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FAIR VALUE - Asset Measured at Fair Value (Details) - USD ($) $ in Thousands | Jun. 28, 2025 | Dec. 28, 2024
--- | --- | ---
Fixed Income | Restricted Investments |  |
Fair Value |  |
Investments at fair value | $ 42,000 | $ 38,700
Money market funds | Cash and Cash Equivalents |  |
Fair Value |  |
Investments at fair value | 154,100 | 377,400
Money market funds | Restricted Investments |  |
Fair Value |  |
Investments at fair value | 2,300 | 400
Mutual funds, equity and alternative investments | Investments |  |
Fair Value |  |
Investments at fair value | 31,900 | 31,000
Mutual funds, equity and alternative investments | Other Assets |  |
Fair Value |  |
Investments at fair value | 30,500 | 26,000
Money market and mutual funds | Other Assets |  |
Fair Value |  |
Investments at fair value | 200 | 200
Prices with Unobservable Inputs (Level 3) | Equity | Other Assets |  |
Fair Value |  |
Investments at fair value | 30,500 |
Ardellis Insurance Ltd. |  |
Fair Value |  |
Total Fair Value | 74,008 | 69,780
Estimate of Fair Value Measurement | Recurring |  |
Fair Value |  |
Investments at fair value | 260,990 | 473,685
Estimate of Fair Value Measurement | Recurring | Fixed Income |  |
Fair Value |  |
Investments at fair value | 41,643 | 38,348
Estimate of Fair Value Measurement | Recurring | Money market funds |  |
Fair Value |  |
Investments at fair value | 156,426 | 377,850
Estimate of Fair Value Measurement | Recurring | Treasury Securities |  |
Fair Value |  |
Investments at fair value | 344 | 344
Estimate of Fair Value Measurement | Recurring | Equity |  |
Fair Value |  |
Investments at fair value | 47,440 | 42,431
Estimate of Fair Value Measurement | Recurring | Alternative Investments |  |
Fair Value |  |
Investments at fair value | 4,064 | 4,044
Estimate of Fair Value Measurement | Recurring | Mutual funds |  |
Fair Value |  |
Investments at fair value | 11,073 | 10,668
Estimate of Fair Value Measurement | Recurring | Domestic stock |  |
Fair Value |  |
Investments at fair value | 9,838 | 9,534
Estimate of Fair Value Measurement | Recurring | International stock funds |  |
Fair Value |  |
Investments at fair value | 742 | 641
Estimate of Fair Value Measurement | Recurring | Target funds |  |
Fair Value |  |
Investments at fair value | 10 | 10
Estimate of Fair Value Measurement | Recurring | Bond funds |  |
Fair Value |  |
Investments at fair value | 6 | 6
Estimate of Fair Value Measurement | Recurring | Alternative funds |  |
Fair Value |  |
Investments at fair value | 477 | 477
Estimate of Fair Value Measurement | Recurring | Quoted Prices in Active Markets (Level 1) |  |
Fair Value |  |
Investments at fair value | 162,455 | 389,415
Estimate of Fair Value Measurement | Recurring | Quoted Prices in Active Markets (Level 1) | Fixed Income |  |
Fair Value |  |
Investments at fair value | 5,287 | 5,272
Estimate of Fair Value Measurement | Recurring | Quoted Prices in Active Markets (Level 1) | Money market funds |  |
Fair Value |  |
Investments at fair value | 128,811 | 356,700
Estimate of Fair Value Measurement | Recurring | Quoted Prices in Active Markets (Level 1) | Treasury Securities |  |
Fair Value |  |
Investments at fair value | 344 | 344
Estimate of Fair Value Measurement | Recurring | Quoted Prices in Active Markets (Level 1) | Equity |  |
Fair Value |  |
Investments at fair value | 16,940 | 16,431
Estimate of Fair Value Measurement | Recurring | Quoted Prices in Active Markets (Level 1) | Mutual funds |  |
Fair Value |  |
Investments at fair value | 11,073 | 10,668
Estimate of Fair Value Measurement | Recurring | Quoted Prices in Active Markets (Level 1) | Domestic stock |  |
Fair Value |  |
Investments at fair value | 9,838 | 9,534
Estimate of Fair Value Measurement | Recurring | Quoted Prices in Active Markets (Level 1) | International stock funds |  |
Fair Value |  |
Investments at fair value | 742 | 641
Estimate of Fair Value Measurement | Recurring | Quoted Prices in Active Markets (Level 1) | Target funds |  |
Fair Value |  |
Investments at fair value | 10 | 10
Estimate of Fair Value Measurement | Recurring | Quoted Prices in Active Markets (Level 1) | Bond funds |  |
Fair Value |  |
Investments at fair value | 6 | 6
Estimate of Fair Value Measurement | Recurring | Quoted Prices in Active Markets (Level 1) | Alternative funds |  |
Fair Value |  |
Investments at fair value | 477 | 477
Estimate of Fair Value Measurement | Recurring | Prices with Other Observable Inputs (Level 2) |  |
Fair Value |  |
Investments at fair value | 63,971 | 54,226
Estimate of Fair Value Measurement | Recurring | Prices with Other Observable Inputs (Level 2) | Fixed Income |  |
Fair Value |  |
Investments at fair value | 36,356 | 33,076
Estimate of Fair Value Measurement | Recurring | Prices with Other Observable Inputs (Level 2) | Money market funds |  |
Fair Value |  |
Investments at fair value | 27,615 | 21,150
Estimate of Fair Value Measurement | Recurring | Prices with Unobservable Inputs (Level 3) |  |
Fair Value |  |
Investments at fair value | 34,564 | 30,044
Estimate of Fair Value Measurement | Recurring | Prices with Unobservable Inputs (Level 3) | Equity |  |
Fair Value |  |
Investments at fair value | 30,500 | 26,000
Estimate of Fair Value Measurement | Recurring | Prices with Unobservable Inputs (Level 3) | Alternative Investments |  |
Fair Value |  |
Investments at fair value | $ 4,064 | $ 4,044

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