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v3.21.2

RESTRICTED CASH AND INVESTMENTS (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 27, 2021 | Jun. 28, 2020 | Jun. 27, 2021 | Jun. 28, 2020 | Dec. 27, 2020
Restricted Cash and Investments [Line Items] |  |  |  |  |
Cash collateral held by insurance carriers | $ 26,922 |  | $ 26,922 |  | $ 26,025
Cash and cash equivalents held in Trust | 26,344 |  | 26,344 |  | 29,410
Investments held in Trust | 135,894 |  | 135,894 |  | 152,247
Deferred compensation investments | 6,303 |  | 6,303 |  | 5,915
Company owned life insurance policies | 28,016 |  | 28,016 |  | 26,267
Other restricted cash and cash equivalents | 1,170 |  | 1,170 |  | 670
Restricted cash and investments | 224,649 |  | 224,649 |  | 240,534
Held-to-maturity Securities, Reconciliation to Fair Value [Abstract] |  |  |  |  |
Amortized cost of held-to-maturity investments | 135,894 |  | 135,894 |  | 152,247
Gross unrealized gains | 4,599 |  | 4,599 |  | 6,090
Gross unrealized losses | (191) |  | (191) |  | (41)
Fair value | 140,302 |  | 140,302 |  | 158,296
Held-to-maturity securities, amortized cost [Abstract] |  |  |  |  |
Amortized cost of held-to-maturity investments | 135,894 |  | 135,894 |  | 152,247
Held-to-maturity securities, fair value [Abstract] |  |  |  |  |
Fair value | 140,302 |  | 140,302 |  | 158,296
Unrealized gains (losses) on Investments | 1,549 | $ (3,114) | (2,426) | $ (1,727) |
Municipal debt securities |  |  |  |  |
Held-to-maturity Securities, Reconciliation to Fair Value [Abstract] |  |  |  |  |
Amortized cost of held-to-maturity investments | 61,240 |  | 61,240 |  | 67,287
Gross unrealized gains | 2,686 |  | 2,686 |  | 3,436
Gross unrealized losses | 0 |  | 0 |  | 0
Fair value | 63,926 |  | 63,926 |  | 70,723
Held-to-maturity securities, amortized cost [Abstract] |  |  |  |  |
Amortized cost of held-to-maturity investments | 61,240 |  | 61,240 |  | 67,287
Held-to-maturity securities, fair value [Abstract] |  |  |  |  |
Fair value | 63,926 |  | 63,926 |  | 70,723
Corporate debt securities |  |  |  |  |
Held-to-maturity Securities, Reconciliation to Fair Value [Abstract] |  |  |  |  |
Amortized cost of held-to-maturity investments | 73,396 |  | 73,396 |  | 83,467
Gross unrealized gains | 1,809 |  | 1,809 |  | 2,511
Gross unrealized losses | (191) |  | (191) |  | (41)
Fair value | 75,014 |  | 75,014 |  | 85,937
Held-to-maturity securities, amortized cost [Abstract] |  |  |  |  |
Amortized cost of held-to-maturity investments | 73,396 |  | 73,396 |  | 83,467
Held-to-maturity securities, fair value [Abstract] |  |  |  |  |
Fair value | 75,014 |  | 75,014 |  | 85,937
Agency mortgage-backed securities |  |  |  |  |
Held-to-maturity Securities, Reconciliation to Fair Value [Abstract] |  |  |  |  |
Amortized cost of held-to-maturity investments | 258 |  | 258 |  | 493
Gross unrealized gains | 9 |  | 9 |  | 19
Gross unrealized losses | 0 |  | 0 |  | 0
Fair value | 267 |  | 267 |  | 512
Held-to-maturity securities, amortized cost [Abstract] |  |  |  |  |
Amortized cost of held-to-maturity investments | 258 |  | 258 |  | 493
Held-to-maturity securities, fair value [Abstract] |  |  |  |  |
Fair value | 267 |  | 267 |  | 512
U.S. government and agency securities |  |  |  |  |
Held-to-maturity Securities, Reconciliation to Fair Value [Abstract] |  |  |  |  |
Amortized cost of held-to-maturity investments | 1,000 |  | 1,000 |  | 1,000
Gross unrealized gains | 95 |  | 95 |  | 124
Gross unrealized losses | 0 |  | 0 |  | 0
Fair value | 1,095 |  | 1,095 |  | 1,124
Held-to-maturity securities, amortized cost [Abstract] |  |  |  |  |
Amortized cost of held-to-maturity investments | 1,000 |  | 1,000 |  | 1,000
Held-to-maturity securities, fair value [Abstract] |  |  |  |  |
Fair value | 1,095 |  | 1,095 |  | $ 1,124
Restricted cash and investments |  |  |  |  |
Held-to-maturity Securities, Reconciliation to Fair Value [Abstract] |  |  |  |  |
Amortized cost of held-to-maturity investments | 135,894 |  | 135,894 |  |
Fair value | 140,302 |  | 140,302 |  |
Held-to-maturity securities, amortized cost [Abstract] |  |  |  |  |
Due in one year or less | 21,607 |  | 21,607 |  |
Due after one year through five years | 105,331 |  | 105,331 |  |
Due after five years through ten years | 8,956 |  | 8,956 |  |
Amortized cost of held-to-maturity investments | 135,894 |  | 135,894 |  |
Held-to-maturity securities, fair value [Abstract] |  |  |  |  |
Due in one year or less | 21,826 |  | 21,826 |  |
Due after one year through five years | 108,987 |  | 108,987 |  |
Due after five years through ten years | 9,489 |  | 9,489 |  |
Fair value | $ 140,302 |  | $ 140,302 |  |

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