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Note 6. Cash, Cash Equivalents, and Marketable Securities (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Cash and cash equivalents | $ 1,621,376 | $ 1,946,994 |  |
Marketable securities | 171,583 | 155,495 |  |
Total cash, cash equivalents, and marketable securities | 1,792,959 | 2,102,489 |  |
Restricted cash - current | 8,262 | 8,262 |  |
Restricted cash - noncurrent | 3,613 | 3,621 |  |
Restricted cash equivalents - noncurrent | 4,972 | 6,192 |  |
Total cash, cash equivalents, restricted cash and restricted cash equivalents | 1,638,223 | 1,965,069 | $ 1,493,462 | $ 1,455,837
Marketable securities, sale proceeds | 67,500 | 34,900 |  |
Marketable securities, realized gain | 100 |  |  |
Marketable securities, realized loss |  | (100) |  |
Time deposits [Member] |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Marketable securities | 162,836 | 76,511 |  |
U.S. debt [Member] |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Marketable securities | 8,747 | 44,089 |  |
Foreign debt [Member] |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Marketable securities | 0 | 34,895 |  |
Cash [Member] |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Cash and cash equivalents | 1,094,796 | 841,310 |  |
Money Market Funds [Member] |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |
Cash and cash equivalents | $ 526,580 | $ 1,105,684 |  |

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- Definition Amount 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. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483467/210-10-45-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-4 + Details
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- Definition Amount of realized gain 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 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-9 + Details
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