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Marketable Investments - Unrealized Losses on Debt Investments (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Debt Securities, Available-for-Sale [Line Items] |  |
Less than 12 Months - Market Value | $ 803 | $ 13,098
Less than 12 Months - Unrealized Losses | 4 | 8
12 Months or Greater - Market Value | 997 | 6,872
12 Months or Greater - Unrealized Losses | 2 | 71
Corporate obligations [Member] |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Less than 12 Months - Market Value | 803 | 13,098
Less than 12 Months - Unrealized Losses | 4 | 8
12 Months or Greater - Market Value | 997 | 4,879
12 Months or Greater - Unrealized Losses | $ 2 | 64
Federal agency obligations [Member] |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Less than 12 Months - Market Value |  | 0
Less than 12 Months - Unrealized Losses |  | 0
12 Months or Greater - Market Value |  | 1,993
12 Months or Greater - Unrealized Losses |  | $ 7

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