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INVESTMENTS IN SECURITIES (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 29, 2019 | Sep. 30, 2018 | Sep. 29, 2019 | Sep. 30, 2018 | Dec. 30, 2018
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Gross realized gains | $ 4,100,000 | $ 2,500,000 | $ 9,300,000 | $ 5,400,000 |
Proceeds from sale or maturity of available-for-sale securities | 0 | $ 0 | 0 | $ 0 |
Fixed income securities |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Amortized Cost | 276,203,000 |  | 276,203,000 |  | $ 135,286,000
Fair Value | 276,203,000 |  | 276,203,000 |  | 135,286,000
Other |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |
Amortized Cost | 89,049,000 |  | 89,049,000 |  | 67,474,000
Fair Value | $ 89,049,000 |  | $ 89,049,000 |  | $ 67,474,000

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- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942338&loc=SL82898722-210454 + Details
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