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Fair Value Measures and Disclosures - Schedule of Assets Measured on a Recurring Basis (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Fair value of financial instruments |  |
Long term equity investments | $ 18,814 | $ 187,716
Fair Value, Recurring | Estimate of Fair Value Measurement |  |
Fair value of financial instruments |  |
Cash and cash equivalents | 1,687,829 | 3,213,376
Debt securities (government) | 470,263 | 442,667
Long term equity investments | 18,814 | 187,716
Assets, Fair Value Disclosure | 2,176,906 | 3,843,759
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Recurring |  |
Fair value of financial instruments |  |
Cash and cash equivalents | 1,687,829 | 3,213,376
Debt securities (government) | 0 | 0
Long term equity investments | 18,814 | 187,716
Assets, Fair Value Disclosure | 1,706,643 | 3,401,092
Significant Other Observable Inputs (Level 2) | Fair Value, Recurring |  |
Fair value of financial instruments |  |
Cash and cash equivalents | 0 | 0
Debt securities (government) | 470,263 | 442,667
Long term equity investments | 0 | 0
Assets, Fair Value Disclosure | 470,263 | 442,667
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring |  |
Fair value of financial instruments |  |
Cash and cash equivalents | 0 | 0
Debt securities (government) | 0 | 0
Long term equity investments | 0 | 0
Assets, Fair Value Disclosure | $ 0 | $ 0

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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- Definition Amortized cost excluding accrued interest, after allowance for credit loss, 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/2009/role/commonPracticeRef -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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