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MARKETABLE SECURITIES (Continuous Unrealized Loss Position) (Details) - USD ($) | Dec. 31, 2022 | Dec. 31, 2021
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Debt Securities, Available-for-sale [Line Items] |  |
Less Than 12 Months Estimated Fair Market Value, Total marketable securities | $ 45,047,000 | $ 274,380,000
Less Than 12 Months Gross Unrealized Losses, Total marketable securities | (662,000) | (1,186,000)
12 Months or Longer Estimated Fair Market Value, Total marketable securities | 191,443,000 | 0
12 Months or Longer Gross Unrealized Losses, Total marketable securities | (4,732,000) | 0
Total Estimated Fair Market Value, Total marketable securities | 236,490,000 | 274,380,000
Total Gross Unrealized Losses, Total marketable securities | (5,394,000) | (1,186,000)
Debt Securities, Available-for-sale, Allowance for Credit Loss | 0 | 0
Corporate securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less Than 12 Months Estimated Fair Market Value, Total marketable securities | 45,047,000 | 274,380,000
Less Than 12 Months Gross Unrealized Losses, Total marketable securities | (662,000) | (1,186,000)
12 Months or Longer Estimated Fair Market Value, Total marketable securities | 191,443,000 | 0
12 Months or Longer Gross Unrealized Losses, Total marketable securities | (4,732,000) | 0
Total Estimated Fair Market Value, Total marketable securities | 236,490,000 | 274,380,000
Total Gross Unrealized Losses, Total marketable securities | $ (5,394,000) | $ (1,186,000)

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- Definition Amount of allowance for credit loss on 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 326 -SubTopic 30 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124269663&loc=SL82922900-210455 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 9 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=124269663&loc=SL82922900-210455 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aaa) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 Reference 4: 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=124258926&loc=SL82898722-210454 + Details
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