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Fair Value Measures (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | $ 578,561 | $ 172,171
Liabilities, Fair Value Disclosure | 9,019 | 5,552
Level 1 |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 103,560 | 141,685
Liabilities, Fair Value Disclosure | 0 | 0
Level 2 |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 475,001 | 30,486
Liabilities, Fair Value Disclosure | 9,019 | 5,552
Level 3 |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Liabilities, Fair Value Disclosure | 0 | 0
Money market funds | Cash equivalents: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 75,758 | 120,481
Money market funds | Short-term investments: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 314 | 80
Money market funds | Other non-current assets: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 1,796 | 1,456
Money market funds | Level 1 | Cash equivalents: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 75,758 | 120,481
Money market funds | Level 1 | Short-term investments: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 314 | 80
Money market funds | Level 1 | Other non-current assets: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 1,796 | 1,456
Money market funds | Level 2 | Cash equivalents: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Money market funds | Level 2 | Short-term investments: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Money market funds | Level 2 | Other non-current assets: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Money market funds | Level 3 | Cash equivalents: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Money market funds | Level 3 | Short-term investments: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Money market funds | Level 3 | Other non-current assets: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
U.S. Government treasury bills | Cash equivalents: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 9,977 |
U.S. Government treasury bills | Available-for-sale Securities |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 412,987 |
U.S. Government treasury bills | Level 1 | Cash equivalents: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 0 |
U.S. Government treasury bills | Level 1 | Available-for-sale Securities |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 0 |
U.S. Government treasury bills | Level 2 | Cash equivalents: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 9,977 |
U.S. Government treasury bills | Level 2 | Available-for-sale Securities |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 412,987 |
U.S. Government treasury bills | Level 3 | Cash equivalents: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 0 |
U.S. Government treasury bills | Level 3 | Available-for-sale Securities |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 0 |
Derivative financial instruments | Prepaid expenses and other current assets: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 10,200 | 23,333
Derivative financial instruments | Other non-current assets: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 961 | 7,153
Derivative financial instruments | Level 1 | Prepaid expenses and other current assets: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Derivative financial instruments | Level 1 | Other non-current assets: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Derivative financial instruments | Level 2 | Prepaid expenses and other current assets: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 10,200 | 23,333
Derivative financial instruments | Level 2 | Other non-current assets: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 961 | 7,153
Derivative financial instruments | Level 3 | Prepaid expenses and other current assets: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Derivative financial instruments | Level 3 | Other non-current assets: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Derivative financial instruments | Accrued liabilities: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Liabilities, Fair Value Disclosure | 6,390 | 3,782
Derivative financial instruments | Other long-term liabilities: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Liabilities, Fair Value Disclosure | 2,629 | 1,770
Derivative financial instruments | Level 1 | Accrued liabilities: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Liabilities, Fair Value Disclosure | 0 | 0
Derivative financial instruments | Level 1 | Other long-term liabilities: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Liabilities, Fair Value Disclosure | 0 | 0
Derivative financial instruments | Level 2 | Accrued liabilities: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Liabilities, Fair Value Disclosure | 6,390 | 3,782
Derivative financial instruments | Level 2 | Other long-term liabilities: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Liabilities, Fair Value Disclosure | 2,629 | 1,770
Derivative financial instruments | Level 3 | Accrued liabilities: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Liabilities, Fair Value Disclosure | 0 | 0
Derivative financial instruments | Level 3 | Other long-term liabilities: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Liabilities, Fair Value Disclosure | 0 | 0
Mutual fund shares | Short-term investments: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 884 | 642
Mutual fund shares | Other non-current assets: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 24,808 | 19,026
Mutual fund shares | Level 1 | Short-term investments: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 884 | 642
Mutual fund shares | Level 1 | Other non-current assets: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 24,808 | 19,026
Mutual fund shares | Level 2 | Short-term investments: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Mutual fund shares | Level 2 | Other non-current assets: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Mutual fund shares | Level 3 | Short-term investments: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Mutual fund shares | Level 3 | Other non-current assets: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 0 | $ 0
Time deposits | Cash equivalents: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 40,876 |
Time deposits | Level 1 | Cash equivalents: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 0 |
Time deposits | Level 2 | Cash equivalents: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | 40,876 |
Time deposits | Level 3 | Cash equivalents: |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |
Assets, Fair Value Disclosure | $ 0 |

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