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Schedule of Available for Sale Marketable Securities (Detail) - USD ($) $ in Thousands | Apr. 03, 2022 | Dec. 31, 2021
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Schedule of Available-for-sale Securities |  |
Available-for-sale marketable securities, Cost | $ 368,154 | $ 334,077
Available-for-sale marketable securities, Unrealized Gain | 1,596 | 5,477
Available-for-sale marketable securities, Unrealized (Loss) | (3,637) | (718)
Available-for-sale marketable securities, Fair Market Value | 366,113 | 338,836
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses | 257,991 | 91,937
U.S. Treasury Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale marketable securities, Cost | 121,504 | 77,707
Available-for-sale marketable securities, Unrealized Gain | 8 | 551
Available-for-sale marketable securities, Unrealized (Loss) | (1,675) | (470)
Available-for-sale marketable securities, Fair Market Value | 119,837 | 77,789
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses | 114,043 | 46,435
Commercial Paper |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale marketable securities, Cost | 179,736 | 189,614
Available-for-sale marketable securities, Unrealized Gain | 3 | 15
Available-for-sale marketable securities, Unrealized (Loss) | (258) | (9)
Available-for-sale marketable securities, Fair Market Value | 179,481 | 189,620
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses | 106,951 | 22,784
Corporate Debt Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale marketable securities, Cost | 53,079 | 52,266
Available-for-sale marketable securities, Unrealized Gain | 1,585 | 4,863
Available-for-sale marketable securities, Unrealized (Loss) | (1,503) | (227)
Available-for-sale marketable securities, Fair Market Value | 53,161 | 56,901
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses | 32,283 | 19,422
Certificates of Deposit and Time Deposits |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale marketable securities, Cost | 1,312 | 1,356
Available-for-sale marketable securities, Fair Market Value | 1,312 | 1,356
U.S. Government Agency Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale marketable securities, Cost | 4,795 | 4,617
Available-for-sale marketable securities, Unrealized Gain |  | 5
Available-for-sale marketable securities, Unrealized (Loss) | (81) | (12)
Available-for-sale marketable securities, Fair Market Value | 4,714 | 4,610
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses | 4,714 | 3,296
Debt Mutual Funds |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale marketable securities, Cost | 7,150 | 7,928
Available-for-sale marketable securities, Unrealized Gain |  | 43
Available-for-sale marketable securities, Unrealized (Loss) | (120) |
Available-for-sale marketable securities, Fair Market Value | 7,030 | 7,971
Non-U.S. Government Securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale marketable securities, Cost | 578 | 589
Available-for-sale marketable securities, Fair Market Value | $ 578 | $ 589

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