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Fair Value Measures (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024 | Mar. 31, 2024
--- | --- | --- | ---
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | $ 437,353 | $ 615,533 | $ 589,187
Liabilities, Fair Value Disclosure | 3,125 | 1,738 | 2,073
Level 1 |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 32,159 | 193,340 | 86,413
Liabilities, Fair Value Disclosure | 0 | 0 | 0
Level 2 |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 405,194 | 422,193 | 502,774
Liabilities, Fair Value Disclosure | 3,125 | 1,738 | 2,073
Level 3 |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 0 | 0 | 0
Liabilities, Fair Value Disclosure | 0 | 0 | 0
Money market funds | Cash equivalents: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 364 | 160,743 | 57,144
Money market funds | Short-term investments: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 247 | 384 | 343
Money market funds | Other non-current assets: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 1,801 | 1,263 | 1,532
Money market funds | Level 1 | Cash equivalents: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 364 | 160,743 | 57,144
Money market funds | Level 1 | Short-term investments: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 247 | 384 | 343
Money market funds | Level 1 | Other non-current assets: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 1,801 | 1,263 | 1,532
Money market funds | Level 2 | Cash equivalents: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 0 | 0 | 0
Money market funds | Level 2 | Short-term investments: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 0 | 0 | 0
Money market funds | Level 2 | Other non-current assets: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 0 | 0 | 0
Money market funds | Level 3 | Cash equivalents: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 0 | 0 | 0
Money market funds | Level 3 | Short-term investments: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 0 | 0 | 0
Money market funds | Level 3 | Other non-current assets: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 0 | 0 | 0
U.S. government treasury bills | Cash equivalents: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 10,158 | 84,622 | 74,828
U.S. government treasury bills | Available-for-sale Securities |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 333,007 | 281,499 | 366,982
U.S. government treasury bills | Level 1 | Cash equivalents: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 0 | 0 | 0
U.S. government treasury bills | Level 1 | Available-for-sale Securities |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 0 | 0 | 0
U.S. government treasury bills | Level 2 | Cash equivalents: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 10,158 | 84,622 | 74,828
U.S. government treasury bills | Level 2 | Available-for-sale Securities |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 333,007 | 281,499 | 366,982
U.S. government treasury bills | Level 3 | Cash equivalents: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 0 | 0 | 0
U.S. government treasury bills | Level 3 | Available-for-sale Securities |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 0 | 0 | 0
Derivative financial instruments | Prepaid expenses and other current assets: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 17,259 | 24,629 | 14,842
Derivative financial instruments | Other non-current assets: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 4,929 | 9,137 | 5,423
Derivative financial instruments | Level 1 | Prepaid expenses and other current assets: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 0 | 0 | 0
Derivative financial instruments | Level 1 | Other non-current assets: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 0 | 0 | 0
Derivative financial instruments | Level 2 | Prepaid expenses and other current assets: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 17,259 | 24,629 | 14,842
Derivative financial instruments | Level 2 | Other non-current assets: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 4,929 | 9,137 | 5,423
Derivative financial instruments | Level 3 | Prepaid expenses and other current assets: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 0 | 0 | 0
Derivative financial instruments | Level 3 | Other non-current assets: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 0 | 0 | 0
Derivative financial instruments | Accrued liabilities: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Liabilities, Fair Value Disclosure | 1,377 | 1,725 | 1,918
Derivative financial instruments | Other long-term liabilities: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Liabilities, Fair Value Disclosure | 1,748 | 13 | 155
Derivative financial instruments | Level 1 | Accrued liabilities: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Liabilities, Fair Value Disclosure | 0 | 0 | 0
Derivative financial instruments | Level 1 | Other long-term liabilities: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Liabilities, Fair Value Disclosure | 0 | 0 | 0
Derivative financial instruments | Level 2 | Accrued liabilities: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Liabilities, Fair Value Disclosure | 1,377 | 1,725 | 1,918
Derivative financial instruments | Level 2 | Other long-term liabilities: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Liabilities, Fair Value Disclosure | 1,748 | 13 | 155
Derivative financial instruments | Level 3 | Accrued liabilities: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Liabilities, Fair Value Disclosure | 0 | 0 | 0
Derivative financial instruments | Level 3 | Other long-term liabilities: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Liabilities, Fair Value Disclosure | 0 | 0 | 0
Mutual fund shares | Short-term investments: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 1,822 | 1,725 | 1,945
Mutual fund shares | Other non-current assets: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 27,925 | 29,225 | 25,449
Mutual fund shares | Level 1 | Short-term investments: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 1,822 | 1,725 | 1,945
Mutual fund shares | Level 1 | Other non-current assets: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 27,925 | 29,225 | 25,449
Mutual fund shares | Level 2 | Short-term investments: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 0 | 0 | 0
Mutual fund shares | Level 2 | Other non-current assets: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 0 | 0 | 0
Mutual fund shares | Level 3 | Short-term investments: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 0 | 0 | 0
Mutual fund shares | Level 3 | Other non-current assets: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 0 | 0 | 0
Time deposits | Cash equivalents: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 39,841 | 22,306 | 40,699
Time deposits | Level 1 | Cash equivalents: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 0 | 0 | 0
Time deposits | Level 2 | Cash equivalents: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | 39,841 | 22,306 | 40,699
Time deposits | Level 3 | Cash equivalents: |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Assets, Fair Value Disclosure | $ 0 | $ 0 | $ 0

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