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CASH, CASH EQUIVALENTS AND INVESTMENTS - Schedule of Investments (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
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Short-term Investments [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Available-for-sale Debt Securities, Amortized Cost Basis | $ 414,925 | $ 490,170
Available-for-sale Securities, Gross Unrealized Gains | 3 | 32
Available-for-sale Securities, Gross Unrealized Losses | (2,578) | (5,857)
Available-for-sale Securities, Fair Value Disclosure | 412,350 | 484,345
Long-term Investments [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Available-for-sale Debt Securities, Amortized Cost Basis | 289,152 | 249,943
Available-for-sale Securities, Gross Unrealized Gains | 0 | 52
Available-for-sale Securities, Gross Unrealized Losses | (2,005) | (2,180)
Available-for-sale Securities, Fair Value Disclosure | 287,147 | 247,815
Corporate Bonds [Member] | Short-term Investments [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Available-for-sale Debt Securities, Amortized Cost Basis | 2,386 | 150,698
Available-for-sale Securities, Gross Unrealized Gains | 3 |
Available-for-sale Securities, Gross Unrealized Losses | (16) | (910)
Available-for-sale Securities, Fair Value Disclosure | 2,373 | 149,788
Corporate Bonds [Member] | Long-term Investments [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Available-for-sale Debt Securities, Amortized Cost Basis | 128 | 2,479
Available-for-sale Securities, Gross Unrealized Losses | (118) | (28)
Available-for-sale Securities, Fair Value Disclosure | 10 | 2,451
U.S. Government Bonds [Member] | Short-term Investments [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Available-for-sale Debt Securities, Amortized Cost Basis | 412,539 | 339,472
Available-for-sale Securities, Gross Unrealized Gains |  | 32
Available-for-sale Securities, Gross Unrealized Losses | (2,562) | (4,947)
Available-for-sale Securities, Fair Value Disclosure | 409,977 | 334,557
U.S. Government Bonds [Member] | Long-term Investments [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Available-for-sale Debt Securities, Amortized Cost Basis | 289,024 | 247,464
Available-for-sale Securities, Gross Unrealized Gains |  | 52
Available-for-sale Securities, Gross Unrealized Losses | (1,887) | (2,152)
Available-for-sale Securities, Fair Value Disclosure | $ 287,137 | $ 245,364

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) 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 -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 + Details
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- Definition Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) 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 -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 + Details
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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 -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479130/326-30-45-1 + Details
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