 2022
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Schedule of Available-for-sale Securities |  |
Available-for-sale marketable securities, Cost | $ 154,129 | $ 123,839
Available-for-sale marketable securities, Unrealized Gain | 44 | 73
Available-for-sale marketable securities, Unrealized (Loss) | (12,692) | (11,041)
Marketable securities | 141,481 | 112,871
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses | 119,468 | 99,763
U.S. Treasury Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale marketable securities, Cost | 63,773 | 44,030
Available-for-sale marketable securities, Unrealized Gain | 0 | 0
Available-for-sale marketable securities, Unrealized (Loss) | (5,274) | (4,381)
Marketable securities | 58,499 | 39,649
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses | 57,794 | 39,649
Corporate Debt Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale marketable securities, Cost | 57,710 | 57,006
Available-for-sale marketable securities, Unrealized Gain | 0 | 3
Available-for-sale marketable securities, Unrealized (Loss) | (6,880) | (6,153)
Marketable securities | 50,830 | 50,856
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses | 50,830 | 50,667
Commercial Paper |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale marketable securities, Cost | 12,411 | 7,089
Available-for-sale marketable securities, Unrealized Gain | 44 | 70
Available-for-sale marketable securities, Unrealized (Loss) | (1) | 0
Marketable securities | 12,454 | 7,159
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses | 2,988 | 0
U.S. Government Agency Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale marketable securities, Cost | 4,823 | 6,442
Available-for-sale marketable securities, Unrealized Gain | 0 | 0
Available-for-sale marketable securities, Unrealized (Loss) | (49) | (90)
Marketable securities | 4,774 | 6,352
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses | 4,774 | 6,352
Debt Mutual Funds |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale marketable securities, Cost | 8,724 | 6,997
Available-for-sale marketable securities, Unrealized Gain | 0 | 0
Available-for-sale marketable securities, Unrealized (Loss) | (488) | (417)
Marketable securities | 8,236 | 6,580
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses | 3,082 | 3,095
Certificates of Deposit and Time Deposits |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale marketable securities, Cost | 6,688 | 1,740
Available-for-sale marketable securities, Unrealized Gain | 0 | 0
Available-for-sale marketable securities, Unrealized (Loss) | 0 | 0
Marketable securities | 6,688 | 1,740
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses | $ 0 | 0
Non-U.S. Government Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale marketable securities, Cost |  | 535
Available-for-sale marketable securities, Unrealized Gain |  | 0
Available-for-sale marketable securities, Unrealized (Loss) |  | 0
Marketable securities |  | 535
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses |  | $ 0

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