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Fair Value Measurements (Narrative) (Details) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 USD ($) item | Jun. 30, 2023 USD ($) | Jun. 30, 2024 USD ($) item | Jun. 30, 2023 USD ($) | Dec. 31, 2023 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Long-term investments | $ 19,247 |  | $ 19,247 |  | $ 24,540
Short-term investments | 30,400 |  | 30,400 |  | $ 1,046
Purchase of short-term investments |  |  | 700,000 |  |
Cost method investment, impairment loss | $ 0 | $ 0 | $ 0 | $ 0 |
Proceeds from sale of short-term investments |  |  |  | $ 600 |
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 | 0.078 |  | 0.078 |  |
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 |  | 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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