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Fair Value Measurements (Narrative) (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 USD ($) item | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Long-term investments | $ 20,779 | $ 24,540 |
Short-term investments | 254,534 | 1,046 |
Purchase and sale of short-term investments | 254,500 | 1,000 |
Purchase of short-term investments | 1,800,000 |  |
Cost method investment, impairment loss | 4,700 | 900 |
Proceeds from sale of short-term investments | $ 1,500,000 | $ 1,300,000 | $ 900,000
Minimum [Member] | Measurement Input, Discount Rate [Member] | Valuation Technique, Discounted Cash Flow [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Average discount rate | item | 0.075 |  |
Maximum [Member] | Measurement Input, Discount Rate [Member] | Valuation Technique, Discounted Cash Flow [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Average discount rate | item | 0.088 |  |
Revolving Credit Facility [Member] | Minimum [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Basis spread on variable interest rate | 1.125% |  |
Revolving Credit Facility [Member] | Maximum [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Basis spread on variable interest rate | 1.50% |  |

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