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Schedule of Fair Value of Financial Assets and Liabilities Measured on Recurring Basis (Detail) - USD ($)
$ in Thousands
Sep. 28, 2025
Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities $ 99,921 $ 116,021
U.S. Treasury Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 44,759 44,942
Corporate Debt Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 36,748 35,696
Debt Mutual Funds    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 14,766 8,951
Certificates of Deposit and Time Deposits    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 1,613 21,689
U.S. Government Agency Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 1,098 3,970
Non-U.S. Government Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 937 773
Fair Value, Measurements, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Total 427,375 723,787
Derivative assets 310 1,665
Total 427,685 725,452
Derivative liabilities 1,129 1,324
Total 1,129 1,324
Fair Value, Measurements, Recurring | Cash    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Cash and cash equivalents 180,730 261,176
Fair Value, Measurements, Recurring | Cash Equivalents    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Cash and cash equivalents 91,970 292,178
Fair Value, Measurements, Recurring | U.S. Treasury Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 44,759 44,942
Fair Value, Measurements, Recurring | Corporate Debt Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 36,748 35,696
Fair Value, Measurements, Recurring | Debt Mutual Funds    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 14,766 8,951
Fair Value, Measurements, Recurring | Certificates of Deposit and Time Deposits    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 1,613 21,689
Fair Value, Measurements, Recurring | U.S. Government Agency Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 1,098 3,970
Fair Value, Measurements, Recurring | Non-U.S. Government Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 937 773
Fair Value, Measurements, Recurring | Mutual Funds    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale equity securities 54,754 54,412
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Total 342,220 607,576
Derivative assets 0 0
Total 342,220 607,576
Derivative liabilities 0 0
Total 0 0
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | Cash    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Cash and cash equivalents 180,730 261,176
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | Cash Equivalents    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Cash and cash equivalents 91,970 283,037
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | U.S. Treasury Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 0 0
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | Corporate Debt Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 0 0
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | Debt Mutual Funds    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 14,766 8,951
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | Certificates of Deposit and Time Deposits    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 0 0
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | U.S. Government Agency Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 0 0
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | Non-U.S. Government Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 0 0
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | Mutual Funds    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale equity securities 54,754 54,412
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Total 85,155 116,211
Derivative assets 310 1,665
Total 85,465 117,876
Derivative liabilities 1,129 1,324
Total 1,129 1,324
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Cash    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Cash and cash equivalents 0 0
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Cash Equivalents    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Cash and cash equivalents 0 9,141
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | U.S. Treasury Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 44,759 44,942
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Corporate Debt Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 36,748 35,696
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Debt Mutual Funds    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 0
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Certificates of Deposit and Time Deposits    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 1,613 21,689
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | U.S. Government Agency Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 1,098 3,970
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Non-U.S. Government Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 937 773
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Mutual Funds    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale equity securities 0 0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Total 0 0
Derivative assets 0 0
Total 0 0
Derivative liabilities 0 0
Total 0 0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | Cash    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Cash and cash equivalents 0 0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | Cash Equivalents    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Cash and cash equivalents 0 0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | U.S. Treasury Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 0 0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | Corporate Debt Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 0 0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | Debt Mutual Funds    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 0 0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | Certificates of Deposit and Time Deposits    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 0 0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | U.S. Government Agency Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 0 0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | Non-U.S. Government Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale securities 0 0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | Mutual Funds    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis    
Available for sale equity securities $ 0 $ 0