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RESTRICTED CASH AND INVESTMENTS (Tables) | 6 Months Ended
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Jun. 28, 2020
Restricted Cash and Investments [Abstract] |
Schedule of restricted cash and investments | The following is a summary of the carrying value of our restricted cash and investments:
(in thousands) | June 28, 2020 | December 29, 2019
Cash collateral held by insurance carriers | $ | 24,308 |  | $ | 24,612 |
Cash and cash equivalents held in Trust | 21,922 |  | 23,681 |
Investments held in Trust | 143,731 |  | 149,373 |
Deferred compensation investments | 11,981 |  | 13,670 |
Company owned life insurance policies | 12,343 |  | 13,126 |
Other restricted cash and cash equivalents | 3,559 |  | 6,470 |
Total restricted cash and investments | $ | 217,844 |  | $ | 230,932 |
Schedule of held-to-maturity investments | The amortized cost and estimated fair value of our held-to-maturity investments held in Trust, aggregated by investment category as of June 28, 2020 and December 29, 2019, were as follows:
| June 28, 2020
(in thousands) | Amortized cost | Gross unrealized gains | Gross unrealized losses | Fair value
Municipal debt securities | $ | 71,117 |  | $ | 3,411 |  | $ | — |  | $ | 74,528 |
Corporate debt securities | 70,717 |  | 2,746 |  | (1 | ) | 73,462 |
Agency mortgage-backed securities | 897 |  | 34 |  | — |  | 931 |
U.S. government and agency securities | 1,000 |  | 134 |  | — |  | 1,134 |
Total held-to-maturity investments | $ | 143,731 |  | $ | 6,325 |  | $ | (1 | ) | $ | 150,055 |
| December 29, 2019
(in thousands) | Amortized cost | Gross unrealized gains | Gross unrealized losses | Fair value
Municipal debt securities | $ | 72,017 |  | $ | 2,219 |  | $ | — |  | $ | 74,236 |
Corporate debt securities | 75,000 |  | 1,102 |  | (34 | ) | 76,068 |
Agency mortgage-backed securities | 1,357 |  | 21 |  | (2 | ) | 1,376 |
U.S. government and agency securities | 999 |  | 52 |  | — |  | 1,051 |
Total held-to-maturity investments | $ | 149,373 |  | $ | 3,394 |  | $ | (36 | ) | $ | 152,731 |
Schedule of held-to-maturity investments by contractual maturity | The amortized cost and fair value by contractual maturity of our held-to-maturity investments are as follows:
| June 28, 2020
(in thousands) | Amortized cost | Fair value
Due in one year or less | $ | 25,297 |  | $ | 25,545 |
Due after one year through five years | 90,729 |  | 94,717 |
Due after five years through ten years | 27,705 |  | 29,793 |
Total held-to-maturity investments | $ | 143,731 |  | $ | 150,055 |

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- Definition Tabular disclosure of information about investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27232-111563 + Details
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