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v3.24.3

Marketable Securities (Tables) | 9 Months Ended
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Sep. 28, 2024
Investments, Debt and Equity Securities [Abstract] |
Schedule of Marketable Securities Classified as Available-for-sale Securities | Marketable securities classified as available-for-sale securities are summarized below:
|  | Available-For-Sale Securities as of September 28, 2024 |
|  | Fair Value Level |  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
U.S. Treasury securities |  | Level 2 |  | $ | 4,869 |  |  | $ | 20 |  |  | $ | — |  |  | $ | 4,889 |
Agency securities |  | Level 2 |  |  | 25,955 |  |  |  | 145 |  |  |  | (333 | ) |  |  | 25,767 |
Mortgage-backed securities |  | Level 2 |  |  | 34,910 |  |  |  | — |  |  |  | (3,605 | ) |  |  | 31,305 |
Corporate debt securities |  | Level 2 |  |  | 1,203,805 |  |  |  | 9,573 |  |  |  | (21,262 | ) |  |  | 1,192,116 |
Municipal securities |  | Level 2 |  |  | 274,323 |  |  |  | 508 |  |  |  | (10,435 | ) |  |  | 264,396 |
Other |  | Level 2 |  |  | 2,874 |  |  |  | — |  |  |  | (114 | ) |  |  | 2,760 |
Total |  |  |  | $ | 1,546,736 |  |  | $ | 10,246 |  |  | $ | (35,749 | ) |  | $ | 1,521,233 |
|  | Available-For-Sale Securities as of December 30, 2023 |
|  | Fair Value Level |  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
U.S. Treasury securities |  | Level 2 |  | $ | 2,971 |  |  | $ | 1 |  |  | $ | — |  |  | $ | 2,972 |
Agency securities |  | Level 2 |  |  | 23,692 |  |  |  | 32 |  |  |  | (585 | ) |  |  | 23,139 |
Mortgage-backed securities |  | Level 2 |  |  | 38,743 |  |  |  | — |  |  |  | (4,731 | ) |  |  | 34,012 |
Corporate debt securities |  | Level 2 |  |  | 1,104,834 |  |  |  | 1,680 |  |  |  | (46,073 | ) |  |  | 1,060,441 |
Municipal securities |  | Level 2 |  |  | 294,240 |  |  |  | 98 |  |  |  | (18,430 | ) |  |  | 275,908 |
Other |  | Level 2 |  |  | 3,760 |  |  |  | — |  |  |  | (423 | ) |  |  | 3,337 |
Total |  |  |  | $ | 1,468,240 |  |  | $ | 1,811 |  |  | $ | (70,242 | ) |  | $ | 1,399,809 |
Schedule of Gross Unrealized Losses and Fair Value by Major Security Type | The following tables display additional information regarding gross unrealized losses and fair value by major security type for available-for-sale securities in an unrealized loss position as of September 28, 2024 and December 30, 2023.
|  | As of September 28, 2024 |
|  | Less than 12 Consecutive Months |  |  | 12 Consecutive Months or Longer |  |  | Total |
|  | Gross Unrealized Losses |  |  | Fair Value |  |  | Gross Unrealized Losses |  |  | Fair Value |  |  | Gross Unrealized Losses |  |  | Fair Value |
Agency securities |  | $ | — |  |  | $ | 1,000 |  |  | $ | (333 | ) |  | $ | 6,667 |  |  | $ | (333 | ) |  | $ | 7,667 |
Mortgage-backed securities |  |  | — |  |  |  | — |  |  |  | (3,605 | ) |  |  | 31,305 |  |  |  | (3,605 | ) |  |  | 31,305 |
Corporate debt securities |  |  | (127 | ) |  |  | 36,935 |  |  |  | (21,135 | ) |  |  | 688,156 |  |  |  | (21,262 | ) |  |  | 725,091 |
Municipal securities |  |  | — |  |  |  | — |  |  |  | (10,435 | ) |  |  | 235,171 |  |  |  | (10,435 | ) |  |  | 235,171 |
Other |  |  | — |  |  |  | — |  |  |  | (114 | ) |  |  | 2,760 |  |  |  | (114 | ) |  |  | 2,760 |
Total |  | $ | (127 | ) |  | $ | 37,935 |  |  | $ | (35,622 | ) |  | $ | 964,059 |  |  | $ | (35,749 | ) |  | $ | 1,001,994 |
|  | As of December 30, 2023 |
|  | Less than 12 Consecutive Months |  |  | 12 Consecutive Months or Longer |  |  | Total |
|  | Gross Unrealized Losses |  |  | Fair Value |  |  | Gross Unrealized Losses |  |  | Fair Value |  |  | Gross Unrealized Losses |  |  | Fair Value |
Agency securities |  | $ | (31 | ) |  | $ | 10,923 |  |  | $ | (554 | ) |  | $ | 6,446 |  |  | $ | (585 | ) |  | $ | 17,369 |
Mortgage-backed securities |  |  | — |  |  |  | — |  |  |  | (4,731 | ) |  |  | 34,012 |  |  |  | (4,731 | ) |  |  | 34,012 |
Corporate debt securities |  |  | (702 | ) |  |  | 64,637 |  |  |  | (45,371 | ) |  |  | 889,785 |  |  |  | (46,073 | ) |  |  | 954,422 |
Municipal securities |  |  | (32 | ) |  |  | 2,654 |  |  |  | (18,398 | ) |  |  | 261,651 |  |  |  | (18,430 | ) |  |  | 264,305 |
Other |  |  | — |  |  |  | — |  |  |  | (423 | ) |  |  | 3,337 |  |  |  | (423 | ) |  |  | 3,337 |
Total |  | $ | (765 | ) |  | $ | 78,214 |  |  | $ | (69,477 | ) |  | $ | 1,195,231 |  |  | $ | (70,242 | ) |  | $ | 1,273,445 |
Schedule of Amortized Cost and Estimated Fair Value of Marketable Securities by Maturity | The amortized cost and fair value of marketable securities at September 28, 2024, by maturity, are shown below.
|  | Amortized Cost |  |  | Fair Value |
Due in one year or less |  | $ | 421,840 |  |  | $ | 414,701 |
Due after one year through five years |  |  | 1,108,518 |  |  |  | 1,092,026 |
Due after five years through ten years |  |  | 7,588 |  |  |  | 7,001 |
Due after ten years |  |  | 8,790 |  |  |  | 7,505 |
Total |  | $ | 1,546,736 |  |  | $ | 1,521,233 |

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