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Investments - Schedule of Investments (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Available-for-sale securities: |  |
Short-term investments, Amortized Cost | $ 459,123 | $ 315,767
Gross Unrealized Gains | 1,525 | 1,461
Gross Unrealized Losses less than one year | (116) | (78)
Gross Unrealized Losses greater than one year | (347) | (1,759)
Short-term investments, Estimated Fair Value | 460,522 | 316,022
Long-term investments, Amortized Cost | 73,340 | 38,698
Investments-long-term | 73,148 | 39,887
Long-term investments, Estimated Fair Value | 73,003 | 38,067
Amortized Cost | 532,608 | 356,285
Estimated Fair Value | 533,670 | 355,909
Short-term investments |  |
Available-for-sale securities: |  |
Gross Unrealized Gains | 1,525 | 1,461
Gross Unrealized Losses less than one year | (116) | (51)
Gross Unrealized Losses greater than one year | (10) | (1,155)
Long-term investments |  |
Available-for-sale securities: |  |
Gross Unrealized Losses less than one year | 0 | (27)
Gross Unrealized Losses greater than one year | (337) | (604)
Investments-long-term | 73,148 | 39,887
Amortized Cost | 73,485 | 40,518
Certificates of deposit |  |
Available-for-sale securities: |  |
Amortized Cost | 145 | 1,820
Estimated Fair Value | 145 | 1,820
Corporate debt securities |  |
Available-for-sale securities: |  |
Short-term investments, Amortized Cost | 192,617 | 112,055
Short-term investments, Estimated Fair Value | 193,317 | 112,207
Long-term investments, Amortized Cost | 24,484 | 19,306
Long-term investments, Estimated Fair Value | 24,326 | 19,017
Corporate debt securities | Short-term investments |  |
Available-for-sale securities: |  |
Gross Unrealized Gains | 762 | 703
Gross Unrealized Losses less than one year | (58) | (15)
Gross Unrealized Losses greater than one year |  | (536)
Corporate debt securities | Long-term investments |  |
Available-for-sale securities: |  |
Gross Unrealized Losses greater than one year | (158) | (289)
U.S. government and agency debt securities |  |
Available-for-sale securities: |  |
Short-term investments, Amortized Cost | 266,506 | 199,708
Short-term investments, Estimated Fair Value | 267,205 | 199,819
Long-term investments, Amortized Cost | 48,856 | 19,392
Long-term investments, Estimated Fair Value | 48,677 | 19,050
U.S. government and agency debt securities | Short-term investments |  |
Available-for-sale securities: |  |
Gross Unrealized Gains | 763 | 758
Gross Unrealized Losses less than one year | (58) | (36)
Gross Unrealized Losses greater than one year | (6) | (611)
U.S. government and agency debt securities | Long-term investments |  |
Available-for-sale securities: |  |
Gross Unrealized Losses less than one year |  | (27)
Gross Unrealized Losses greater than one year | $ (179) | (315)
Non-U.S. government debt securities |  |
Available-for-sale securities: |  |
Short-term investments, Amortized Cost |  | 4,004
Short-term investments, Estimated Fair Value |  | 3,996
Non-U.S. government debt securities | Short-term investments |  |
Available-for-sale securities: |  |
Gross Unrealized Losses greater than one year |  | $ (8)

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